Develop Bugs

Stereo audio recording - Is it possible?

I believe our phone has 2 microphones on the top and bottom of the phone, so what's stopping us from recording stereo audio? Is it something samsung just left out, or is there a hardware limitation?
Could this possibly be added with a software mod?

yousefak said:
I believe our phone has 2 microphones on the top and bottom of the phone, so what's stopping us from recording stereo audio? Is it something samsung just left out, or is there a hardware limitation?
Could this possibly be added with a software mod?
Click to expand...
Click to collapse
I tried to find information on the matter, I even ask In the forums and nobody seems to care that their sprint galaxy s3 is defective.... man this suck, no stereo recording? jeez

ReverseSorrow said:
I tried to find information on this , I even ask In the forums and nobody seems to care that their sprint galaxy s3 is defective.... man this sucks, no stereo recording? jeez
Click to expand...
Click to collapse
Agreed. Why is this getting no attention? I've spent over an hour researching this and found countless mentions of the international S3 recording stereo audio when recording video. I have tried numerous apps and tested every factory option to get stereo recording and nothing works. I've also read that the other mic is for noise reduction. So what's the deal? Can anyone shed any light on this?

Could it be because of different processor and audio chips?
Sent from my SGH-T999 using xda premium

Just did some more tests. The mic on the top of the phone acts as the mic for both front and rear camera video. When using the stock record audio app the bottom mic is used. Clearly both mics can be used. I guess we'll just have to wait for someone to make a stereo record app since it's clearly possible.

So do any of the xda devs that we all love so dearly want to take a crack at this? Recording audio in stereo would just be tits! Sorry, couldn't help myself!

Samsung Galaxy records sstereo to Video and audio apps can too
I am not a developer but i hope this helps.
When I record a video with the phone held horizontally (the top mic is right and the bottom mic is left. I was so surprised the first time I heard something that had depth. But I couldnt dupllicate it using the Vmemo or any of the other apps. I got kucky one day when recording video with headphones in. The instant play revealed a stereo audio recording when video recording. AWESOME.....
PART II
There is an aoo called Recforge that allows the user to set the device (Mine is Samsung Galaxy S3) to record .wav or .ogg or .mp3. (First app I've seen that recognizes and manipulates .wav files), The user can set the sample rate up to 48kHz. And lastly, The recording can be switched to Stereo (Native) mode. It works great !!!!!
Hope this is helpful. Perhaps one of you is the developer for RecForge.
I love the app. I am a musician and I hate mono recordings done with AGC.(Yes RecForge let's you turn that crap off too)
Good luck.

xdasochs said:
I am not a developer but i hope this helps.
When I record a video with the phone held horizontally (the top mic is right and the bottom mic is left. I was so surprised the first time I heard something that had depth. But I couldnt dupllicate it using the Vmemo or any of the other apps. I got kucky one day when recording video with headphones in. The instant play revealed a stereo audio recording when video recording. AWESOME.....
PART II
There is an aoo called Recforge that allows the user to set the device (Mine is Samsung Galaxy S3) to record .wav or .ogg or .mp3. (First app I've seen that recognizes and manipulates .wav files), The user can set the sample rate up to 48kHz. And lastly, The recording can be switched to Stereo (Native) mode. It works great !!!!!
Hope this is helpful. Perhaps one of you is the developer for RecForge.
I love the app. I am a musician and I hate mono recordings done with AGC.(Yes RecForge let's you turn that crap off too)
Good luck.
Click to expand...
Click to collapse
Not helped.

In CM stereo work fine, problem in stock ROM only

Unfortunately, RecForge doesn't record mp3 or whatever compressed format on-the-fly. Instead, you have to wait at the end of every recording while the phone converts the file to the compressed format you want. That's very inconvenient. Recently, I tried Hi-Q mp3 dictaphone, but this one records in mono only, and the newest version is limited to ridiculous 4 seconds of compressed recording. According to the fact being so unlucky to find a suitable app anywhere, here my 'wishlist':
-recording of compressed audio on-the-fly with at least 128kbit/s bitrate and 44.1kHz sample rate, no recompressing at the end of recordings
-recording in stereo
-display for input sound level would be nice (e.g. vu-meter)
-small app
-free, if possible
Zoli

any news?

