[APK] USB Audio Player Pro, is a standout & uses our DAC to 192k! - Moto Z Play Themes, Apps, and Mods

USB Audio Player Pro.
Plays DSD, and FLAC files up to 192000 bit rate on our standard DAC, no USB Hw used.
FLACs get can be played through UAPP at their full glory from non OTG memory.
SACD rips are converted to PCM at 192K from OTG only, which forces you to pick files individuality. If played through UAPP they get downgraded to 44K.
I have tried out every notable player and none sounded like this. I have always preferred vinyl but when Super Audio CDs started growing, I was thrilled. Now I can play my hard drive stash on my phone! Too bad the app does not see OTG.
Playing from OTG is a bit convoluted ( more than a bit ? Depends if you have audiophile ears).
I use File Commander to get UAP to play/find the .dsf or .flac.
Then once playing you can create a playlist as you go. Never having to pick it again with FC.
More on the app's issues with Android 6 http://www.extreamsd.com/forum/showthread.php?tid=155
It isn't easy messing with Mother Android!
File Commander is the only app I can find that does this service well enough. It can be slow on hard drives greater than 200 GB. It is not much good for housekeeping chores.
Update, there are others: File Manager + unlike FC, does a download (efing slow) , X-plore and B1 File too but do not recognize DSD. ES is useless for OTG. Filers are in a sad state for MM on our phone.
I use Solid (not classic) for deleting/ copying.
Note this app does not limit any low or high frequency junk. Vinyl transcriptions that I thought to be OK are not listenable due to pops and clicks.
Be sure to choose Android bit rate as Variable (pic 2).
See pic 1: using FC to load a .DSF (DSD) to UAPP from OTG drive. Pic 4 - 6 settings I used to get 192k.
Pic 7: .dsf (DSD) file residing on internal memory (or sdcard) showing 44k PCM.
Pic 8: the plugin EQ tweeked for my Apple earbuds.
FC
https://play.google.com/store/apps/details?id=com.mobisystems.fileman
UAPP
https://play.google.com/store/apps/details?id=com.extreamsd.usbaudioplayerpro
More to come....

How is the DAC capable of such? Does it even sound good for a mid range phone or even compared to a dedicated DAC?

Locklear308 said:
How is the DAC capable of such? Does it even sound good for a mid range phone or even compared to a dedicated DAC?
Click to expand...
Click to collapse
As I compare the DSD (.dsf) output from a file residing on OTG (192 k PCM) vs the same from SDcard or internal memory (44k PCM) it is stunning as to stereo imaging and placement of instruments beyond the space in my head. Highs are much smoother as well.
I was considering buying a 40 dollar ESS DAC (micro usb) on Amazon and an adapter. Now ....

Locklear308 said:
How is the DAC capable of such? Does it even sound good for a mid range phone or even compared to a dedicated DAC?
Click to expand...
Click to collapse
I think that ESS DAC would allow DSD direct!

Also at volume near 100% I notice no clipping of our Amplifier.

aviwdoowks said:
USB Audio Player Pro.
Plays DSD, and FLAC files up to 192000 bit rate on our standard DAC, no USB Hw used.
FLACs get can be played through UAPP at their full glory from non OTG memory.
SACD rips are converted to PCM at 192K from OTG only, which forces you to pick files individuality. If played through UAPP they get downgraded to 44K.
I have tried out every notable player and none sounded like this. I have always preferred vinyl but when Super Audio CDs started growing, I was thrilled. Now I can play my hard drive stash on my phone! Too bad the app does not see OTG.
Playing from OTG is a bit convoluted ( more than a bit ? Depends if you have audiophile ears).
I use FX Commander to get UAP to play/find the .dsf or .flac.
Then once playing you can create a playlist as you go. Never having to pick it again with FX.
More on the app's issues with Android 6 http://www.extreamsd.com/forum/showthread.php?tid=155
It isn't easy messing with Mother Android!
FX is the only app I can find that does this service well enough. It can be slow on hard drives greater than 200 GB. It is not much good for housekeeping chores, I use Solid for deleting/ copying.
Note this app does not limit any low or high frequency junk. Vinyl transcriptions that I thought to be OK are not listenable due to pops and clicks.
Be sure to choose Android bit rate as Variable (pic 2).
See pic 1: using FX to load a .DSF (DSD) to UAPP from OTG drive. Pic 4 - 6 settings I used to get 192k.
Pic 7: .dsf (DSD) file residing on internal memory (or sdcard) showing 44k PCM.
Pic 8: the plugin EQ tweeked for my Apple earbuds.
https://play.google.com/store/apps/details?id=com.mobisystems.fileman
https://play.google.com/store/apps/details?id=com.extreamsd.usbaudioplayerpro
More to come....
Click to expand...
Click to collapse
How does it compare to the neutron music player. (which I believe holds its own in audio quality)

akshaypatil869 said:
How does it compare to the neutron music player. (which I believe holds its own in audio quality)
Click to expand...
Click to collapse
This is different when using only the phone and no DAC. Neutron may try to render at higher rates but it never blew me away. Nor is there any acknowledgment of it's output.
In UAPP, I did not have to check the Android output shown on the player screen. It was like night and day.

akshaypatil869 said:
How does it compare to the neutron music player. (which I believe holds its own in audio quality)
Click to expand...
Click to collapse
Uuap would not have sounded better if I had not checked the android bitrate to be variable.
Standard settings of it and, I think, other players result in 44k output through the phone without any DAC present

Will it work with music on the SD card too? Or does it have to be loaded from OTG?

It does work! My S7 is dead to me! This phone is great. My FiiO Q1 might collect dust.

From audio_Policy.conf
Snip
AUDIO_DEVICE_OUT_EARPIECE|AUDIO_DEVICE_OUT_SPEAKER|AUDIO_DEVICE_OUT_WIRED_HEADSET|AUDIO_DEVICE_OUT_WIRED_HEADPHONE|AUDIO_DEVICE_OUT_ALL_SCO|AUDIO_DEVICE_OUT_LINE|AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET|AUDIO_DEVICE_OUT_HDMI
flags AUDIO_OUTPUT_FLAG_DEEP_BUFFER
}
compress_offload {
sampling_rates 8000|11025|12000|16000|22050|24000|32000|44100|48000|88200|96000|176400|192000
channel_masks AUDIO_CHANNEL_OUT_MONO|AUDIO_CHANNEL_OUT_STEREO
formats AUDIO_FORMAT_MP3|AUDIO_FORMAT_AAC_LC|AUDIO_FORMAT_AAC_HE_V1|AUDIO_FORMAT_AAC_HE_V2|AUDIO_FORMAT_FLAC
devices
Snip
I just made a request for support with a big name player that browses OTG and plays DSD too. Can you guess who?

So I am considering getting this app, however want to make sure it will do what I want it to, LOL.
So I dont have any external USB DAC right now, and normally stream music to my car using Bluetooth to my AudioEngine B1. It sounds good, but looking for the Android DAC to help improve once I start playing my local DSD files and high quality recordings. With this setup, will this improve the sound considerably?

banshee28 said:
So I am considering getting this app, however want to make sure it will do what I want it to, LOL.
So I dont have any external USB DAC right now, and normally stream music to my car using Bluetooth to my AudioEngine B1. It sounds good, but looking for the Android DAC to help improve once I start playing my local DSD files and high quality recordings. With this setup, will this improve the sound considerably?
Click to expand...
Click to collapse
You may want to wait as UAPP will not browse OTG and said to me, no plans to do it.
Yet PowerAmp does browse now and they say they are tring to support all phone DACs
Go my post in Q & A. Register and submit.
You may not get 192k over BT

banshee28 said:
So I am considering getting this app, however want to make sure it will do what I want it to, LOL.
So I dont have any external USB DAC right now, and normally stream music to my car using Bluetooth to my AudioEngine B1. It sounds good, but looking for the Android DAC to help improve once I start playing my local DSD files and high quality recordings. With this setup, will this improve the sound considerably?
Click to expand...
Click to collapse
You can play OTG from a Playlist, it is the only way to get 192k PCM from a dsf too.

