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fix:调整音频增益逻辑

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This commit is contained in:
liyi 2025-08-26 11:14:19 +08:00
parent 404ecf724f
commit 4bbbac11a3
1 changed files with 14 additions and 28 deletions
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42
lib/talk/starChart/views/native/talk_view_native_decode_logic.dart
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@ -104,10 +104,10 @@ class TalkViewNativeDecodeLogic extends BaseGetXController {
codecType: 'h264',
);
// 初始化解码器并获取textureId
AppLog.log('StartChartManage().videoWidth:${StartChartManage()
.videoWidth}');
AppLog.log('StartChartManage().videoHeight:${StartChartManage()
.videoHeight}');
AppLog.log(
'StartChartManage().videoWidth:${StartChartManage().videoWidth}');
AppLog.log(
'StartChartManage().videoHeight:${StartChartManage().videoHeight}');
final textureId = await VideoDecodePlugin.initDecoder(config);
if (textureId != null) {
Future.microtask(() => state.textureId.value = textureId);
@ -746,7 +746,6 @@ class TalkViewNativeDecodeLogic extends BaseGetXController {
//开始录音
Future<void> startProcessingAudio() async {
try {
if (await state.voiceProcessor?.hasRecordAudioPermission() ?? false) {
await state.voiceProcessor?.start(state.frameLength, state.sampleRate);
@ -793,27 +792,13 @@ class TalkViewNativeDecodeLogic extends BaseGetXController {
// 添加音频增益处理方法
List<int> _applyGain(List<int> pcmData, double gainFactor) {
List<int> result = List<int>.filled(pcmData.length, 0);
for (int i = 0; i < pcmData.length; i++) {
// PCM数据通常是有符号的16位整数
int sample = pcmData[i];
// 应用增益
double amplified = sample * gainFactor;
// 限制在有效范围内，防止溢出
if (amplified > 32767) {
amplified = 32767;
} else if (amplified < -32768) {
amplified = -32768;
}
result[i] = amplified.toInt();
}
return result;
return pcmData.map((sample) {
// 增益并裁剪
int amplified = (sample * gainFactor).round();
return amplified.clamp(-32768, 32767);
}).toList();
}
static const int chunkSize = 320; // 每次发送320字节（10ms G.711）
static const int intervalMs = 35; // 每40ms发送一次（4个chunk）
void _sendAudioChunk(Timer timer) async {
@ -849,10 +834,11 @@ class TalkViewNativeDecodeLogic extends BaseGetXController {
List<int> encodedData = G711Tool.encode(applyGain, 0); // 0表示A-law
_bufferedAudioFrames.addAll(encodedData);
// 启动定时发送器（仅启动一次）
if (_startProcessingAudioTimer == null && _bufferedAudioFrames.length > chunkSize) {
_startProcessingAudioTimer = Timer.periodic(Duration(milliseconds: intervalMs), _sendAudioChunk);
if (_startProcessingAudioTimer == null &&
_bufferedAudioFrames.length > chunkSize) {
_startProcessingAudioTimer =
Timer.periodic(Duration(milliseconds: intervalMs), _sendAudioChunk);
}
}