If a dev could please have some input on this, it would be much appreciated. I'm curious about this too. I'm using a custom rom(GalaxySfre3) and it also has this problem. I recently made the observation of the 2 mics. Both useable, but not simultaneously. I might try CM, don't know if that guy is saying stereo recording works or if just recording works on it. If anyone has the time to check and confirm if other roms support it, I'd appreciate it!
Sent from my SPH-L710 using xda app-developers app

i_guana said:
Agreed. Why is this getting no attention? I've spent over an hour researching this and found countless mentions of the international S3 recording stereo audio when recording video. I have tried numerous apps and tested every factory option to get stereo recording and nothing works. I've also read that the other mic is for noise reduction. So what's the deal? Can anyone shed any light on this?
Click to expand...
Click to collapse
My phone records in stereo. But I can't tell you how because xda's rules prohibit such discussion
Sent from my SPH-I710 using xda premium

xblackvalorx said:
My phone records in stereo. But I can't tell you how because xda's rules prohibit such discussion
Sent from my SPH-I710 using xda premium
Click to expand...
Click to collapse
I'm trying to think of which rule that would be violated. I can't tell, so I'm going to say it's the one about Personal Attacks.

xblackvalorx said:
My phone records in stereo. But I can't tell you how because xda's rules prohibit such discussion
Sent from my SPH-I710 using xda premium
Click to expand...
Click to collapse
So your suggesting it isn't anything to do with ROM compatibility, and in order for it to work, there's things xda has prohibited discussion that are necessary. I honestly don't have a clue for what it is, but if a moderator could just confirm if this is true then I don't think anyone would persist with this. Including myself, although I'm positive it could just be a kernal tweak that gets it working. I don't know much about tweaking the kernal so I'd rather leave it up to someone who knows what they're doing.
Sent from my SPH-L710 using xda app-developers app

ironman120693 said:
So your suggesting it isn't anything to do with ROM compatibility, and in order for it to work, there's things xda has prohibited discussion that are necessary. I honestly don't have a clue for what it is, but if a moderator could just confirm if this is true then I don't think anyone would persist with this. Including myself, although I'm positive it could just be a kernal tweak that gets it working. I don't know much about tweaking the kernal so I'd rather leave it up to someone who knows what they're doing.
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
It's a kernel that isn't supposed to be discussed within xda.
It's a sad thing to have to happen but it helps keep drama down
Sent from my SPH-I710 using xda premium

RecForge does mp3 on the fly
Zoli1972 said:
Unfortunately, RecForge doesn't record mp3 or whatever compressed format on-the-fly. Instead, you have to wait at the end of every recording while the phone converts the file to the compressed format you want. That's very inconvenient. Recently, I tried Hi-Q mp3 dictaphone, but this one records in mono only, and the newest version is limited to ridiculous 4 seconds of compressed recording. According to the fact being so unlucky to find a suitable app anywhere, here my 'wishlist':
-recording of compressed audio on-the-fly with at least 128kbit/s bitrate and 44.1kHz sample rate, no recompressing at the end of recordings
-recording in stereo
-display for input sound level would be nice (e.g. vu-meter)
-small app
-free, if possible
Zoli
Click to expand...
Click to collapse
RecForge records in mp3 on the fly too. The free version pauses recording (in mp3 and ogg not wav) every 3 min which can be resumed.
May be at the time of your writing this feature was not available.

Possible
fantomaster said:
any news?
Click to expand...
Click to collapse
RecForge does record in stereo mode. It records in mp3/wav/ogg and is perhaps most feature rich audio recorder for Android. The free version pauses mp3 and ogg format recording every 3 min which can be resumed. So either one can buy paid version or record in wav and later convert to mp3.
Another app capable of stereo recording is Easy Voice Recorder Pro (Paid version only, free version does not). But it is more costly than RecForge and have less features too.