I am still on Marshmallow and unrooted. Nougat users, does USB Audio player play high resolution?
Does File Commander browse OTG and pass audio files to the player?
Thanks

Any Nougat stock no root working equalizer software for MZP need advices what to use.
Wysłane z mojego XT1635-02 przy użyciu Tapatalka

Has anyone tested this with a dragonfly?

Locklear308 said:
Has anyone tested this with a dragonfly?
Click to expand...
Click to collapse
Splain pleaze

DAC
Right!
I never used a DAC btw.

sebx_g1 said:
Any Nougat stock no root working equalizer software for MZP need advices what to use.
Wysłane z mojego XT1635-02 przy użyciu Tapatalka
Click to expand...
Click to collapse
This works for me.

Related

Which is the best audio player for WM - WITH BEST AUDIO QUALITY!!!!

Hi
Im looking for a audio player which has the best audio quality- please suggest something!!
I basically need an audio player which plays mp3 has a lot of functions(EQ, bass boost etc.) and has the best audio quality!!!
I need it because I have a "kicka**" sound system from "Magnat" at home and I want to reach its full potential, of more than 2000 wats from my Touch HD & my phone is being used as a media center in a lot of parties, cuz I have the biggest music libary on my phone!!!!!!
the inbuilt music player in tf3d is good. it has an equaliser but no volume control if you choose to use it, but then you could control the volume which your music system.
the inbuilt music player is ****.
try pocketplayer or mortplayer. these are really professional players.
but dont expect huge differences in sound output, they will be the same. it depends on what you set in the equalizers..
have you tried lcg jukebox .... !!! try it
There is Phantasm Music Player (40iPlay), but it is hard to buy it because of the paranoid policy of its author.
Using 3rd party players you cannot use remote controls on headsets (for example I'm using Nokia BH-503 with my HD). Am I right?
External controls seems fine... so far
m1c4d0 said:
Using 3rd party players you cannot use remote controls on headsets (for example I'm using Nokia BH-503 with my HD). Am I right?
Click to expand...
Click to collapse
Not true really, as I use Nitrogen (audio/music player) and it works fine with both my SE MBW-150 and HBH220 Bluetooth adapter. Both needing a little messing with, but allows me to choose next track, pause and play.
I'd would prefer not to use an additional music player, because it always needs messing around with to get fully working with all these random toys, but the inbuilt music player, including WM6.5 media player all suck and no easy to just select a folder and play all at random, which is all I want ever really.
(any suggestions would be nice to know)
m1c4d0 said:
Using 3rd party players you cannot use remote controls on headsets (for example I'm using Nokia BH-503 with my HD). Am I right?
Click to expand...
Click to collapse
PocketPlayer works with bluetooth control (A2DP) since version 3.71.
Mortplayer does not support it thanks to new Manila.
Blame HTC, they introduced some fu**ing "tweak" so that only the manila Player has access to the bluetooth control. Pocketplayer can do it because they reverse engineered the problem.
Just loosing your time
Sorry but you are just loosing your time...
I have spent some time trying to find a solution and I am back to my Ipod to drive my Home sound system (Magnat by the way ).
Your problem has nothing to do with the Software you will use but is has to do with the hardware limitations of these little WM device.
The best sound system will always require the best source as poor dynamic range, frequency response or noise level are hidden by poor sound systems but amplified by top quality ones.
Not convinced?
Just have a look, what you will read will confirm what you hear !
http://www.gsmarena.com/htc_touch_hd-review-300p6.php
Maybe one day we will have a real all-in-one device. But not today !
m1c4d0 said:
Using 3rd party players you cannot use remote controls on headsets (for example I'm using Nokia BH-503 with my HD). Am I right?
Click to expand...
Click to collapse
I also have bh-503 -- it worked with my old ipaq 1940 with all players - so it has to be manila bug, but I havent noticed it!!!
click_fr said:
Sorry but you are just loosing your time...
I have spent some time trying to find a solution and I am back to my Ipod to drive my Home sound system (Magnat by the way ).
Your problem has nothing to do with the Software you will use but is has to do with the hardware limitations of these little WM device.
The best sound system will always require the best source as poor dynamic range, frequency response or noise level are hidden by poor sound systems but amplified by top quality ones.
Not convinced?
Just have a look, what you will read will confirm what you hear !
http://www.gsmarena.com/htc_touch_hd-review-300p6.php
Maybe one day we will have a real all-in-one device. But not today !
Click to expand...
Click to collapse
Before the HD I had Nokia 5610, with the "dedicated sound chip" , I can hear a big differnece beetween the two-- HD - louder & more bass
so the HD is already an improvement!!!
But still some bad things can be covered with good software and sound system!!!!
BTW-- Magnat - ROCKS!!!! 800W subwoofer & some more speakers with more than 2000 wats of power can bring your whole house down!!!!!
player
Hi, the HD doesnt have great sound quality full stop i am afraid, I would say dont worry too much about which player, find one that you find comfortable to use, some are too complex non finger friendly menus for instance. All players have decent Eq's and so you should be able to get the best out of the HD with any player.
hope this helps.
FazZfilmz said:
I'd would prefer not to use an additional music player, because it always needs messing around with to get fully working with all these random toys, but the inbuilt music player, including WM6.5 media player all suck and no easy to just select a folder and play all at random, which is all I want ever really.
(any suggestions would be nice to know)
Click to expand...
Click to collapse
You can do this with Core Player if you disable scan card at start up option and select anything from your storage card rather than from a library. Sound quality better than my Ipod IMO. It has a preamp option.
str0nz0 said:
the inbuilt music player is ****.
try pocketplayer or mortplayer. these are really professional players.
but dont expect huge differences in sound output, they will be the same. it depends on what you set in the equalizers..
Click to expand...
Click to collapse
mortplayer is ****tttt and very complicated to use and too slow with hd and has issues with uninstalling and pocket player is slow on HD as well stick to media player and htc touch flo included player they do the job and hell yaaaa there will be no difference in the sound output so why a third party and ram issues stick to original with this and if you are looking for a light player easy to use try s2p iplayer it looks good and it works great but i did uninstall it and i do use htc included player better than anything.
Pure and simple
@custardo01 - Thanks! I actually use Core player already, but mainly for video playback only, as I the GUi so unfriendly... it's an ugly package, but I guess it works well. However Nitrogen feels most friendly to me right now and easy to use when cycling on the London roads.
In regards to the sound quality, I actually think the quality of the HTC Touch HD is pretty dam good. I've tried various portable toys from dedicated portable audio players, mobile phone and those nasty Apple products, but so far it's not bad at all.
For sure it not ground breaking and would prefer the audio quality that the Sony Ericsson P and X series have, but with good pairing via earphones with low ohm requirements, it's close to lowless quality.
Of course ALL of this is pointless if you simply are only listening to Radio signals, standard Mp3 or basic AAC files. I do a huge amount of audio work, both musically, soundtrack and folly so mainly use wav and any other random stuff is always 320kbps Mp3's ...until I can get Mp3HD to work etc
AAC is pretty good when pushed to the maximum, but I'm to lazy to change back to AAC files after years or being on Mp3's, OGG and mainly multi-channel DTS & DD via WAV.
Any EQ system on almost ANY software is always a BAD thing!
Hardware EQ'ing is another thing altogether and even then is still a bad thing (usually). If it sounds bad, it always will do and using an EQ to improve it, I guess I'm just that type of person that disagree's with EQ'ing because you loose what it really was meant to be and not what it is anymore.
IMO: Audio & Visual should be played pure, flat and as is it was created.
Better music player... anyone?
odm3xda said:
mortplayer is sh... ...htc included player better than anything.
Click to expand...
Click to collapse
All probably very true, but when your using WM6.5 and not TF3D anymore, you need a good player once again, because of course the WMP is NOT an option.
I'd recommended Nitrogen any day, but still looking for somethin better, nicer and possibly simplier. I liked the TF3D audio player when I was using the basic ROM and Dutty's amazing ROM's but since I've moved over to WM6.5 not much choice... right?
Is their a way to access the TF3D via WM6.5 without actually having the TF3D today page open too?
FazZfilmz said:
@custardo01 - Thanks! I actually use Core player already, but mainly for video playback only, as I the GUi so unfriendly... it's an ugly package, but I guess it works well. However Nitrogen feels most friendly to me right now and easy to use when cycling on the London roads.
Click to expand...
Click to collapse
It is not ugly if you use a skin to cover it up. Search for the DiamondVGA Core Player skin. I have it here if you need it. Forget bluetooth you miss out on so much quality IMO. You will see me on a Black Ridgeback in the London streets with the stock wired headphones in - bald bloke with glasses
I want to ride my bicycle... with my HTC Touch HD blasting TooNz!
custardo01 said:
It is not ugly if you use a skin to cover it up. Search for the DiamondVGA Core Player skin. I have it here if you need it. Forget bluetooth you miss out on so much quality IMO. You will see me on a Black Ridgeback in the London streets with the stock wired headphones in - bald bloke with glasses
Click to expand...
Click to collapse
LMAO ...I'm on Ridgeback MX4 (modded) travelling from East London to where ever I need be for post-production editing work etc.
Yeah, I gave up on SE Bluetooth adapter when I got my HTC Touch HD as the quality just wasn't right at all and as you say, wired in is still best. I'm currently using Denon AHC551's earphones until they get worn out and need replacing (soon).
I only really use the adapter for random things and I think the Mrs gets more use out of it now when she's out jogging. She's using my old SE P1 and Bluetooth ADP2 seems to sound so much better through them... strange!?
Would the DiamondVGA skin you are suggesting work OK on a HTC Touch HD?
I use S2P Best audio player IMHO. Combined with HTC Audio Booster or SRS WOW Audio of course.
I have got TF3D player, WMP, coreplayer, S2P, pocket player and nitrogen.
To be honest:
Coreplayer is the worst.
Nitrogen is the best, closest to the ordinary MP3 player, but it is not so user friendly as the playlist is not so good.
Pocket player has a lot of eq. setting, but it does not help much.
One important thing is to reduce the stutter and it can be cured by 1.57 HKG ROM or the patch from Diamond. But Diamond patch may drain your battery in a horrible rate, you should better upgrade your ROM.
FazZfilmz said:
Would the DiamondVGA skin you are suggesting work OK on a HTC Touch HD?
Click to expand...
Click to collapse
Yes it does

