Develop Bugs

High-Quality Audio Recording

I have a question for the developers (im not one):
Though the KF doesnt have a built-in mic, it supports an external one for audio recording. Ive been using Android devices for a little over two years, and have tried a number of audio recoring apps on them.
There are a number of stereo microphones available (from Belkin, Tascam, Blue, etc) that allow high-quality stereo recording on ipods and iphones. There are a number of apps available for recording on Android, but the quality of the recordings is not great. Why is that? Is there something inherent in the Android platform that does not permit hi quality recording?
Sent from my Kindle Fire using Tapatalk

This link might enlighten you a bit. Along with extremely poor audio-latency it would seem that audio recording is also problematic. Strange to find this in an audio device such as a phone eh?

Thanks; I actually used to use the Rehearsal Assistant app. I posed this same question to the developer of J4T, which is a very cool Android multitrack recording app, and I just got his response:
"One reason might be that the best recording quality that is supported by most Android phones is mono, 16-bit pcm, with samplerate 44100. So to make sure a recording app runs on most most android phones, the developer should probably use those numbers and not go any higher.
But it also means it's possible to have android phones that can record at much higher quality, and maybe they are out there. But that capacity may go unused, because the apps are developed for the 'average' phone.
Perhaps on other platforms the 'average phones' have higher bitrates and samplerates.
There are actually 2 ways to do audio recording on Android, but I'm not familiar with the other way (where you can record to AAC or AMR format). Perhaps the quality using those codecs is better than PCM, I don't know.
Please don't take this as a definite answer - this is just a guess from my perspective, maybe a manufacturer (or the Android team) would give a different answer."
I've been using a Belkin Tundtalk stereo microphone with a 3rd-generation ipod nano to make reharsal recordings of my rock band; the quality is actually very good. It records in wav format, stereo, 16-bit pcm, with samplerate 44100. So, outside of the fact that Android records in mono, not stereo, the potential for decent quality is there. The lousy quality must have a lot to do with the cheesy microphones used in the Android phones. If I could find a decent quality mic that would work with my Android phone (or with the Fire), I imagine it would make a big difference.

Yeah, from what I know about Android audio going the other way, the audio-latency issues, Google really managed to screw up on a bunch of levels. The audio app market on the iPhone is pretty big and they just haven't stepped up to the plate for developers from what I can see. I see a few apps coming out like AudioSketch that claim to have custom low-latency audio drivers, but that one isn't available for the Kindle Fire so I really can't say. But, sorry, I am digressing. I'd be curious as to see what results you get from your experiences.

grvthang said:
Perhaps the quality using those codecs is better than PCM, I don't know.
Click to expand...
Click to collapse
This man doesn't now a thing about sound encoding. PCM is uncompressed audio format so it have smallest use of CPU and it has best quality. Only problem is that is space-hungry in comparison with other codec's.
In audio, whole system is good as the weakest thing in it. You need good MIC, you need good MIC input, you need good audio driver and you need good recording app. If one link in this chain is inadequate resulting sound quality is on level of that poor part.

Hey, just a thought but you might be able to turn your question into a free Kindle Fire if you were so inclined.

Buffet_of_Lies said:
Hey, just a thought but you might be able to turn your question into a free Kindle Fire if you were so inclined.
Click to expand...
Click to collapse
Now that you've brought it to my attention, I AM so inclined! That's for letting me know.

I posted my question there, and after about an hour it was Closed as "not constructive" lol.
As I said, I'm not a developer. Even before I posted the question here I googled the subject and haven't been able to come up with a definitive answer as to why this is so. I would think there would be a huge market for after-market microphones for people to use on their Android phones (as there is for iphone and ipod). If I was an iphone fanboy, this would be my first argument against Android - crappy audio recording!

wahoo blue hr and sgs3 with bluetooth 4.0

Hi!
I'm under Omega 9.1 - XXBLG1 and I have a "wahoo fitness blue hr" (it's a heart rate belt) and it works perfectly with a iPhone 4S. Happy to know?
The thing is that this wahoo should work on android too with apps such as Runtastic or Endomondo. Of course, I'm here 'cause it doesn't.
After a scann, the phone finds my headset, but not my wahoo...
Anybody successfully connected any bluetooth 4.0 item with sgs3? Any idea why it doesn't work with mine?
NB : I heard about some "secret codes" to put in the dialler like *#232331# , but it didn't work as well.
Thank you for any clue!

