In Android, when recording, if other apps are using the microphone, no exception is thrown

[tamil-zinnect]

While recording audio on iOS, if other apps are simultaneously using the microphone, an exception is thrown. However, in Android, no exception is thrown in such a scenario.
3.6.7

0.74.2

Android

Throw exception while other apps using microphone.

THrowing exception for IOS. Not throwing for Android.

Attempt to use the microphone from another app concurrently, such as initiating a voice call or using a different recording app.
Now, use audio player start record
Observe that there's no exception thrown by the Android system, allowing both apps to access the microphone simultaneously.

[salman1696]

yes, facing same issue.
Anyone had faced the issue?
Anything helpful

[nomanakram199]

Same issue on android
@tamil-zinnect @jbaudanza @borg @claude

[MiracleUFO]

+1

[hyochan]

This is Android platform behavior rather than a library bug: since Android 10, when another app holds the microphone, the system does not fail MediaRecorder.start() — the lower-priority app simply records silence (Google's concurrent-capture policy), whereas iOS fails activation of the audio session. That's why the exception appears on iOS but not Android.

It is detectable, though: AudioManager.registerAudioRecordingCallback reports isClientSilenced for our recording session on API 29+, so the library could either reject startRecorder or emit a state on the record-back channel when the capture is being silenced. Tracking that as the enhancement for this issue — PRs welcome.

Workaround meanwhile: with metering enabled, a sustained currentMetering at the silence floor right after start is a strong signal the mic is held by another app.

Note: This repo is maintained by Claude as an AI-native project. Hyo triages direction; fixes and dep bumps are autogenerated. See the README for details.