New Update on Google Music Now Supports Gapless Playback!!!!

I just got an update today for both my Gnex and N7 and tested it out and it works!!! I am SOO happy now This has been bothering me for so long, but after the update, I put a live album on that is easy to tell and there were NO GAPS!!
I'm just mildly happy. It does work for MP3 and Vorbis files, but not for AAC which I happen to use for my audio collection. Haven't tested any other formats so far.
Definitely a step in the right direction though.
MoosDiagramm said:
I'm just mildly happy. It does work for MP3 and Vorbis files, but not for AAC which I happen to use for my audio collection. Haven't tested any other formats so far.
Definitely a step in the right direction though.
Click to expand...
Click to collapse
Well, I upload my music to google music, and all higher quality music just gets converted to the highest rate MP3 anyway. But that is good to know, thanks.
Listening to it now, love it.
#Galaxy Nexus HSPA+
I think this was done in time to appease people who buy the Nexus 4 and need a solution for music that they can't put on their phone due to the low storage space.
CADude said:
I think this was done in time to appease people who buy the Nexus 4 and need a solution for music that they can't put on their phone due to the low storage space.
Click to expand...
Click to collapse
And gapless playback helps this how?
rand4ll said:
And gapless playback helps this how?
Click to expand...
Click to collapse
People with a ton of music on their computer, especially live albums, tend to love things like gapless playback. If they can't play a lot of music on their phone locally, as is the case on the Nexus 4 with its limited storage which is also needed for apps, photos, video, etc, they will buy another phone or a dedicated mp3 player. However, now that Google music has gapless playback just in time for the sale of the Nexus 4, more people will warm up to the idea of playing their music over the cloud with a Nexus 4 and they will buy it.
This isn't related to cloud storage. Gapless playbck didn't work AT ALL in the Android music app until now, even for files stored on the device.
I've tested a different AAC encoder and the files it produced do play gaplessly.
Apparently, the gapless information stored by Nero AAC (current version 1.5.4.0) isn't supported by the Android music app. It does work an any other device/software player with gapless playback support I tried, so the problem is probably on Google's end. It even works on Apple devices.
Files produced by the Quicktime AAC encoder work fine.
Does it have to be in an album or what? And is the gap less trigger stored in the file itself?
There are some tracks - not live albums - of various artists that have gap less tracks (Green Day's Holiday and Boulevard Of Broken Dreams is an example, Royksopp's Melody A.M. album is another)... So how does it great those tracks in that case? Gap less, or standard?
Cheers. And sent from my mini tractor
You're confusing gapless with crossfade. Crossfade plays the second track before the first ends, merging them into one. Gapless just makes sure that there is no additional gap between the files, the second track is played exactly when the first ends.
As you can see, there is no reason to disable gapless for specific situations. It is never harmful.
I didn't mean cross fade; I know exactly what gapless playback is all I was curious to find out was are there certain rules where gapless playback kicks in, or does it apply on all tracks by default.
(In short - how the app knows when to remove gaps and when to treat it like normal files)
Because it was said that encoding it in AAC using Nero doesn't help, but QuickTime encoding works... So... Kinda confusing me.
sent from my mini tractor
aeoveu said:
I didn't mean cross fade; I know exactly what gapless playback is all I was curious to find out was are there certain rules where gapless playback kicks in, or does it apply on all tracks by default.
(In short - how the app knows when to remove gaps and when to treat it like normal files)
Because it was said that encoding it in AAC using Nero doesn't help, but QuickTime encoding works... So... Kinda confusing me.
sent from my mini tractor
Click to expand...
Click to collapse
Gapless playback under Android doesn't remove any data from the files or depend on any metadata scheme. It just plays the tracks back-to-back so that any silence between tracks is due to that silence being encoded in the files themselves.
The underlying mechanism for gapless playback was added to the Android SDK for Jellybean/4.1. I added it my music app a couple months ago. I was surprised that Google didn't add this into their player at the same time that Jellybean was released.
Oh... So there's no gap or delay when playing the files (or switching from one file to another), right?
I thought it involved using a buffer and cutting to the next file and whatnot.
So its all normal. Thanks.
sent from my mini tractor
Hmm some things are gapless others aren't. Really annoying.
Sent from my Galaxy Nexus using xda premium
aeoveu said:
I didn't mean cross fade; I know exactly what gapless playback is all I was curious to find out was are there certain rules where gapless playback kicks in, or does it apply on all tracks by default.
(In short - how the app knows when to remove gaps and when to treat it like normal files)
Because it was said that encoding it in AAC using Nero doesn't help, but QuickTime encoding works... So... Kinda confusing me.
sent from my mini tractor
Click to expand...
Click to collapse
Ah, now I understand what you mean.
Lossy audio compression (like MP3, AAC, whatever...) adds a bit of silence at the end and beginning of each track. It's part of how lossy audio codecs work.
In order to remove this silence during playback, modern encoding tools write some additional data to the compressed audio file that says "remove x milliseconds at the beginning and y milliseconds at the end" to restore the tracks original length. Players need to look for such data and skip the additional parts accordingly.
If you take an album that has silence at the end of tracks on the CD and convert it to MP3/AAC/whatever, it will add some more silence to it. A player that supports gaplesss playback will remove this additional silence, but keep the original silence that was on the CD.
AFAIK, there is no official standard on how to write this gapless information to the compressed audio file, so different codecs do it in a different way and developers of audio players must take a look at files produced by popular codecs to understand how each codec handles it and implement support for it.
Android 4.2 along with the latest version of the music app supports the format used by Lame MP3, Vorbis and Quicktime AAC (and probably others, these are just the ones I tested). AAC files produced by Nero AAC, which do have gapless data and work fine on other players, are not supported at the moment.
Ahhh so that's how it works. I've been a long time winamp user and use the silence remover capability in there...which does it on the fly! Never tried it with portable devices...but I think I may give it a shot this time.
Cheers!
sent from my mini tractor
I enjoy the cross-fade feature in PowerAmp, would be cool to see that implemented one day too.
Cross fading in those apps are basic i.e. they only work on a constant. Not sure if any of you guys know about this plugin for Winamp called Sqr Advanced Cross fader... it works based on the silence level of the currently paying song, and works wonderfully in most cases.
Then there are times when I end up cross fading songs myself in Winamp
sent from my mini tractor
MoosDiagramm said:
Ah, now I understand what you mean.
Lossy audio compression (like MP3, AAC, whatever...) adds a bit of silence at the end and beginning of each track. It's part of how lossy audio codecs work.
In order to remove this silence during playback, modern encoding tools write some additional data to the compressed audio file that says "remove x milliseconds at the beginning and y milliseconds at the end" to restore the tracks original length. Players need to look for such data and skip the additional parts accordingly.
If you take an album that has silence at the end of tracks on the CD and convert it to MP3/AAC/whatever, it will add some more silence to it. A player that supports gaplesss playback will remove this additional silence, but keep the original silence that was on the CD.
AFAIK, there is no official standard on how to write this gapless information to the compressed audio file, so different codecs do it in a different way and developers of audio players must take a look at files produced by popular codecs to understand how each codec handles it and implement support for it.
Android 4.2 along with the latest version of the music app supports the format used by Lame MP3, Vorbis and Quicktime AAC (and probably others, these are just the ones I tested). AAC files produced by Nero AAC, which do have gapless data and work fine on other players, are not supported at the moment.
Click to expand...
Click to collapse
Very nice explanation, thank you!
So I went ahead and listened to some of my lossy mixes, still .1 second gaps between songs... it hurts wish the player could analyze the spectrum and fix this... guess nobody at google listens to trance
On the plus side, I ran a local mix that was in FLAC, and it was truly gapless! Too bad that it every 30 seconds theres a .5 second pause.....
I remember not having these problems 2004, why do I have them in 2012
- sent from TW galaxy s3 4.1.1
Just use PowerAmp, you'll need to pay a few Euro's, but that player is just great! Gapless playback? Like that is a novelty! PowerAmp had Gapless playback 2 years ago already! Besides that, PowerAmp has a great Equalizer and a big deal of other settings to match it to your liking...

