[Feature request]: Audio visualizer when audio is being recorded

[jcblancomartinez]

Is your feature request related to a problem? Please describe. There is no straight forward solution to display an audio visualizer while recording an audio.

Describe the solution you'd like I would like a straight forward solution to display an audio visualizer while recording an audio.

Describe alternatives you've considered

Instead of showing an audio visualizer, we are using a LinearProgressIndicator that consumes _dbLevel.

    await _audioRecorder.setSubscriptionDuration(Duration(milliseconds: 100));
    _audioRecorderSubscription = _audioRecorder.onProgress!.listen((e) {
      setState(() {
        _dbLevel = e.decibels!;
      });
    });

Additional context

This would be the expected audio visualizer of the recorded audio:

Thanks.

[Larpoux]

Perhaps you could recordToStream() to a PCM stream. You will get a stream of 16 bits integers for each sample rate and use those integers to draw your visualizer

[yacaeh]

@Larpoux Hi, Is it also possible to play the pcm file while recording using recordToStream?

[Larpoux]

Yes. You can look to the streamLoop example

[github-actions[bot]]

This issue is stale because it has been open 90 days with no activity. Leave a comment or this will be closed in 7 days.