Hi,
I'm the developper of RecForge.
xdasochs said:
I am not a developer but i hope this helps.
When I record a video with the phone held horizontally (the top mic is right and the bottom mic is left. I was so surprised the first time I heard something that had depth. But I couldnt dupllicate it using the Vmemo or any of the other apps. I got kucky one day when recording video with headphones in. The instant play revealed a stereo audio recording when video recording. AWESOME.....
PART II
There is an aoo called Recforge that allows the user to set the device (Mine is Samsung Galaxy S3) to record .wav or .ogg or .mp3. (First app I've seen that recognizes and manipulates .wav files), The user can set the sample rate up to 48kHz. And lastly, The recording can be switched to Stereo (Native) mode. It works great !!!!!
Hope this is helpful. Perhaps one of you is the developer for RecForge.
I love the app. I am a musician and I hate mono recordings done with AGC.(Yes RecForge let's you turn that crap off too)
Good luck.
Click to expand...
Click to collapse
Thank you
Zoli1972 said:
Unfortunately, RecForge doesn't record mp3 or whatever compressed format on-the-fly. Instead, you have to wait at the end of every recording while the phone converts the file to the compressed format you want. That's very inconvenient. Recently, I tried Hi-Q mp3 dictaphone, but this one records in mono only, and the newest version is limited to ridiculous 4 seconds of compressed recording. According to the fact being so unlucky to find a suitable app anywhere, here my 'wishlist':
-recording of compressed audio on-the-fly with at least 128kbit/s bitrate and 44.1kHz sample rate, no recompressing at the end of recordings
-recording in stereo
-display for input sound level would be nice (e.g. vu-meter)
-small app
-free, if possible
Zoli
Click to expand...
Click to collapse
It can record and encode to mp3, ogg ... in real time, just go in the settings and choose your favorite format.
ePandit said:
RecForge does record in stereo mode. It records in mp3/wav/ogg and is perhaps most feature rich audio recorder for Android. The free version pauses mp3 and ogg format recording every 3 min which can be resumed. So either one can buy paid version or record in wav and later convert to mp3.
Another app capable of stereo recording is Easy Voice Recorder Pro (Paid version only, free version does not). But it is more costly than RecForge and have less features too.
Click to expand...
Click to collapse
Thanks
For the stereo recording, I tried to improve options and features in RecForge II
It's in beta for the moment, but I think we're almost in a stable release. You can get it here : https://play.google.com/store/apps/details?id=dje073.android.modernrecforge
To record in stereo, you will have to :
- Select "Audio Record -> Stereo (native)"
- Select the “Source -> Front microphone”
- No disabling of the AGC”
PS : this may not be visible in preview mod waveform, but it should work in recording mod
It doesn't work on all devices, I tried to establish a list of working devices here : https://dl.dropboxusercontent.com/u/58769997/RecForgeII/html/faq.html (page in construction).
If you have more informations so I can fill this page, thanks in advance.

CM9 Beta 1 audio problem

well having this audio problem in Alpha8 hearing static like or gunfire but a little and in Beta1 got worse ((or only me?))
ok you can test the audio problem when you play Agent Dash
when you set your audio to full while playing the game you can hear is static like
(gunfire,sometimes no sound,and soldier marching ??)..
can someone test this?
download the agent dash game and set your audio to full..
if your having audio problem w/ me then its a game audio BUG or CM9??
but if you set it to low volume the sound goes to normal but its weak
sorry if you don't understand very well my english sucks..

did you change the DSP Manager Settings? that could be your problem..
OR
- delete dsp manager on /system/app
- delete the DSP's lib on /system/lib/soundfx
- reboot

Well in my case....i have clear audio while playing videos through mx player...music player gives beautiful music with beats while connected through 3.5mm sg tab hands free... but gives some poor quality while playing on speaker...i dont know...it might be problem with cm9...in rebel rom...music was perfect without any changing in dsp manager....but now music on speaker is not good...i dont know..i have not edited dsp manager...it is set as default...could somebody help me...???
Sent from my GT-I8150 using xda premium

