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docs(audio-recorder): note that Android AEC also needs the playback path #1256

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docs(audio-recorder): note that Android AEC also needs the playback path #1256

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17 changes: 17 additions & 0 deletions packages/audiodocs/docs/inputs/audio-recorder.mdx
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Expand Up @@ -371,6 +371,23 @@ const audioRecorder = new AudioRecorder({
});
```

:::caution Android: the playback side matters too

On Android the platform AEC engaged by `voiceCommunication` cancels against the
**voice-communication output path**. Playback started from an `AudioContext`
does not sit on that path — it defaults to `USAGE_MEDIA` — so on some devices
the app's own output can still leak into the capture even with the input preset
set correctly.

If you are building barge-in style interaction and still hear the app
transcribe itself, this is the likely cause. Progress is tracked in
[#1254](https://github.com/software-mansion/react-native-audio-api/issues/1254).

Testing note: verify through the **loudspeaker**, never headphones. Headphones
remove the acoustic path entirely and hide the problem.

:::

## Properties

| Name | Type | Description |
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