dspot.sd said:
Hi!
The thing is that this wahoo should work on android too with apps such as Runtastic or Endomondo.
Click to expand...
Click to collapse
Where did you get this information? AFAIK the Wahoo-Belts only work with iphones.
You can check the compatibility at: http://www.wahoofitness.com/Products/Wahoo-Fitness-Wahoo-Blue-HR-Heart-Rate-Strap-for-iPhone-4S.asp
Greets,
Georg

Where did you get this information?
Click to expand...
Click to collapse
Hi and thanks for the reply.
In the blog of that site (sorry, I'm not yet able to make a proper link but if you write
Code:
Q & A: Wahoo Fitness Blue HR Bluetooth Smart Heart Rate Strap for iPhone 4S
in google, it should be the second link ) it's written on 1/21/2012 :
Will it work with my iPhone 4?
Nope. The Wahoo Blue HR ONLY works with the iPhone 4S right now, but in the future it will work with other “Bluetooth Smart Ready” devices. Rumor is that the next several generations of iPhones and Android devices will all have Bluetooth Smart wireless technology integrated. This product will NOT work with the iPhone 3, 3GS, or 4.
Click to expand...
Click to collapse
So you're right, I reed nowhere that it works on the SGS3, but it should 'cause the technology Bluetooth Smart Ready is a standard... no? (maybe I'm wrong)

dspot.sd said:
Hi and thanks for the reply.
In the blog of that site (sorry, I'm not yet able to make a proper link but if you write
Code:
Q & A: Wahoo Fitness Blue HR Bluetooth Smart Heart Rate Strap for iPhone 4S
in google, it should be the second link ) it's written on 1/21/2012 :
So you're right, I reed nowhere that it works on the SGS3, but it should 'cause the technology Bluetooth Smart Ready is a standard... no? (maybe I'm wrong)
Click to expand...
Click to collapse
I was looking into wahoo products myself, specifically their Cadence Sensor. I have emailed them regarding compatibility with Android phones with BT 4.0, waiting for their reply.
If you're looking for a heart rate monitor to use with the GS3, this one made by Polar works great
http://www.polar.fi/en/products/accessories/Polar_WearLink_transmitter_with_Bluetooth
There are two BT HR Monitors made by Polar, make sure you get the NON H7 Model. The H7 model only works with iPhones
---------- Post added at 09:15 AM ---------- Previous post was at 09:13 AM ----------
And right after I posted my last comment, I received this email from Wahoo
"Hi,
I'm sorry we do not offer Android support as of yet. Android has not yet opened up their API to allow for access to the Bluetooth 4.0 sensor in the phone. Once they do we will begin working on it and allowing our app partners to do the same.
Thanks!
Sean
Wahoo Fitness
--
Wahoo Fitness
www.wahoofitness.com"
So according to them, it's Google not releasing their API for Bluetooth 4.0?

@kman79 : Thank you a lot for the research you did and for your sharing. Because I already have that sensor, I didn't even check if concurrence had something else.
By the way, even if they clam that they do not have the API for bluetooth ( what is not true, 'cause a search in Google with "android bluetooth api" gives you the command... now maybe it is some different for bluetooth 4.0... ), the sgs3 should at least detect the device even if the apps cannot use it (like a PC). But the sgs3 doesn't see the device... and if Wahoo would have the API for bluetooth 4.0, I really don't know how they will manage to make sgs3 recognize the device. I'm really septic for the future of this topic.
Thanks a lot for the search about alternatives for my Wahoo, I will probably check if.

to the best of my knowledge wahoo is NOT BT4 they are ANT+ which is a variation (proprietary variation) of BT4 IIRC
so no the SG3 won't see it.

dspot.sd said:
@kman79 : Thank you a lot for the research you did and for your sharing. Because I already have that sensor, I didn't even check if concurrence had something else.
By the way, even if they clam that they do not have the API for bluetooth ( what is not true, 'cause a search in Google with "android bluetooth api" gives you the command... now maybe it is some different for bluetooth 4.0... ), the sgs3 should at least detect the device even if the apps cannot use it (like a PC). But the sgs3 doesn't see the device... and if Wahoo would have the API for bluetooth 4.0, I really don't know how they will manage to make sgs3 recognize the device. I'm really septic for the future of this topic.
Thanks a lot for the search about alternatives for my Wahoo, I will probably check if.
Click to expand...
Click to collapse
What makes me angry is that i downloaded the app Bluetooth Smart Scanner and it shows my Polar H7 on the list but other apps can't see it. GRR!

