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Add LPCNet voice mode support

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Janez T
2026-03-11 21:16:08 +01:00
parent 1b6ff59af3
commit ca872f2049
15 changed files with 329 additions and 124 deletions
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11
lib/services/voice_player_service.dart
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@@ -5,7 +5,7 @@ import 'package:audioplayers/audioplayers.dart';
import 'package:flutter/foundation.dart';
import 'package:path_provider/path_provider.dart';
/// Plays decoded 8000 Hz / 16-bit mono PCM samples by writing a WAV file
/// Plays decoded mono PCM samples by writing a WAV file
/// to the system temp directory and using [AudioPlayer].
class VoicePlayerService {
final AudioPlayer _player = AudioPlayer();
@@ -49,16 +49,17 @@ class VoicePlayerService {
});
}
/// Play [pcmSamples] (Int16, 8000 Hz, mono).
Future<void> play(Int16List pcmSamples) async {
Future<void> play(Int16List pcmSamples, {required int sampleRateHz}) async {
debugPrint('🔊 [VoicePlayer] play() called, ${pcmSamples.length} samples');
if (_isPlaying) await stop();
_position = Duration.zero;
_duration = Duration(milliseconds: (pcmSamples.length * 1000) ~/ 8000);
_duration = Duration(
milliseconds: (pcmSamples.length * 1000) ~/ sampleRateHz,
);
_playbackStartedAt = DateTime.now();
_events.add(null);
final wavBytes = _buildWav(pcmSamples, sampleRate: 8000);
final wavBytes = _buildWav(pcmSamples, sampleRate: sampleRateHz);
final tmpDir = await getTemporaryDirectory();
final file = File('${tmpDir.path}/vc_voice.wav');
await file.writeAsBytes(wavBytes);