How to capture participant audio (PCM) in Chime Android SDK?

[Abishek-project]

Summary:
I am using the Amazon Chime SDK for Android and need to capture remote participant audio (decoded PCM) for recording and processing.

The README Audio section only explains audio configuration (e.g., AudioStreamType, AudioRecordingPresetOverride) and does not describe how to access participant audio data.

Questions
Is participant audio capture supported on Android?
If yes, is RealtimeAudioSink the correct and supported API?

Could the team please confirm the supported approach or provide guidance/documentation for capturing participant audio on Android?

[pracheth]

Hi Abishek. Remote audio PCM capture on the client is not supported today.

Have you explored using Media Pipelines to achieve the same? This will capture audio, video, and content share streams, plus meeting events and data messages into an S3 bucket in your account.

[Abishek-project]

Yes, @pracheth . We have also explored Media Pipelines. However, Media Pipelines mainly support server-side recording by capturing audio, video, and content share streams and storing them in S3.

Our requirement is slightly different — we want to capture and record the meeting locally on the client device as an MP4 file (video + audio) and save it directly on the user's device instead of recording it on the server.

Could you please confirm if there is any supported approach for client-side recording in this scenario?