[Q] Audio drivers interaction and where to start - Android Q&A, Help & Troubleshooting

Hi everyone
I am looking into making a app with system wide audio streaming (watever sound the phone is pushing out of the phone streamed) and was wondering where I should start and where do I find the audio drivers,I do need a lot of help so if you can contribute in any form or way or tell me that I can do it without root will be great
I am hoping someone here has some knowledge and can help in any way or form

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audio question NO VIDEO

hi there,
if this is an annoying noob question, please ignore. i have read the forum rules and stuff, and watched the video. maybe my question is out of place here, but i thought i would give it a go.
i have a question regarding recording AUDIO, ie NOT audio in a video recording, on the galaxy SIII.
i'm a record producer and i would like to make decent sounding recordings of bands in rehearsal. i would like them to be not distorted and preferably in stereo. the only app that i came across on the market so far that gives me the option of recording in stereo and controlling the input gain is recforge pro. however, its 'stereo' options never seem to use the 2 mics on the SIII (its 'stereo(native)' mode records only either left or right side at random) , and in recording loud bands, the audio gets distorted anayway, even if i put the input gain on its lowest setting.
i just want to know if what i want is possible with this phone. i've been scouring these forums for hours now, and honestly couldn't find any decent answer to my question. if what i want is possible only by rooting the device and installing a custom ROM, i'm willing to do so. but i don't have the time to spend days in trial and error. so, if anyone here could answer my question and/or is interested in developing a ROM for me, i would most definitely be grateful.
thanks in advance,
stokki.

[Q] [DEV HELP PLEASE] - Record Line-in in my app

Hey guys and girls;
im new to android dev and java but have managed to get most of the stuff i need/want working in my app, the last piece of the puzzle i am trying to get working is recording a line in input to some sort of audio file, the problem i have is i cant find ANYTHING on how i might go about this.
Can someone give me a bit of help as to how i can get this working? I am not asking for full source (although that would clearly be helpful...) but more some directions as to where i can start making this work by myself.
Thanks for any help that can be offered;
Andy
EDIT:: Sorry just to be clear, i dont want to record a phone call or anything, i want to record from an external audio source, so was planning on using the pseudo line in from the headphone jack

Recoring and inject audio in a phone call from Android

Hello,
I am trying to programatically play an audio file (WAV) on an Android phone and inject that audio into a phone call so that remote party on the other end of the call can hear that audio. Is there a way to inject audio into a voice all? Likewise, I also need to record downlink voice call audio on the Android phone. This is for an internal project and not for commercial/consumer use.
I read in blogs that some modifications to the kernel would allow such audio inject & record and in another blog, I found commands such as aplay, arec and amix could help. Anyone knows how to do this?
I am open to pay up to $10K for a working solution on Samsung S3.
Thanks.
Jay
Have you had any success? I found your posting after googling a similar query and hoping you've had better luck than I.

[Q] Audio input to output

Hay guys I'm running second generation moto e 2015 LTE. I was wondering if anyone could give me a hand in trying to figure out how to route my Androids audio output to its input. From inside the Android it self. You see I'm trying to play music and prerecorded audio. That way it streams properly and can be heard by others in the correct quality. Having the idea that it can be accomplished somehow in the root. I work with C++ but I'm kinda of at a loss here. Any help would be greatly appreciated. I apologize ahead of time for writing the title backwards.
This should be possible by manipulating the ALSA settings within Android. Unfortunately, this is not particularly easy to do.
This page has a bunch of good information that might help you:
http://stackoverflow.com/questions/...dio-creating-alternate-sound-paths-in-android

How do I record Personal Voicemail Greeting from my android emulator Windows 7?

I rarely EVER post on forums, because I usually research on google for hours and end up getting my answers.
Well this seems to not exist on Google, so I will do the deeds of asking it on my favorite android forums.
I use Metro PCS on my LG phone and I really really badly want to know if I can record a person voicemail greeting using any android emulator on my computer.
I currently use Bluestacks, but if the solution is found for a different emulator, I'll use it.
I want to do this because I have a super high quality Blue Yeti Microphone, and combined with Audacity I can make amazing audio. Having that on my phone as my personal greeting would be like a dream (I would have the highest quality audio android will be able to play)
I did this before, but recorded the audio from my speaker, which you could still hear the air noise in my room.
If there's no way to do it on an emulator, or you don't even know then there's gotta be phone parts that allow me to hook up an audio device as my computer.
Is this possible?
Have been trying to do this for two years now. :crying:
My android phone IS rooted.
Any help would be greatly appreciated, even if you don't really deal with this stuff.
Other than that, I'll just have to wait this out and hope this doesn't fall to the bottom of the forums.

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