Hi
I'm a new user with an Excalibur which I bought second hand the other day and generally am fairly impressed with. I have had it unlocked and bought a 4Gb microSDHC Card and upgraded to 6.1 using Kavana's ROM remade by Ricky.
I do have one small problem though, the A2DP is sounding scratchy whenever I use it to play music. It's not like an interference scratchy, but the highs of the music sound clipped and very scratchy, especially noticable at the higher volumes which I am having to use because the volume also does not go especially high, but it's present but softer at the lower volume levels.
I'm using Coreplayer but have the same experience with WMP or in fact any audio application I use. The files are fairly good 320kbps encodes in MP3 and AAC which sound excellent on the computer and I have tried a variety of files as well as some Youtube streams, all with the same results.
The headset is a Sony Ericsson DS-200 which is the dongle type headset where you can plug in your own headphones. The headset and headphones combination again sounds excellent when paired with a Sony Bluetooth walkman and an old SE mobile phone with A2DP.
I'm guessing it might be drivers, or something? I have ordered a wired headphone adaptor but would really like to use A2DP if possible.
Finally, if this is fixable, is there any way to boost the volume? My headset does not have a volume control, but the Coreplayer etc. volume control adjusts the volume - it just doesn't go very high and I can imagine it wouldn't drown out, for instance, public transport noise.
Thanks in advance
Hi
Sorry, should have really done a search! I found this:
http://www.htcwiki.com/page/Tweaks+and+Hacks?t=anon
and tweaked the registry settings and it's sounding considerably better now. Unfortunately it seems to have introduced a bug where the wireless stereo headset icon no longer appears, all that appears is the standard headset icon (the one with the microphone on it) but A2DP is working so I can live with that!
thanks for the link, Ive seen this tweak in other forums but this one the directions were way easier to follow.
After a while the sound through my headphones sounded wierd the voices were super low and the bass almost completely gone.. if I play it through power amp with the volume control on right or left meaning only play out of those sides it sounds perfectly normal... but if I place the balance in the middle it back to the wierd sound... any idea what could cause this and how to fix it.
How about your BT ? How does it sound ? I recently paired my E4GT to my Ford (using SYNC) and I noticed the volume was really low, compared to my old Blackberry 8350 (which worked perfectly). Also the quality of the voice seemed much lower when compared to the Blackberry... it doesn't make sense.
The weird part is that media files are playing exactly as before, so the music sounds very good while call quality is ... well it $#!^...
peryp9 said:
How about your BT ? How does it sound ? I recently paired my E4GT to my Ford (using SYNC) and I noticed the volume was really low, compared to my old Blackberry 8350 (which worked perfectly). Also the quality of the voice seemed much lower when compared to the Blackberry... it doesn't make sense.
The weird part is that media files are playing exactly as before, so the music sounds very good while call quality is ... well it $#!^...
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Not sure But an important factor is I did pair my cellphone up with my Car's inbuilt ipod adapter I used a Female ipod to Auxilary adapter to connect my phone to the cars audio system would that have caused it? I tried factory reset everything still sounds the same... I don't know why... would there be any app or program to test the audio quality? like a virtual headphone test or something?
Edit: I played a Dolby headphone test on my phone using the earphones and everything seems okay except for when it does the LFE Hz test at about 80-75 Hz I can't hear anything, but on my computer I can hear all of them here is the link http://www.youtube.com/watch?v=gUrk2W_r5fc
Hey guys,
So my previous Android device, I downloaded a graphic EQ, and it just worked. Even if I was watching a movie sans headphones, I could use it to boost mid-range so that dialogue was a little louder. It didn't increase overall volume, but it did shape sound and it didn't decrease overall volume.
On my T211, I have downloaded EQs, and they work provided I am not streaming audio via bluetooth. It would kind of be cool if they worked with bluetooth speakers as well (not sure if they work with bluetooth headphones) - but the bigger annoyance for me, is that if I boost one frequency, it seems that the overall media volume declines proportionately. I don't know if it works exactly to that effect, but it is something like that; the EQ improves the sound quality quite a bit, in fairness the bass is better quality than with my previous phone (w/headphones), but the music only gets so loud. Then I turn the EQ off, and the music is noticeably louder, but the sound is flat and lower quality. It's as if there's an internal safeguard to limit overall audio output, or the power it uses, or something.
