audio_visualizer

Description:

audio visualizer

audio_visualizer #
This package transforms any integer stream into target frequency bands.
Because this package just do a computation.
So it should work on any platforms!
Credits #
For ui https://github.com/iamSahdeep/FlutterVisualizers
For frequency bands https://github.com/keijiro/unity-audio-spectrum
Getting Started #
You should look at example. It demostrates bar visualizer from microphone and music (pcm)

// Import package
import 'package:audio_visualizer/audio_visualizer.dart';

// Init visualizer
final visualizer = AudioVisualizer(
windowSize: bufferSize,
bandType: bandType,
sampleRate: sampleRate,
zeroHzScale: 0.05,
fallSpeed: 0.08,
sensibility: 8.0,
);

// Do transform
StreamController<List<double>> audioFFT = ...
final result = visualizer.transform(samples, minRange: 0, maxRange: 255)
audioFFT.add(result)

// Use Stream to build widget
StreamBuilder(
stream: audioFFT.stream,
builder: (context, snapshot) {
final buffer = snapshot.data as List<double>;
// render buffer somehow
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