I had the same problem with you. I hope arco fix that on beta 2
Sent from my GT-I8150 using xda premium

is it ok to delete the lib/soundfx??
cause i already delete it
and i forgot to backup LOL
well its not important (for me cause im testing all ROMS here hehe)
but the problem is still exist >.<
hope beta 2 got audio fix because CM9 is so stable except audio (for me)
reverting to GB,,,

droidgeo17 said:
is it ok to delete the lib/soundfx??
cause i already delete it
and i forgot to backup LOL
well its not important (for me cause im testing all ROMS here hehe)
but the problem is still exist >.<
hope beta 2 got audio fix because CM9 is so stable except audio (for me)
reverting to GB,,,
Click to expand...
Click to collapse
+1
Sent from my GT-I8150 using xda premium

beta 2
droidgeo17 said:
is it ok to delete the lib/soundfx??
cause i already delete it
and i forgot to backup LOL
well its not important (for me cause im testing all ROMS here hehe)
but the problem is still exist >.<
hope beta 2 got audio fix because CM9 is so stable except audio (for me)
reverting to GB,,,
Click to expand...
Click to collapse
cm9 2 audio works good

I don't have that problem, cm9 is just working flawless
soeey for bad english

[Mod] [Theme] [LS8, LSD, LSE, MS1] Inverted HW Equalizer FX (MusicFX based)

Hi
Samsung roms comes with a system app named MusicFX. This app is the core app for the built in 5 band equalizer and effects. The only problem is that the app does not have a user interface, so without a music player that can make use of MusicFX, it is pretty much useless.. There are many equalizer apps on google play, but non of them works on Sammy JB. I've tested many of them, until I came across a free app called Equalizer FX:
https://play.google.com/store/apps/details?id=com.devdnua.equalizer.free&feature=search_result
Of course this app did not work on Sammy JB either (and did not work well on ICS because many music players did not support it, so it only worked if you use it to play single file at a time). However, after de-compiling thus app, I noticed that it has very similar code to the MusicFX system app from Sammy JB (XWLSD build). So I decided to make an experiment and replaced the similar smali files of Eq FX by the ones from Our MusicFX (LSD). After trial and error and some label renaming and modifications, I got it to work on our JB.
Moreover, I also inverted the app with cool JB reloaded blue theme and I disabled the built in ad banner (Since this app is now only compatible with Sammy JB roms, I'm guessing this ad blocking does not violates forum rules.. If Mods think otherwise, just let me know and I will replace it with a version that includes ads just like the Google play free versions. Note that this modded app uses the free version package).
The app is signed so you may install it as any other app.
I tested it with many music players including default and poweramp and it works. I also tested it with voice call from speaker and it is working.
Here is the link to download:
https://dl.dropbox.com/u/58987384/EqualizerFX_Mod.apk
Install then go to settings - music effects and select Equalizer FX.
Next I will try to mod it further so it will have separate profiles for headphones, speaker and Bluetooth (currently I'm trying to figure how to do it by looking at the code of AwesomeBeats that has this functionality)
Enjoy and let me know if it works (state the version of your rom. Guaranteed to work on XWLSD).
Credits:
devdnua for original Equalizer FX app (v1.3.1 free)
Features:
* Works independently (regardless of the player used. for Poweramp you'll need to disable audio direct access)
* 5 band equalizer (using build in HW eq of onboard Soundchip)
* Bass boost
* All available MusicFX profiles
* Can add new user profiles
* Virtualization
* Black Blue JB theme
* Ad free

Nice work bro!

Working grate! Good job

Chameleon Rom(LS8) and Latest Poweramp(feature using MusicFX directly added)
Works fine.
The range of frequency in hearing is little bit different from other apps like this(Equalizer via Smart Android Apps, etc...) but it is just my noobynish about the difference.
Thanx a lot mate
I'll use this few days more to test about the bug others have(going back all EQ band into 0 for few seconds).
Can you adopt the opinion or idea? I have some and these maybe cool...
1. Backing up my EQ value which I set through syncing my google account(to backup my settings much safe and apply any devices I use)
2. Add methods for adjusting EQ with type numbers with keyboard apps or toggle + and - ( too hard to set the values through dragging on touch )