[Q] Nex7/2 (stock Android) very bad audio quality

Having been almost in some sort of heaven with this new tab the last days. However one big problem I just noticed when today bringing the device outdoors for music-listening: the audio quality is terrible.
Now tested with different flac's, 320 kbps MP3's and mp4-video's with sound from the internal speaker or connected to headphones (Sehnheisser and Philips), Technics amplifier, Logitech PC-speakers (two different types,one cheap other expensive). Sound quality is bad on all of them. Compared to my Galaxy phone it is like the difference between a Rols Royce and a Trawant car. Very unnatural metallic sound. And also very quickly (hardly extra bass and/or gain) distrorting. While bass of equalizer (different apps) and not too loud volume one speaker-side of my Sehnheiser headphone blew out..
Anyone else also not happy about audio-quality? Or is there a solution? And what is a good audio-manager for rooted stock Android 4.3? On my phone DSP-Manager for instance works perfectly, but that is not avaible for Nexus 7/2.
Thanks in advance,
Juul
I rooted my n7.2 2 days after getting it. But didn't get a chance to try out the audio quality until I flashed AwesomeBeats. With correct parameters for my satisfaction, the sound quality was awesome, more than my ol HTC Desire. So the suggestion is to flash an audio mod, and see to the parameters for better audio results. The best profile for internal speakers is higher treble, and low, or almost no bass.
I am a huge fan of sound, and have extensively customised all my audio devices, from my pc's internal speakers, to my home-made amplifier and woofer system. ViperFX seems better for my external speaker system, due a larger equalizer, while AwesomeBeats is better for my earphones(also my own)
Another suggestion is to tweak all audio parameters for the audio mod you flash.
try fauxsound app to make it LOUDER, i know it works good but it distorts the sound
or try that viper4 mod for headphone sound quality
The DAC is perfectly fine. The headphone amp has a very high output impedance (38 Ohm), so you may get frequency shifts with headphones. I have a Galaxy S i9000 with Voodoo sound and IMO, the difference between the DACs is very small (there is a big difference driving headphones directly).
You may have a mixer/equalizer setting somewhere that causes clipping and the metallic sound.
The Cyanogenmod based ROMs should come with DSP Manager. I'm fairly sure the CM10.2 nightlies include it; Slim Bean definitely does.
Thanks for reply's.
I have i9000 too and sometimes use DSP other times I activate Voodoo. With eather one, but also with both turned off the sound of the i9000 is very superior. On the Nexus I have only tried equalizer within music player apps and without. Also I read a lot more complaints about dissappointing audio quality of new Nexus around the web and also on some reviews and included discussions on major tech-sites.
I am plannimg on adding DSP to my rooted Nexus 7 Flo with original bootloader. Topic about adding DSP is here: http://forum.xda-developers.com/showthread.php?p=45638957#post45638957 . I also asked a question there concerning keeping OTA-functionality after adding DSP.
Same here, it just doesnt sound as good as my nexus 10 from samsung. Im using earphone audeo 323 something like that. But did u try with poweramp, works for me at least. This is making me less likely to listen to music lol. Getting nexus 5 to replace it for music.
I have tried a lot of music players, PowerAmp Trial included. Not any (or that big) difference in quality compared to different other music players as far I can remember. The user interface is great, but PowerAmp and almost very other music players lack one for me very important feature: samba (smb) support to stream music from my NAS/WDTV Live and Windows Shares.
Found only three musicplayers with very stable smb-stream support: Neutron (trial), XenoAmp and ArmAmp. All the only few other music players with smb were not good enough because of unstable stream or missing features such as lockscreen-support, etc. Neutron and especially XenoAmp are terrible to use concerning their user interface.
ArmAmp is not as fancy as some other music players, but it excels in user friendlyness. Has the for me major important features such as eq and lockscreen-support. And last but not least outstanding quality of smb-streaming from my NAS/WDTV Live. So I bought the ad remover from that app. It streams my music from my Google Drive also perfectly by the way.
(BS Player not so nice interface and misses lockscreen and equalizer (eq) but streams smb great also. Media Players of ES Explorer and Total Commander stream smb-shares also very good but are way too limited in options also).
But I have tried a lot of music players with only local play-support on my Nex7/2. Even too much to mention. They don't fix poor audio quality of device.
A reason to buy PowerAmp by the way might be if stock Android 4.3 had Cifs-support, so you can open all files of NAS/Windows Shares as if they were locally on Android device. Works great on my Galaxy S1 with Slim Bean 4.2.2. Google however broke support for Cifs in recent Android version(s). How I miss that...Looking forward to someone having a solution for that. It makes me even consider a custom rom while one of the major great things of the Nexus is the possibility of OTA-updates.