nerys71 said:
to the best of my knowledge wahoo is NOT BT4 they are ANT+ which is a variation (proprietary variation) of BT4 IIRC
so no the SG3 won't see it.
Click to expand...
Click to collapse
this in incorrect. there are both ant+ wahoo sensors, and the new blue SC sensors which are bluetooth 4.0 smart devices. from all my reading, there is not yet any applications that can read the data due to supposedly google not releasing the bluetooth 4.0 api; this really doesn't seem to make much sense, but ok. there is a new app out for android that appears to recognize bluetooth 4.0 devices, no one has yet to report if it works for more than just pairing and will provide sensor data to apps.
https://play.google.com/store/apps/details?id=com.nordic.nordicbleapp#?t=W10
start this to show importance to google; does look like support is planned, just not here yet.
http://code.google.com/p/android/issues/detail?id=33371

Check out this bt4 heart rate monitor site
http://beetsblu.com/apps/google-play/
Edit, same app as posted above

the reason the wahoo blue doesn't work is because the android version isn't coded to accept bluetooth 4.0 devices since they consider that only 2 android devices out there can do bt4.0 so they are too lazy to implement it.
i ended up getting the Zephyr HxM to pair with Endomondo for my workouts and such.

I'm looking for a speed and cadence sensor. No good solution until Bluetooth 4.0 ble support is added.
from my E3D

mputtr said:
the reason the wahoo blue doesn't work is because the android version isn't coded to accept bluetooth 4.0 devices since they consider that only 2 android devices out there can do bt4.0 so they are too lazy to implement it.
i ended up getting the Zephyr HxM to pair with Endomondo for my workouts and such.
Click to expand...
Click to collapse
Since I Sold my iphone 5 .I keept my wahoo HR .
Today I bought my galaxy s4.
The wahoo does not connect with.

I inquired about this a while back.This is what they told me:
10/2/12
to support
Do you plan on making Wahoo Bluetooth 4.0 devices available for Android? There are a number of BT4.0 Android phones on the market now (including the best selling phone right now, the Galaxy S III) and many more to come in the near future. It seems like it would make good business sense to stop ignoring such a large customer base and BT seems like a great opportunity.
Wahoo Fitness <[email protected]>
10/3/12
to me
Hi ,
due to the Android operating system's lack of BTLE developer support we are being forced to use individual phone manufacturers APIs to allow our products to work with the phones. Currently we are working on a Galaxy S3 implementation for our Blue HR and Blue SC and should have a solution by the end of the year.
Sean
Wahoo Fitness
Click to expand...
Click to collapse
They obviously missed the end of the year mark.... Though, I think Google just announced that Android 4.3 would have native support for BTLE.
I personally opted for the Suunto Move Stick Mini (ANT+ USB stick) connected with an OTG cable. It works pretty well, the only problem is the micro usb connection being so small that its not very stable. You need to find a way to keep the cable firmly plugged in. I use the app IpBike (which also works for running). Somewhere on these forums I also posted how to hack Endomondo to support ANT USB sticks.

mputtr said:
the reason the wahoo blue doesn't work is because the android version isn't coded to accept bluetooth 4.0 devices since they consider that only 2 android devices out there can do bt4.0 so they are too lazy to implement it.
i ended up getting the Zephyr HxM to pair with Endomondo for my workouts and such.
Click to expand...
Click to collapse
well, the 4.3 android update seemed to change things. Wahoo just paired (at least once, it is not perfect) with BLE heart rate monitor app.
This thread was one of the top search results for "Nexus 4 bluetooth smart wahoo". Cant say I recomend Wahoo on android, i am having problems. But i saw it work at least twice so far.

thenightisdark said:
well, the 4.3 android update seemed to change things. Wahoo just paired (at least once, it is not perfect) with BLE heart rate monitor app.
This thread was one of the top search results for "Nexus 4 bluetooth smart wahoo". Cant say I recomend Wahoo on android, i am having problems. But i saw it work at least twice so far.
Click to expand...
Click to collapse
yes, it changes things.. i knew 4.3 is supposed to support btle out of the box.
and it is kinda weird that a nexus 4 search brings you to a s3 thread. XD
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[Q] Bluetooth 4.0 on Galaxy Note II

Anyone tried to connect via bluetooth v4.0 to any accessory?
I am trying to connect to a Polar H7 Bluetooth Low Power Heart Rate Monitor with a Samsung S3 with no luck.
Just curious if with a Note II it works?
Thanks

No problems here. But my accessories have been audio. You should check with the cuff vendors to see which profiles/services it needs. If they're pretty standard and in the gn2 stack, they may be able to guide you more.
-----
I would love to help you, but help yourself first: ask a better question
http://www.catb.org/~esr/faqs/smart-questions.html

But your accessories are also Bluetooth V4.0 Low Energy?