marbulas said:
Chameleon Rom(LS8) and Latest Poweramp(feature using MusicFX directly added)
Works fine.
The range of frequency in hearing is little bit different from other apps like this(Equalizer via Smart Android Apps, etc...) but it is just my noobynish about the difference.
Thanx a lot mate
I'll use this few days more to test about the bug others have(going back all EQ band into 0 for few seconds).
Can you adopt the opinion or idea? I have some and these maybe cool...
1. Backing up my EQ value which I set through syncing my google account(to backup my settings much safe and apply any devices I use)
2. Add methods for adjusting EQ with type numbers with keyboard apps or toggle + and - ( too hard to set the values through dragging on touch )
Click to expand...
Click to collapse
As for the range, this eq make use of the internal hardware DSP controlled by the MusicFX engine. It turns out that the equalizer built in is not a graphic eq, but rather a parametric eq. This means when you boost one slide, you are actually boosting or attenuating entire frequency band, who's center frequency is the freq of the slide being boosted. i.e the 14kHz slide will affect an entire band ranging from ~8khz up to 18khz..
As for the slide adjust sensitivity, I agree, it is a little jumpy.. But this is how the original app dev made the UI. Its gonna take me some time to develop my dev skills to be able to do some advance modding. i was only lucky to notice that the original app is nothing but a UI made for MusicFX.apk, that includes it's own MusicFX taken from AOSP rom (this is why the original app did not work for Sammy JB). I only replaced the lines of code for the old musicFX with ones taked from new Sammy JB rom and of course I also changed the app theme.
I'm currently working on an AIO audio mod for JB that will combine AC!D audio + Beats + Xloud + Alsa + ClearAudio in one working CWM mod.

EB10000 said:
I'm currently working on an AIO audio mod for JB that will combine AC!D audio + Beats + Xloud + Alsa + ClearAudio in one working CWM mod.
Click to expand...
Click to collapse
M8, that sounds really awesome as the original AC!D 7.0 is a bit buggy on SGS2 based on Sammy JB.
I would defenitely try it when you release the pack
Sent from my SHW-M250K using xda premium

working gr8
Sent from my GT-I9100 using xda premium

I used it few days more...
So amazing! Others have a specified same bug(EQs turn off about a couple of seconds) but this is not.
I think this app is the only flawless and the best EQ app

I'll definitely give this a try, I've always like noozyoxide rewire but for some reason I can download it on my s2.
This one seems promising considering it works with the hw.
Sent from my Nexus 7 using Tapatalk 2

Is there any way to get rid of the notification?
Sent from my GT-I9100 using Tapatalk 2

Spacemonkie4207 said:
Is there any way to get rid of the notification?
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
I can remove it permanently by a mod, but I don't think most people will like it this way.. You can easily access the eq this way. However, if you're on new JB rom, you can turn off notifications from settings - applications for this app

works fine on Captivate I897 with Xylon JB rom
any possibility to incorporate SRS mod(i-wow)?
thanks for the app.

I'll give this a try. Looking forward for your next project!

Hi guys! My name Dmitry. I am CEO of devdnua and developer of Equalizer FX
EB10000, good job! I would ask you what did you do to got it work on JB? I have few devices and on it works on all devices well.
I will be grateful if you tell me what you have fixed.

[Q] Low bitrate over bluetooth with CyanogenMod?

I notice a distinct crackling when using my bluetooth stereo in my car with my Nitro (with the latest stable CyanogenMod ROM,) the kind you hear from a low bitrate audio file. I read that usually, this is because the bitpool of the bluetooth function is limited to 32, and should be set above 44. The few threads I read said that CM fixed this, but it doesn't appear to be working in this ROM.
Can I verify the size of the bitpool? Is there a file where I can edit it myself?