Avoiding Android Mixer/48Khz upsampling of 44.1/16 audio

Is anybody aware of a system-wide solution to avoid the upsampling of 44.1KHz / 16-bit music to 48KHz?
With system-wide, I mean a solution that does not rely on certain player apps such as UAPP or Neutron, which we know can do it, but only when playing from inside that app. A solution which works with all (or most) audio sources and apps, modifying the default system behavior of upsampling 44/16 to 48KHz when playing to the Quad DAC.
Personally, I am looking for solutions to work with Tidal offline tracks. Others are looking for solutions to Qobuz, Spotify, Google Play Music or other apps.
Do some of the custom ROMs have fixes for this? Are there policy file or build.prop changes that are proven to fix it?
Googling and searching on XDA finds many references to Android's infamous 48KHz upsampling/re-sampling (SRC) but none that look to be actual, working solutions for our phones. I hope I am wrong and that there is a simple fix which I overlooked.
Background
The LG V series and G series (most models) are appreciated by audiophiles for their excellent ESS Sabre DAC (ES9218P, branded Quad DAC by LG). It can deliver amazing sound quality when paired with good headphones or IEMs (In-Ear-Monitors, earphones). (And no, that doesn't necessarily mean High-Impedance headphones/IEMs, but that's a whole other discussion.)
V30 in particular has gained a rather large following among audiophiles, many of whom congregate on head-fi.org, where you will find a huge V30 thread, a growing V40 thread and a dedicated V30 Music apps, tricks and tips thread.
When it comes to HiRes music (anything higher than 48KHz sample rate and anything 24-bit) most music apps play it correctly: Bit-perfect, without any processing or re-sampling, directly to the DAC -- exactly as audiophiles want it. A few apps are known to downsample HiRes music to Android's default sample rate of 48KHz, but those are the exception.
However 44.1KHz / 16-bit music is always routed through Android's Mixer, which upsamples it to 48Khz. This causes artifacts that are audible to good ears, particularly when played on sensitive IEMs. Since 44/16 includes anything CD quality (whether compressed or uncompressed) that means most music in the world gets molested before it reaches the DAC.
For whatever reason, LGs implementation of the ESS DAC throughout the V and G series have suffered from this inability to play 44/16 music without upsampling. It is the one thing that truly hampers their reputation among audiophiles (arguably even more so than the inability to select between gain modes, which is annoying, but not a deal breaker for most).
This can be verified by inspecting the Output Thread of audio_flinger dumps, showing whether an output stream is played through the DIRECT path (not the MIXER path) and with the offloadable flag (sent straight to the DAC for decoding and rendering). Of course it can also be verified by listening for those artifacts.
The last 1.5 years, audiophile V30 users have relied on UAPP or Neutron as music players because they are able to work around this upsampling. They do so by converting 44/16 format music to 44/24 on the fly, adding zero bits to convert 16-bit to 24-bit. Different from the 48KHz upsampling, this is a harmless conversion which doesn't affect audio quality. (Of course it's also much faster, requiring no interpolation.) And once music is in 44/24 format, it is no problem sending it directly to the DAC, as described above.
We recently confirmed that PowerAmp also is able to do this correctly now (which wasn't always the case). But only if you configure it to convert all music to 44/24, which obviously isn’t desirable for HiRes.
UAPP is my personal favorite, as it also supports streaming services Tidal, Qobuz and Google Play Music, in addition to network services and any PCM or DSD file you can throw at it. All of it pristinely bit-perfect. But it cannot support Tidal or Qobuz offline, which means when playing offline you are limited to HiRes music (only a small part of their catalog) unless you can tolerate the 48KHz upsampling of CD quality tracks in the Tidal/Qobuz apps.
Head-Fi titan @csglinux and I have set out looking for a solution to this, along with other interested head-fi members. csglinux has been testing various policy and build.prop edits (so far no cigar), while I have been digging through the ESS driver source code from the kernel (but I am not set up to actually build the kernel).
More background and discussion can be found in csglinux' V30 Music apps, tricks and tips thread on head-fi. I also recently had a brief (and more technical) discussion with @ctheanh about this over in the XDA V40 forum, starting here. Arguably those posts would be more suited here.
We have several ideas, but it is a steep hill to climb, as none of us are Android developers. But before posting pages of what we have already tried, or dozens of audio_flinger dumps from various setups, we wanted to throw the topic out there for input. Again, maybe there is already a solution we have overlooked.
Any input is much appreciated!
TL;DR
I personally recommend UAPP as the best $8 anybody can spend if they care about sound quality on their V30. This is not about avoiding that. But UAPP doesn't cover all scenarios, in particular offline Tidal and Qobuz.
That's why we're looking for a system-wide fix (mod or custom ROM) that avoids the upsampling.
Reserved (more technical background and evidence to come)
TheDannemand said:
Is anybody aware of a system-wide solution to avoid the upsampling of 44.1KHz / 16-bit music to 48KHz?
With system-wide, I mean a solution that does not rely on certain player apps such as UAPP or Neutron, which we know can do it. A solution which works with all (or most) audio sources and apps, changing the default behavior of upsampling 44/16 to 48KHz (when playing to the Quad DAC).
Personally, I am looking for solutions to work with Tidal offline tracks. Others are looking for solutions to Qobuz, Spotify, Google Play Music or other apps.
Do some of the custom ROMs have fixes for this? Are there policy file or build.prop changes that are proven to fix it?
Googling and searching on XDA finds many references to Android's infamous 48KHz upsampling/re-sampling (SRC) but none that look to be actual, working solutions for our phones. I hope I am wrong and that there is a simple fix which I overlooked.
Background
The LG V series and G series (most models) are appreciated by audiophiles for their excellent ESS Sabre DAC (ES9218P, branded Quad DAC by LG). It can deliver amazing sound quality when paired with good headphones or IEMs (In-Ear-Monitors, earphones). (And no, that doesn't necessarily mean High-Impedance headphones/IEMs, but that's a whole other discussion.)
V30 in particular has gained a rather large following among audiophiles, many of whom congregate on head-fi.org, where you will find a huge V30 thread, a growing V40 thread and a dedicated V30 Music apps, tricks and tips thread.
When it comes to HiRes music (anything higher than 48KHz sample rate and anything 24-bit) most music apps play it correctly: Bit-perfect, without any processing or re-sampling, directly to the DAC -- exactly as audiophiles want it. A few apps are known to downsample HiRes music to Android's default sample rate of 48KHz, but those are the exception.
However 44.1KHz / 16-bit music is always routed through Android's Mixer, which upsamples it to 48Khz. This causes artifacts that are audible to good ears, particularly when played on sensitive IEMs. Since 44/16 includes anything CD quality (whether compressed or uncompressed) that means most music in the world gets molested before it reaches the DAC.
For whatever reason, LGs implementation of the ESS DAC throughout the V and G series have suffered from this inability to play 44/16 music without upsampling. It is the one thing that truly hampers their reputation among audiophiles (arguably even more so than the inability to select between gain modes, which is annoying, but not a deal breaker for most).
This can be verified by inspecting the Output Thread of audio_flinger dumps, showing whether an output stream is played through the DIRECT path (not the MIXER path) and with the offloadable flag (sent straight to the DAC for decoding and rendering). Of course it can also be verified by listening for those artifacts.
The last 1.5 years, audiophile V30 users have relied on UAPP or Neutron as music players because they are able to work around this upsampling. They do so by converting 44/16 format music to 44/24 on the fly, adding zero bits to convert 16-bit to 24-bit. Different from the 48KHz upsampling, this is a harmless conversion which doesn't affect audio quality. (Of course it's also much faster, requiring no interpolation.) And once music is in 44/24 format, it is no problem sending it directly to the DAC, as described above.
We recently confirmed that PowerAmp also is able to do this correctly now (which wasn't always the case). But only if you configure it to convert all music to 44/24, which obviously isn’t desirable for HiRes.
UAPP is my personal favorite, as it also supports streaming services Tidal, Qobuz and Google Play Music, in addition to network services and any HiRes PCM or DSD file you can throw at it. All of it pristinely bit-perfect. But it cannot support Tidal or Qobuz offline, which means when playing offline you are limited to HiRes music (only a small part of their catalog) unless you can tolerate the 48KHz upsampling of CD quality tracks in the Tidal/Qobuz apps.
Head-Fi titan @csglinux and I have set out looking for a solution to this, along with other interested head-fi members. csglinux has been testing various policy and build.prop edits (so far no cigar), while I have been digging through the ESS driver source code from the kernel (but I am not set up to actually build the kernel).
More background and discussion can be found in csglinux' V30 Music apps, tricks and tips thread on head-fi. I also recently had a brief (and more technical) discussion with @ctheanh about this over in the XDA V40 forum, starting here. Arguably those posts would be more suited here.
We have several ideas, but it is a steep hill to climb, as none of us are Android developers. But before posting pages of what we have already tried, or dozens of audio_flinger dumps from various setups, we wanted to throw the topic out there for input. Again, maybe there is already a solution we have overlooked.
Any input is much appreciated!
Click to expand...
Click to collapse
Erm i suggest bit perfect mode on USB audio player pro
Mrxyzl said:
Erm i suggest bit perfect mode on USB audio player pro
Click to expand...
Click to collapse
Thank you. Again, I already use that, and have for the last 1.5 years. But UAPP doesn't cover all scenarios, in particular offline Tidal and Qobuz, nor Spotify and other popular streaming services.
That's why I'm asking if anybody knows of a system-wide fix (mod or custom ROM) that avoids the upsampling.
I seem to recall that you did some work into this in a custom ROM, right?
Edit: It's a long opening post, so maybe I should state this briefly:
1) This is about a system-wide fix to avoid the Mixer and upsampling of 44/16 audio when playing through the Quad DAC.
2) This is not about avoiding UAPP or Neutron. I personally recommend UAPP as the best $8 anybody can spend if they care about sound quality on the V30.
So my settings sucks?
TheDannemand said:
snip.
Click to expand...
Click to collapse
Sent from my LG-H932 using XDA Labs
BROKEN1981 said:
So my settings sucks?
Click to expand...
Click to collapse
Well, yes and no
Personally I wouldn't do it. I would set PowerAmp to output at 44.1KHz and 24-bit, which should avoid any re-sampling and just convert to 24-bit. Make sure you disable Dither (somewhere else in those Settings) so that it just adds zero bits in that 16-to-24-bit conversion. That way your 44/16 music should be sent unchanged to the DAC in 44/24 format.
But then you need to change your settings when you play HiRes music in PowerAmp, since otherwise it will be downsampled to 44.1KHz.
That said, as a fixed setting you are much better off letting PowerAmp upsample to 352Khz than letting the Android Mixer upsample to 48Khz. 44-to-352KHz is a harmonic upsampling (8x44=352) so it can be done perfectly, whereas 44-to-48KHz is just ugly. And when playing HiRes 88KHz and 176KHz music, it will be harmonically upsampled to 352Khz as well.
Ideally, PowerAmp would have had a way to only convert 44/16 to 44/24 and pass everything else through untouched. That's what UAPP does when it detects that it's running on a V30.
Another benefit of UAPP is it understands MQA and knows how to set a flag to enable the V30's hardware unfolding and rendering. (Note that you don't have to buy UAPP's optional MQA decoder for this.) With PowerAmp, the MQA will either be lost (if you re-sample or process the stream in any way) or ignored because the flag to enable MQA decoding won't be set.
Disclaimer: I don't use PowerAmp myself, so I cannot say if it it does something other than what those settings imply. I am completely open to corrections if any of my assumptions about it are wrong.
The DAC itself will upsample internally as part of so-called "noise shaping" to minimize the rounding errors that occur when trying to fit a digital sample into an analog sine wave. But we want to leave this process just to the DAC, and not add another step of upsampling (or any other digital modification) before sending music to the DAC. And particularly not an ugly upsampling like 44-to-48KHz, which simply cannot be done in a pretty way.
TheDannemand said:
snip.
Click to expand...
Click to collapse
Thanks for that detailed answer man, I appreciate it!
I tried neutron, hated the UI. I'll try out USB audio pro. Looks like it's a bit updated to MD. It's not as nice looking as PA, but that's ok lol.
Sent from my LG-H932 using XDA Labs
BROKEN1981 said:
Thanks for that detailed answer man, I appreciate it!
I tried neutron, hated the UI. I'll try out USB audio pro. Looks like it's a bit updated to MD. It's not as nice looking as PA, but that's ok lol.
Click to expand...
Click to collapse
I am the same: I tried Neutron and absolutely could not stand that UI. But I know some who love it. And they deserve credit for being first to crack the 48KHz upsampling on V30 (as I understand).
With UAPP I was instantly comfortable with its UI, features, and of course the sound quality -- the latter being as good as it can get, since it plays everything bit perfect and even supports MQA. If it could handle Tidal offline, I wouldn't even need a solution to bypass the Android Mixer, as that is the only big thing missing for me. Again, with others it's Qobuz offline or Spotify or some other music service.
TheDannemand said:
I am the same: I tried Neutron and absolutely could not stand that UI. But I know some who love it. And they deserve credit for being first to crack the 48KHz upsampling on V30 (as I understand).
With UAPP I was instantly comfortable with its UI, features, and of course the sound quality -- the latter being as good as it can get, since it plays everything bit perfect and even supports MQA. If it could handle Tidal offline, I wouldn't even need a solution to bypass the Android Mixer, as that is the only big thing missing for me. Again, with others it's Qobuz offline or Spotify or some other music service.
Click to expand...
Click to collapse
Trying it out, I like it but have a few issues that are getting on my nerves.
1) no cross fade into the new track.
2) It separates my albums for whatever reason. PowerAmp will not do this. My tags are the way I want them. I did my own edits.
Edit, the EM album that's solo is also in the EM album collection. Just chose to list it 2 times.
Sent from my LG-H932 using XDA Labs
BROKEN1981 said:
Trying it out, I like it but have a few issues that are getting on my nerves.
1) no cross fade into the new track.
2) It separates my albums for whatever reason. PowerAmp will not do this. My tags are the way I want them. I did my own edits.
Edit, the EM album that's solo is also in the EM album collection. Just chose to list it 2 times.
Click to expand...
Click to collapse
I apologize for the tardy response. Swamped these days.
1) Ahh. I don't use cross fading myself, but I see what you mean, it's a valid request.
2) My entire music collection is carefully curated as well (manually edited tags) and I've never seen any problems with UAPP handling albums correctly. You could try Clearing the database and Scan again. But you probably already did...
I suggest you write to the Dev about both issues. You can either email [email protected] or post in their support thread on Head-Fi. I've found them very response to user requests and issues.
BTW, also check this recent Head-Fi post by @csglinux: It appears LG really screwed up the Quad DAC in Pie, so it now re-samples even some HiRes files (which all play perfectly on Oreo from most apps). It also sabotages UAPP in the process.
I don't know why LG is so hellbent on messing up music playback, when they spend good money putting a high-end audiophile grade DAC in their phones
TheDannemand said:
I apologize for the tardy response. Swamped these days.
1) Ahh. I don't use cross fading myself, but I see what you mean, it's a valid request.
2) My entire music collection is carefully curated as well (manually edited tags) and I've never seen any problems with UAPP handling albums correctly. You could try Clearing the database and Scan again. But you probably already did...
I suggest you write to the Dev about both issues. You can either email [email protected] or post in their support thread on Head-Fi. I've found them very response to user requests and issues.
BTW, also check this recent Head-Fi post by @csglinux: It appears LG really screwed up the Quad DAC in Pie, so it now re-samples even some HiRes files (which all play perfectly on Oreo from most apps). It also sabotages UAPP in the process.
I don't know why LG is so hellbent on messing up music playback, when they spend good money putting a high-end audiophile grade DAC in their phones
Click to expand...
Click to collapse
I did send an email to the Dev. We tested a few things and then I guess he quickly made a newer version of the app and gave me a download link. It's a beta but he seen what the issue was and fixed it. Total time with emails and download link took about 30 minutes. I never expected the guy to reply so fast that a few minutes would go by with me not seeing his new email.
Awesome support! Just wish the UI would be gesture-based. Having to back out of a current playing album is a pain in the butt. PowerAmp definitely did this correctly.
Sent from my LG-H932 using XDA Labs
I've edited three config files from US998 30b which I attached to this post. With this mod I always get 24bit and 44.1kHz output through Mixer. Now I can't hear the noise, but I'm curious if anyone can so please test it after making a system backup in TWRP. The mod contains the files without any script.
@TheDannemand and everyone who is interested.
I was trying to get direct output, but it's maybe impossible. I tried to have direct output instead of deep_buffer, but only UAPP wanted to use direct and other apps "moved" to primary output. Also the primary output does not tolerate any messing cause it's a p...y. So I'm not able to do what even @csglinux couldn't.
Solutions:
1) It's not possible due to most apps just don't support direct output even if we convert it to 24bit on the fly. Apps can use primary output instead of deep buffer but direct is like an isolated thing lol. I did enough tests with policy files to get bored of it.
2) Maybe I can try replacing or somewhat in mixer_paths_tavil.xml in vendor/etc to get the direct output. (?)
3) We need to do hard modifications in source codes and codec driver. Or just accept this Mixer and use it with some mod. So sad.
DooMLoRD77 said:
I've edited three config files from US998 30b which I attached to this post. With this mod I always get 24bit and 44.1kHz output through Mixer. Now I can't hear the noise, but I'm curious if anyone can so please test it after making a system backup in TWRP. The mod contains the files without any script.
@TheDannemand and everyone who is interested.
I was trying to get direct output, but it's maybe impossible. I tried to have direct output instead of deep_buffer, but only UAPP wanted to use direct and other apps "moved" to primary output. Also the primary output does not tolerate any messing cause it's a p...y. So I'm not able to do what even @csglinux couldn't.
Solutions:
1) It's not possible due to most apps just don't support direct output even if we convert it to 24bit on the fly. Apps can use primary output instead of deep buffer but direct is like an isolated thing lol. I did enough tests with policy files to get bored of it.
2) Maybe I can try replacing or somewhat in mixer_paths_tavil.xml in vendor/etc to get the direct output. (?)
3) We need to do hard modifications in source codes and codec driver. Or just accept this Mixer and use it with some mod. So sad.
Click to expand...
Click to collapse