Not necessarily. I use headphones and car stereos.
Each bluetooth version has a specific set of services it adds on from the prior version. When a product uses bluetooth it may choose to use all or only some of the services. What you want to find out is what services your monitor uses. For instance, it may not need A2DP, which are audio services, or HSP handsets.
http://en.m.wikipedia.org/wiki/Bluetooth_profile
That link happens to mention low energy requirements.
Once you know the profiles it uses, you can check what the gn2 supports.
I don't know enough about your monitor to be able to help you more. I would suspect the manufacturer of your monitor could help more.
I don't know where you live, but you could try taking it in to the store and attempt to connect it. Ask the salesperson for help.
http://m.samsung.com/uk/consumer/mobile-devices/galaxy-note/galaxy-note/GT-N7100RWDBTU
That does show it supports LE, which I assume is low energy.
-----
I would love to help you, but help yourself first: ask a better question
http://www.catb.org/~esr/faqs/smart-questions.html

fae said:
Anyone tried to connect via bluetooth v4.0 to any accessory?
I am trying to connect to a Polar H7 Bluetooth Low Power Heart Rate Monitor with a Samsung S3 with no luck.
Just curious if with a Note II it works?
Thanks
Click to expand...
Click to collapse
Bit late answer but..
The HR7 is a BLE device and the Note II is a BLE capable device.
However since Google failed to put a proper Bluetooth stack for BLE in it it won't work.
There are some apps in the market that use some kind of samsung library to show that you can actually see the device .
But these work very spotty, i know since i have both the hr7 and the noteii.
And although i can get it to appear in connections dialog windows i have only been able to use it once.
Search the forums for SGIII and BLE you'll find more info.

The bluetooth stack problem is there. Google has not kept the same stack for all versions and also incomplete. AFAIK I think they have changed to broadcom BT stack for 4.1/4.2 and its still incomplete. So maybe at a later version compatibility with all devices will be there.
as of now you could pair unpair a few times. Maybe that might work.

Yes, as far as I know there is not yet any firmware version with a workable ble stack. Keep waiting... meanwhile my Polar H7 heart rate band may become obsolete with the waiting shame on samsung.

connected all my bt devices without any problem..check the settings of ur bt device..

I can also connected all my bt devices without any problem, except those that are Bluetooth version 4.0... like my Polar H7 chest band.

fae said:
I can also connected all my bt devices without any problem, except those that are Bluetooth version 4.0... like my Polar H7 chest band.
Click to expand...
Click to collapse
one more here... the same thing...

Bose dock 10 or something like that
Sent from my GT-N7100 using xda app-developers app

I have this problem too. I didn't realise I would even need to look into if it would be compatible. I thought the whole point of Bluetooth was it was standard!
So, is this something we can expect to work in the future, or should I just send it back to Amazon?
Can anyone recommend a Heart Rate monitor that will work?

AndyCr15 said:
Can anyone recommend a Heart Rate monitor that will work?
Click to expand...
Click to collapse
Zephyr HxM.
Regards,
Dave
Sent from my GT-N7100 using Tapatalk 2

Thanks, that's what I'm looking for. Generally seem to be around £80

The same for me...
But you can also buy the other polar bluetooth hr monitor (the non smart (stupid?) one)
Same price but poor battery life...
Envoyé depuis mon GT-N7100 avec Tapatalk

Do you know what the model name of the 'stupid' one that works is?

AW: [Q] Bluetooth 4.0 on Galaxy Note II
AndyCr15 said:
Do you know what the model name of the 'stupid' one that works is?
Click to expand...
Click to collapse
Polar WearLink+ BT
Sent from my GT-N7100 using xda app-developers app

I couldn't get the Polar H7 Smart heart rate monitor working on the Note 2 with any of the sports apps in the Play Store. Bluetooth low energy (also called Smart) does not appear to be supported on the Note 2. I've decided to order the Zephyr HxM and will be giving that a try on Saturday as an alternative approach. It uses standard Bluetooth and should work. I'm keeping the Polar H7 hoping that later in the year when Android 5 is released we will get working Bluetooth Low Energy (Smart) support. The Samsung site is very misleading and states Bluetooth 4.0 LE support as a feature on the phone. It does not work. There is an app in the Play Store called Smart Scanner that can use the HW in the Note 2 to see the Polar H7 ... it just can not do anything more with it. So the HW is functional; it just lacks Android OS support.
If anyone figures out how to get BLE (ie. Bluetooth Low Energy or Smart) devices working on the Note 2, please post your solution.

