live stream via SRT or RTMP of phone screen (mediaprojection) results in audio cracking

[Prathiv7]

The app screen is live streamed with mix audio source and also recorded.

The recorded video has no audio issue but the live stream viewers hear audio with heavy noise like cracking , jittering , echo sometimes .

On RTMP the micro phone audio has no issue but when mix audio source is used audio issue comes mainly on the mixed app internal audio

on SRT even the micro phone audio has issue.

But when the local recording is not enabled the live stream seems good, when both recording and live stream using mix audio source then audio plb for live stream users

For a context the live stream is streamed on top of chime meeting session (like zoom , gmeet) few users will already in a meeting that meeting is live streamed to many users.

[pedroSG94]

Hello,

So if you stream without start local recording all is working fine in all cases? That is a really relevant info for the case.

[Prathiv7]

Yes if I stream without local recording everything works fine and also if stream with local recording the local recording is almost good but the stream audio has lot of issue . we tested only with mix audio.

In Iqoo 7 , Samsung s20 , pixel 6 , samsung 23 .

With SRT every time it's a issue with mix audio and but local recording has no audio issue
With RTMPS out of 10 , 2 or 1 times we get audio issue with local recording

SRT stream , MIX audio & local recording - every time issue on stream audio
RTMP stream , MIX audio & local recording - 9/10 works good.

IF needed will share the service files we use to handle recording and stream

[pedroSG94]

Hello,

I did this change to try fix it:
#2045

Gradle to test:

  implementation "com.github.pedroSG94.RootEncoder:library:d03cb0cec3"

Let me know the result

[Prathiv7]

Thx @pedroSG94 , Checking on the changes will let u know the results

[Prathiv7]

Audio Issue - attached the audio file first few secs it will be empty
2.ts

Download the audio alone from the server which has audio issue - on local recording no issue.
Note : Tested around 7 times , and 1 time it worked fine (Tested each time around 10 to 30 secs)

[Prathiv7]

@pedroSG94 we made some changes and it seems fine now, will update after doing complete testing on 5 different phones

[Prathiv7]

Used the master branch to test and the SRT streaming is working , before it was not working when we used the stereo on chime meeting and Mono to recording the local recording. And we have few audio issue testing to know whether it's caused in chime or in rootencoder SDK .

meanwhile what does this branch do differently, hv u found any specific issue and fixed ?

[pedroSG94]

Hello,

That change is not in the master branch. Did you check using the branch with the fix or only the master branch?

[Prathiv7]

Yes I check ur branch and I got issue then I check the config and changed to stereo then no issue . then I moved back to master with stereo config before I had Mono. So with stereo in master itself I didn't get any issue

[Prathiv7]

Since v r using SDK on top of another meeting SDK we feel sometimes the meeting SDK itself producing sound and that is propagated into recoding . we are doing end to end testing with 3 testers and 5 devices will let u know