Huge thanks to you, DoomLoRD77, for your efforts on this. Major props also to TheDanemmand, who has been relentlessly pursuing this little problem with LG's phones.
So, I took your config files, and voila, they work as promised, at least according to audio_flinger:
Output thread 0xeb1034c0, name AudioOut_15, tid 1804, type 0 (MIXER):
I/O handle: 21
Standby: no
Sample rate: 44100 Hz
HAL frame count: 1792
HAL format: 0x6 (AUDIO_FORMAT_PCM_24_BIT_PACKED)
HAL buffer size: 10752 bytes
Channel count: 2
Channel mask: 0x00000003 (front-left, front-right)
Processing format: 0x6 (AUDIO_FORMAT_PCM_24_BIT_PACKED)
That's the good news. The bad news... for reasons I don't completely understand, all the exact same re-sampling artifacts are there, just as audible as before. (I think most of us are using the same test track here - Speak to Me, from The Dark Side Of The Moon.) Either audio_flinger is misreporting, or being fooled, or there's something else going on here that I don't understand.
I'd mentioned to some of the other headfi folks that Amazon's new lossless streaming service doesn't display these digital artifacts (it still doesn't sound quite as good as Tidal to my ears, but the SQ gap is much closer). Amazon re-samples everything on Android to 48 kHz using 32-bit float. I would have thought doing no resampling at all and shifting to 24-bit for the digital volume control would be enough, but apparently not. My best guess is those extra zeros we're packing into those remaining 8 bits aren't actually being used by the digital volume control.
DooMLoRD77 said:
I've edited three config files from US998 30b which I attached to this post. With this mod I always get 24bit and 44.1kHz output through Mixer. Now I can't hear the noise, but I'm curious if anyone can so please test it after making a system backup in TWRP. The mod contains the files without any script.
@TheDannemand and everyone who is interested.
I was trying to get direct output, but it's maybe impossible. I tried to have direct output instead of deep_buffer, but only UAPP wanted to use direct and other apps "moved" to primary output. Also the primary output does not tolerate any messing cause it's a p...y. So I'm not able to do what even @csglinux couldn't.
Solutions:
1) It's not possible due to most apps just don't support direct output even if we convert it to 24bit on the fly. Apps can use primary output instead of deep buffer but direct is like an isolated thing lol. I did enough tests with policy files to get bored of it.
2) Maybe I can try replacing or somewhat in mixer_paths_tavil.xml in vendor/etc to get the direct output. (?)
3) We need to do hard modifications in source codes and codec driver. Or just accept this Mixer and use it with some mod. So sad.
Click to expand...
Click to collapse
Thanks a ton for your efforts here and for sharing these modified files!
Unfortunately I won't be able to test them myself, both because my V30 is still on Oreo (and I have no plans to update it yet) and because I am currently unrooted, waiting for LG to approve a warranty claim (at which they're dragging their feet).
I think with your work and @csglinux' feedback we have established that there is something going on beyond just the re-sampling of the Mixer. The fact your changes eliminated the noise you were hearing, but NOT the artifacts csglinux has reported, would indicate that maybe we have two different problems going on. And so far only playing DIRECT (bypassing the Mixer) solves both problems.
Re your point (3) I did actually spent quite a bit of time studying the source code for the ESS codec driver for the various LG models (es9218p.c and es9218p.h in the kernel source code). Interestingly, 44100 is NOT one of the sample rates listed in there as being supported. The rates and formats listed below are references in the snd_soc_dai_driver structure towards the end of the driver, with which the codec driver declares its capabilities. I've been puzzled how DIRECT play of 24/44 is even possible given this fact. But audio_flinger claims to do it -- and it sounds great when it does.
Code:
#define ES9218_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \
SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000 | \
SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_384000 ) //|SNDRV_PCM_RATE_352800 TODO for dop128
#define ES9218_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | \
SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE | \
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE | \
SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE)
I am completely swamped with work at the moment, so I have no time at all to play (neither play music NOR tinker with my phone). I promise I will contribute more actively again once I have more time AND once I have a phone I can root.
Once again thanks a lot for your contribution! :good::good::good:
csglinux said:
*
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Click to collapse
You're welcome. Yes, I played the Speak To Me song at the volume level of 10/75 from about 0:14 to 0:40. It can be possible that it's just misreporting, but it's weird that you hear the same artifacts and I hear just very very little noise instead of big. So we hear 2 different thing separately. From my experience it seems that the extra 8 bits are used for volume control. Or 24bit is more accurate for interpolating as you wrote something on head-fi. I will see more results later with GR09.
Also, thank you for the efforts and for this test!
I can mention an app for 16/44.1 lossless it's called D**zl#ad*r (replace "*" with "e" and "#" with "o"). I know it's not great to get files for free but I can play it offline through direct. It's for Android too and there are some funny facts how it can work.
TheDannemand said:
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You're welcome, too. Something is really weird about the Mixer as there is 2 kind of issue, indeed. I will just probably give up this soon for now, but I'm thankful for the support as I could achieve a small improvement.
If it's really a declaration as you said and I looked a bit into it then it's also weird how it can support 44.1 without resampling.
To replace Tidal offline there is an app above but it requires re-downloading everything. I solved it by automation. Life is just short to be always a good boy:silly:
Looks like deep-buffer is used for high latency low power output and this is ok for music. As I'm new I can't post proper link here, but googling "android audio deep buffer" gives answer.
To enable deep-buffer for music we need:
adb shell setprop audio.deep_buffer.media 1
So it looks like without it android is still using 48kHz from primary output and still resamples internally or I'm missing something. I own V30 but I'm not rooted yet so can't test this.
In the meantime I've looked into policy and there's additional MQA policy available. Maybe UAPP is using it to play MQA on LG?
I've also tried to use 16bit direct output from UAPP and there's noise on all recordings when V30 volume is low and I set my amplifier to almost full. This is unrealistic scenario but easily shows 16bit limitation. @DooMLoRD77, @TheDannemand could you check this UAPP setting if it plays through mixer or directly: MQA enabled and 16 bit hi-res driver audio format. Could tou also check if setting mixer into 32bit float mode works? This setting works for UAPP.
Eneen said:
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You are right that mixer is using 48khz upsampling either through deep buffer or primary output or call it whatever. Deep buffer for music is by default. Where did you found that MQA policy?
I can't help you now as my V30's motherboard is dying and it will take some time to replace it, but I can tell you that modifying the mixer to give 32bit output gives nothing just mute sound and lagging youtube playback maybe because of buffer size or idk.
You can have 32bit with direct, of course. Anyway, what recordings are giving noise? Vinyl? 16 bit does not have limitations like that. I guess you hear the noise generated by AVC in the Quad DAC. It has a high SNR but not enough if you amplify it with don't know what at max volume. I just assume that. I appreciate your interest.
DooMLoRD77 said:
You are right that mixer is using 48khz upsampling either through deep buffer or primary output or call it whatever. Deep buffer for music is by default. Where did you found that MQA policy?
I can't help you now as my V30's motherboard is dying and it will take some time to replace it, but I can tell you that modifying the mixer to give 32bit output gives nothing just mute sound and lagging youtube playback maybe because of buffer size or idk.
You can have 32bit with direct, of course. Anyway, what recordings are giving noise? Vinyl? 16 bit does not have limitations like that. I guess you hear the noise generated by AVC in the Quad DAC. It has a high SNR but not enough if you amplify it with don't know what at max volume. I just assume that. I appreciate your interest.
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Recordings from Tidal app (except MQAa) and when UAPP is set into 16bit mode inside "HiRes driver audio format" give noise. When I change this option to "Auto" then noise is gone. To hear it I just set sound level to 1/70 (lowest possible) and amplify rest on my amp. I'm not sure it's due to digital volume control or something else, but noise is there and I'm still above my NAD C372 noise level (100dB). How to check output path? I can do it myself but haven't found how...
If music is using deep buffer then your solution is very elegant IHMO and should work. Is youtube also using deep_buffer? Is deep_buffer always used or only when phone is sleeping?
MQA policies are inside /vendor/audio_output_policy.conf: direct_pcm_16_mqa and direct_pcm_24_mqa. As I see /etc/audio_policy.conf is depreciated but looks like /vendor/etc/audio_output_policy.conf is used and there are two different audio_policy_configuration.xml files. Is there documentation for android audio available?
Eneen said:
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I think direct does not support 16bit. It can be DVC or just the not really perfect mixer makes noise or what kind of interpolation error. You should have SDK platform tools to check it. Start inside an adb connection in cmd. Command: "adb shell" or "./adb shell" then "dumpsys media.audio_flinger" and it should read much thing about path and so on.
YouTube uses deep_buffer if it's available. It's used when music is played not only when sleeping. Primary is more like for notifications maybe some games. Sorry, what solution? LoL. 24bit modification?
I will check that policies again, thanks.