keboose said:
I notice a distinct crackling when using my bluetooth stereo in my car with my Nitro (with the latest stable CyanogenMod ROM,) the kind you hear from a low bitrate audio file. I read that usually, this is because the bitpool of the bluetooth function is limited to 32, and should be set above 44. The few threads I read said that CM fixed this, but it doesn't appear to be working in this ROM.
Can I verify the size of the bitpool? Is there a file where I can edit it myself?
Click to expand...
Click to collapse
my only suggestion is to switch rom's i had nothing but problems with cm10.1 and i ran it for over 3 months, i had problems with rc's when i installed the stable release i had 3 issues within an hour, one random reboot one f/c and display problems.
in the course of the time i had about 6-7 nightlies that didn't even boot...
i'm running liquid nitro v2 with my 4.1 UI mod and i'm happier than i ever was on cm. i use pocket skip track for screen off song change, widget locker to replace stock lockscreen, i use my custom UI to fix the status bar (links on nitro tnt thread) i use power toggles for reboot menu (recovery/download) and airdroid for screenshots. apex launcher gives you jelly bean launcher options.
i run all that on v20f and i basically have all the features of cm10.1 except on a 100% stable rom that doesn't take away my ability to use MHL and 1080p recording.
use mx camera to get your HDR camera feature. if there is any i missed let me know, but frankly i don't miss CM at all, easily replaceable.
i also get far better battery life today i left for work at 7am my phone was 60% i got home at 6:30 pm it was 15% and i had some decent screen usage on breaks and during lunch etc, with cyanogenmod my phone would have died around 1-2pm

Yes, the constant resetting is getting annoying, in particular the YouTube app causes it often. so Liquid Nitro doesn't do that?
I will gladly switch to LN, if you can confirm that this bitpool problem is addressed (no need to go resetting my phone for nothing!)

keboose said:
Yes, the constant resetting is getting annoying, in particular the YouTube app causes it often. so Liquid Nitro doesn't do that?
I will gladly switch to LN, if you can confirm that this bitpool problem is addressed (no need to go resetting my phone for nothing!)
Click to expand...
Click to collapse
i'm using v2 ho!no! v20f bell moded with my ui mod that is linked in my sig, my bluetooth stereo sounds great in my car, i use poweramp player paid version the rom is also linked on the page too

Serious bluetooth audio output issue?

I have observed that the bluetooth audio quality in aosp 10 and 9 both roms really sucks it's far more inferior to miui.When the bass is increased the sound becomes supressed and you can hear crackles after every bass punch.Whereas in miui it's powerful and amazing,I have tried everything i can i have changed firmwares china global it;s still the same , i have used several mods viper,dts hpx,dts ultra,james dsp,dolby digital etc. it;s still the same.I hve used music players like poweramp,player pro etc. but the issue persists.Does anyone know what is the cause of this issue and how can it be resolved.The audio quality feels like gingerbread?

Can"t confirm anything like that. I"m currently running a very outdated Superior OS build (August 2019) and listening to the music on my loudspeaker using BT (SBC HD) and wired connection feels the same. No distortions or anything like that (im using retro music player and yt).
I suggest you clean flash the ROM you are currently using and try again without any sound equalisers and boosters
Sent from my whyred using XDA Labs

There is a Magisk module that can change bluetooth bitrate, just search for bluetooth and you will find it in magisk repo. Try that but I don't have a problem with bluetooth audio on AOSP.

MikiGry said:
Can"t confirm anything like that. I"m currently running a very outdated Superior OS build (August 2019) and listening to the music on my loudspeaker using BT (SBC HD) and wired connection feels the same. No distortions or anything like that (im using retro music player and yt).
I suggest you clean flash the ROM you are currently using and try again without any sound equalisers and boosters
Sent from my whyred using XDA Labs
Click to expand...
Click to collapse
actually the problem lies with bluetooth earphones and the problem occurs when the bass is increased not when there are no effects applied.

Gabenoid said:
There is a Magisk module that can change bluetooth bitrate, just search for bluetooth and you will find it in magisk repo. Try that but I don't have a problem with bluetooth audio on AOSP.
Click to expand...
Click to collapse
i have used that i increased it to 482kbits but there was no change. I m well aware of the fact that the bitrate in miui is 48 nd in aosp its 44.1.

somilgupta49 said:
i have used that i increased it to 482kbits but there was no change. I m well aware of the fact that the bitrate in miui is 48 nd in aosp its 44.1.
Click to expand...
Click to collapse
I think you are mistaking sampling rate (44,1kHz for ex) and bitrate (in kb/s)
While first one can"t be changed, second one depends on the BT codec which your speaker uses. SBC for allows 340kb/s bitrate. In comparison - Spotify non-premium streams in 128kb/s
Sent from my whyred using XDA Labs