UCSB said:
I couldn't get the Polar H7 Smart heart rate monitor working on the Note 2 with any of the sports apps in the Play Store. Bluetooth low energy (also called Smart) does not appear to be supported on the Note 2. I've decided to order the Zephyr HxM and will be giving that a try on Saturday as an alternative approach. It uses standard Bluetooth and should work. I'm keeping the Polar H7 hoping that later in the year when Android 5 is released we will get working Bluetooth Low Energy (Smart) support. The Samsung site is very misleading and states Bluetooth 4.0 LE support as a feature on the phone. It does not work. There is an app in the Play Store called Smart Scanner that can use the HW in the Note 2 to see the Polar H7 ... it just can not do anything more with it. So the HW is functional; it just lacks Android OS support.
If anyone figures out how to get BLE (ie. Bluetooth Low Energy or Smart) devices working on the Note 2, please post your solution.
Click to expand...
Click to collapse
Nice summary! :good:
I came to the same conclusion!

Thanks ... I should have also mentioned that when the Samsung Galaxy S 4 was recently announced it seemed to have support for some sports / health apps and gadgets. I was wondering if they were Bluetooth 4.0 LE based. If so, that would lead me to believe that Samsung must have a working Bluetooth 4.0 LE (Smart) patch for the version of Android the phone is going to launch with ... this might mean that there may be some hope for a fix for the Note 2. I'm just speculating here ... but, hoping that Samsung will fix this problem.

ReSound hearing aid connected to phone

Hi,
I do have a hearing aid (ReSound) and want to connect it to the phone using the ReSound app (via Bluetooth).
Has anyone here already done this? I read about connecting the hearing aid to the phone and it seems there may be problems with Android phones.
AFAIK connecting the ReSound hearing aid to a iPhone 5/5C/5S works like a charm (hearing the phone calls via the hearing aid - like a Bluetooth headset) but not with Android as there is one of the Bluetooth profiles missing in Android that is needed for the connection.
Can anyone confirm, that connecting the ReSound hearing aid to an Android phone (preferably the HTC ONE M8 as I alread own one) works?
(Sorry for my bad English - it's not my mother tongue.)
Thanks!
Chris

According to Mohammed Qasim Shiraz the UK product manager for GN ReSound - http://www.techradar.com/news/phone...phones-are-supercharging-hearing-aids-1260865
"Building the connectivity into iPhones and iPads needed direct work with Apple, and while phones like the Galaxy S5 have the necessary compatibility, Shiraz said it wasn't that simple, although admitted that owners of popular Android phones might be able to use the LiNX in the future too:
The biggest struggle with Android is the platforms they operate on. iOS is one platform, but with Android we're looking at over 1200 platforms."
Apparently Bluetooth 4 is only part of the connection equation and Apple/Linx have worked out a proprietary feature that only works with the iPhone. Looks like until HTC? or Samsung? decide they want to add hearing aid compatability we androidians won't be connecting without an intermediate device.

Currently looking into doing this setting the thread is a couple years old hoping maybe something change Resound LiNX2 9 with Samsung s6

Resound LINX2 works with Android now. Officially on Resound.com (http://www.resound.com/en-US/compatibility) only listed Samsung brand, but it seems that it works with all Android version higher than ver 4. I'm using LG V10 (Android 6.00) and it works fine. However, the app only allows to change environment (preprogrammed when the HA is set up), adjust volume on the left and right hearing aids. Streaming is only applicable to iOS, for Android a $300 Resound Unite Phone Clip+
From Resound Q&A
Can I stream audio directly from the Android phone?
A: The technology in Android phones do not currently support direct streaming of audio to the hearing aid. Android users are encouraged to utilize the ReSound Unite Phone Clip+ for this enhanced set of streaming capabilities to their ReSound hearing aid.

Can we somehow solve the streaming issue? Obviously android phones can connect now, but just needs to be detected as a streaming device.

DAC advantage besides built in speakers/headphones?

It's nice to see HTC did an effort to enhance sound, but is there any advantage with the M10 when using chromecast or bluetooth to stream audio?

HTC's also always sound the best over bluetooth. Historically, they were one of the only ones that supported apt-x. I dont know if the 10 is compatible with apt-x HD now.. But I'm assuming it is, as thats 24-bit streaming.

Is there any scenario in wich the phones hardware will influence the sound quality when casting to or via chromecast audio ?

I'm also curious how Bluetooth audio quality is on the 10
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This review just show up
http://www.engadget.com/2016/04/14/htc-10-review/

Boneslammer said:
Is there any scenario in wich the phones hardware will influence the sound quality when casting to or via chromecast audio ?
Click to expand...
Click to collapse
No, as the chromecast is doing the work.