There seem to be several files in the system/etc folder which would seem to govern volume and audio effects. But I haven't figured out any more than that. Not a big deal - I own a headphone amplifier - but I have seen a tweak to improve headphone volume on the Note 2 and more generally I feel this is a worthy subject for discussion. Anybody have input? If it matters, I deleted my MusicFX.apk file and 'Music Effects' no longer appears in my settings menu (which shouldn't make a difference considering my EQs do work.
I tried to do a search for headphones over the speaker but didn't come up with anything, so...if a thread like this is already out there please point in right direction and delete then. Alrighty on to the question.
When you plug your earphones into the phone you get to listen to some radio(FM) but you also have the option to play the FM radio over the speaker itself, which is awesome. Now I want to know IF something like that is possible for youtube as well? I can't see anything that can enable me to choose the speaker itself(like with FM radio) and instead forces me to listen to it over the earphones.
Is there an option like that and if so, where?
Yes, I'm well aware that this might seem like a completely stupid question, but at any given time someone has to be the idiot that asks it :victory:
BerndM14 said:
I tried to do a search for headphones over the speaker but didn't come up with anything, so...if a thread like this is already out there please point in right direction and delete then. Alrighty on to the question.
When you plug your earphones into the phone you get to listen to some radio(FM) but you also have the option to play the FM radio over the speaker itself, which is awesome. Now I want to know IF something like that is possible for youtube as well? I can't see anything that can enable me to choose the speaker itself(like with FM radio) and instead forces me to listen to it over the earphones.
Is there an option like that and if so, where?
Yes, I'm well aware that this might seem like a completely stupid question, but at any given time someone has to be the idiot that asks it :victory:
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I don't understand why this option would need to exist. Headphones need to be plugged in for FM radio to work because they act as the antenna, which is why you get the option to use the speaker, alternatively. YouTube doesn't need an FM antenna, so just unplug your headphones if you want to use the speakers.
craig0r said:
I don't understand why this option would need to exist. Headphones need to be plugged in for FM radio to work because they act as the antenna, which is why you get the option to use the speaker, alternatively. YouTube doesn't need an FM antenna, so just unplug your headphones if you want to use the speakers.
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Because the audio is louder... Have you tried to listen to a radio station through FM on the speaker and then go and listen to a stream of it at full volume? Somehow it seems that the volume can go higher with the earphones plugged in than to have it NOT plugged in. Yet...It could perhaps be argued that the stream sounds less loud(regardless of the fact that the volume is maxed out) because it is indeed a stream and it might have some interference.
But if the volume can actually go higher as a result of the earphones being plugged in, why can't we have the option then to have the volume louder if we so choose, by plugging in the earphones and maxing out the volume over the speaker? Like we do with FM...?
I take it though, from your response, that such a thing is not possible?
BerndM14 said:
Because the audio is louder... Have you tried to listen to a radio station through FM on the speaker and then go and listen to a stream of it at full volume? Somehow it seems that the volume can go higher with the earphones plugged in than to have it NOT plugged in. Yet...It could perhaps be argued that the stream sounds less loud(regardless of the fact that the volume is maxed out) because it is indeed a stream and it might have some interference.
But if the volume can actually go higher as a result of the earphones being plugged in, why can't we have the option then to have the volume louder if we so choose, by plugging in the earphones and maxing out the volume over the speaker? Like we do with FM...?
I take it though, from your response, that such a thing is not possible?
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Ahh, I think I'm starting to follow. There are a number of factors that are likely causing this differentiation, none of which have to do with having headphones plugged in.
A radio station's FM broadcast and internet broadcast are processed and compressed in different ways. FM compression is analog, while internet compression is digital, and there are crazy different algorithms, but both come down to fitting the "signal" or "data" into a particular bandwidth.
With FM, a station just throws the signal out in all directions, and while it's technically not comparable, there is less need for compression here, as with the internet broadcast, the more listeners there are, the more taxing it is, thus the digital signal is likely more compressed. This is probably more or less the reason for the discrepancy.