General Issues with USB Dongles and external USB DACs

There is another problem with the Pixel 6 (6 and 6 pro) devices. External USB DACs and dongles do not work properly. USB Host API or the DAC offloading and hand-over are bugged. Apps like Tidal, Neutron, USB audio Player Pro crash or can't play music in high res. The problem has already been reported by some users. There has been no statement from Google yet.
A work around for me to get music playing and stop apps freezing was switching off the toggle for "allow all apps use mic" in system/privacy settings.
But this does not solve the issue, as the apps still can not access the USB Dongles or external DACs directly and by pass android system limitations and software processing.
Google skips the 3.5 port and users are forced to use dongles, etc., which do not even work properly.
Google is going the Apple way by certifying hardware that is compatible with the P6P and P6. Their response will be to buy a certified DAC or wait for a software patch
WTF, I don't find the USB PLAYER PRO on playstore... And you?
Myrzul said:
WTF, I don't find the USB PLAYER PRO on playstore... And you?
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This one? https://play.google.com/store/apps/details?id=com.extreamsd.usbaudioplayerpro&hl=en
roirraW edor ehT said:
This one? https://play.google.com/store/apps/details?id=com.extreamsd.usbaudioplayerpro&hl=en
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Yes.. It's not available on my pixel 6 pro.
Myrzul said:
Yes.. It's not available on my pixel 6 pro.
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Maybe they're still using some old Android API and need to start using a newer one. Hopefully, they update it for Android 12.
roirraW edor ehT said:
Maybe they're still using some old Android API and need to start using a newer one. Hopefully, they update it for Android 12.
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I hope for my DAC too... I'm sad
Myrzul said:
I hope for my DAC too... I'm sad
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Try their website https://www.extreamsd.com/ or their support email address [email protected] and let them know. If they're not already actively working on a solution, hopefully they will after you talk to them. Good luck!
They are all aware. I've talked to Davy (USB audio Player Pro). They removed the app for pixel 6 and pixel 6 pro from playstore because of the mentioned issues. The problems have nothing to do with their app. E.g. neutron and tidal are also not working properly or freezing. Google needs to fix their USB DAC hand over.
Nemuritor01 said:
They are all aware. I've talked to Davy (USB audio Player Pro). They removed the app for pixel 6 and pixel 6 pro from playstore because of the mentioned issues. The problems have nothing to do with their app. E.g. neutron and tidal are also not working properly or freezing. Google needs to fix their USB DAC hand over.
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Wow, that sucks. I hope they fix that pronto! Otherwise, I smell a class-action lawsuit (not from me).
Is it app specific and/or USB DAC specific? Because my FiiO BTR3K works fine.
Which app are you using?
Some apps can play music, but most can not bypass Android Software processing.
If you e.g. use tidal in MQA the app connects directly to the DAC and plays in high res.
Same does USB audio Player Pro. Then you see at the bottom "DAC" + bit...
Actually if I get it to play music at all, it's just direct mode, which means nothing.
Some dongles and DACs seem to be working, but just in low/software-processed quality.
So the problem is playing REAL high res, instead of android software compressed/processed audio.
Therefore the USB API seems to be broken. So as soon as the app tries to get direct access to the DAC it freezes or crashes.
Nemuritor01 said:
Which app are you using?
Some apps can play music, but most can not bypass Android Software processing.
If you e.g. use tidal in MQA the app connects directly to the DAC and plays in high res.
Same does USB audio Player Pro. Then you see at the bottom "DAC" + bit...
Actually if I get it to play music at all, it's just direct mode, which means nothing.
So the problem is playing REAL high res, instead of android software compressed/processed audio.
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Click to collapse
Ah gotcha. I don't have anything playing actual high res audio files.
EeZeEpEe said:
Ah gotcha. I don't have anything playing actual high res audio files.
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Yeah, maybe you can play some processed, low quality music through your high res DAC. So the DAC is pretty useless, you could use a standard dongle with bull**** chip, as it doesn't matter.
I know a little bit what I'm talking about.
I did some audio ports and worked with UltraM8 and the other dudes on the Ainur Audio mods.
Nemuritor01 said:
Yeah, maybe you can play some processed, low quality music through your high res DAC. So the DAC is pretty useless, you could use a standard dongle with bull**** chip, as it doesn't matter.
I know a little bit what I'm talking about.
I was the guy doing the DTS port and worked with UltraM8 and the other dudes on the Ainur Audio mods.
Click to expand...
Click to collapse
Yeah I don't even use it wired anyway. I just wanted a very good Bluetooth DAC. For me it's the best of both, using my wired headphones yet not tethered to the device it's connected to.
No issues playing the Hi-Res/Ultra HD music files on Amazon Music through the official Google dongle. Sounds pretty good, can't really tell the difference between it and the V60 that I've had prior.
prohibido_por_la_ley said:
No issues playing the Hi-Res/Ultra HD music files on Amazon Music through the official Google dongle. Sounds pretty good, can't really tell the difference between it and the V60 that I've had prior.
Click to expand...
Click to collapse
As far as I know, Amazon app is still limited to phones native sampling rate and does not bypass Android limitations (android mixer). So it does not make use of the external DAC directly. Different story again. But please correct me, if I'm wrong.
But at least it's one DAC that plays some music.
Here the link to the Google support conversation.
What to do about USB-C audio outputs (adaptor + USB DAC) with pixel 6? - Google Pixel Community
I had a OnePlus 6 with Jack 3.5 and I bought a DAC for the Pixel 6 and I find this problem, I hope they will solve it soon. I can play music but with worse quality
Nemuritor01 said:
Here the link to the Google support conversation.
What to do about USB-C audio outputs (adaptor + USB DAC) with pixel 6? - Google Pixel Community
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Click to collapse
I just read through the conversation and it just baffles me. So the "official" Pixel support forum is run by volunteers who basically tell you "if you have a problem, don't bother us, we just give you pre-prepared text-blocks - if they can't help you, we're out" - if you want "real" support, go and use "feedback form" - meaning you write a wall of text to an known person, won't get any sort of answer or input and have to pray that Google will care?
Uff.
I mean, as a Pixel user you can always try the
-> Settings
-> Tips & Support
-> Contact us
form, that way you can at least write to a person/talk to a human, even though they will most likely also just form a "feedback form" after your conversation, since they are powerless Tier I tech people.
I hope that Google can fix those problems here, so you guys can have fun with your device. Google certainly doesn't deserve the "our phone just works" - status, if they forget to add basic compatibility to common third party hardware.

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