Also the streams could be normalized differently. Or any number of other variables. For all intents and purposes, the FM stream and internet stream are two completely different things.
I hope this helped!
(And no, as far as I know there's no option to do what you want, but even if there were, it wouldn't have the effect you're looking for )
Why would compression affect volume? It's not like you need more bits to go louder.
BenPope said:
Why would compression affect volume? It's not like you need more bits to go louder.
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FM audio doesn't have bits, for starters, it's analog radio waves. Functionally, an FM broadcast path is analog to analog to analog, where as a digital broadcast path is closer to "analog to digital to analog."
And from a technical standpoint, yes, more bits *does* equal louder. The more you compress digital audio, the more audio is being removed from the stream. MP3 compression (and probably M4A/AAC) remove the high-end and low-end frequencies:
In a compressionless, raw, audio file, a ton of bits are wasted on sound that is beyond the range of human hearing, and the range that speakers can produce. The point of digital audio compression is to eliminate the functionally "empty" bits, however the more compression there is, the more it starts removing what humans/speakers CAN process. As you approach high compression, mp3s will lose more and more sound, but even with mild compression, you're going to lose the crispness of the highs (like cymbals) and the lows (bass guitars/synths.) This will give it a muddy sound, and as there are less cymbals and bass guitars, the sound is technically quieter. In fact, if you were to compress an mp3 down to like 1Kbps, it's going to mostly sound like static. But I'm not aware of any audio tools that will let you go that low. Online radio stations typically broadcast at 64Kbps or 96Kbps. Which is crap. (Of course I haven't listened to online radio in years, it's probably better by now.) To put it another way, an FM transmission can broadcast at full strength, whether one person is listening or a million. With a digital broadcast, one million listeners will be far more taxing on bandwidth than just one person listening, so it's not cost-effective to broadcast with the same signal quality as FM. Of course FM is subject to radio interference, but that's not selective the way digital is. On FM you'll hear other noises on top of the signal, but as long as your signal is relatively decent, you're not losing much.
Without teaching a course on audio processing, basically:
More processing = more degradation.
More compression = more degradation
Analog is very different than digital for a multitude of reasons that I'm not going into.
EDIT: Also, FM does use compression, but it's a different type. Rather than removing audio based on pitch frequency as digital compression does, it uses dynamic compression, more akin to what a guitarist's compression pedal would do. It makes the quiet noises louder and the loud noises quieter, definitely makes quiet songs louder than if you were listening to an mp3, which doesn't do this type of compression.
ANOTHER EDIT: Unless the topic steers back towards mobile development, I won't indulge this thread anymore. XDA isn't for audio discussions (yes, I know I'm the one who took it off the rails in the first place.) If anyone is still confused as to why FM audio and digital audio sound different, you can PM me.
Hi, I don't know if you have noticed, but the Xiaomi Mi 6 with the original sound recorder app has an outstanding stereo sound quality (set on music and high bitrate), like an ASMR microphone. The problem is that it looks like this can be achieved only with that app; I've tried many other recorder apps but there's no stereo recording and no such a high-quality sound. I also think this is the most underrated characteristic of this flagship. Just to clarify, I put the headphones on my phone, matching the left and right channels with the respective microphones (one on the bottom, near the Type C and one on the top, near the infrared IF), I played a song and in the meanwhile I recorded it. This is the result:
https://drive.google.com/open?id=1dSQfl0mGc_9p7goNMr2-_srRJ5jXi6yi
And this is the original one:
https://www.youtube.com/watch?v=wsv5-RO04Ds
(I hope not to have problems with copyrights or something; in that case, let me know about it)
Anyway, is there any way to have the same sound quality with a different ROM? I found the MIUI recorded .apk but for some reasons, it doesn't want to install. It would be a real shame if I lost this function.
Have you tried Sony's audio recorder? https://play.google.com/store/apps/details?id=com.sonymobile.androidapp.audiorecorder
I'm using it on Pixel Experience 9, I set the quality to the highest, and it has great sound quality.
Yes, I tried it but the sound quality is way lower than the original app; also, if you select "stereo recording" there's not really a stereo sound because it will record the sound only using the microphone on the bottom of the phone.