feat: 对讲中APP发送录音到锁声量增大

lib/talk/starChart/views/talkView/talk_view_logic.dart

@@ -46,6 +46,8 @@ class TalkViewLogic extends BaseGetXController {
   int audioFrameIntervalMs = 20; // 初始帧间隔设置为45毫秒（约22FPS）
   int minFrameIntervalMs = 30; // 最小帧间隔（约33 FPS）
   int maxFrameIntervalMs = 100; // 最大帧间隔（约1 FPS）
+  // 定义音频帧缓冲和发送函数
+  List<int> _bufferedAudioFrames = <int>[];
 
   /// 初始化音频播放器
   void _initFlutterPcmSound() {
@@ -533,15 +535,17 @@ class TalkViewLogic extends BaseGetXController {
 
   //开始录音
   Future<void> startProcessingAudio() async {
-    // 增加录音帧监听器和错误监听器
-    state.voiceProcessor?.addFrameListener(_onFrame);
-    state.voiceProcessor?.addErrorListener(_onError);
     try {
       if (await state.voiceProcessor?.hasRecordAudioPermission() ?? false) {
         await state.voiceProcessor?.start(state.frameLength, state.sampleRate);
         final bool? isRecording = await state.voiceProcessor?.isRecording();
         state.isRecordingAudio.value = isRecording!;
         state.startRecordingAudioTime.value = DateTime.now();
+
+        // 增加录音帧监听器和错误监听器
+        state.voiceProcessor
+            ?.addFrameListeners(<VoiceProcessorFrameListener>[_onFrame]);
+        state.voiceProcessor?.addErrorListener(_onError);
       } else {
         // state.errorMessage.value = 'Recording permission not granted';
       }
@@ -576,23 +580,23 @@ class TalkViewLogic extends BaseGetXController {
 
 // 音频帧处理
   Future<void> _onFrame(List<int> frame) async {
-    // 预处理和转码操作放到异步计算线程
-    // final processedFrame = await compute(preprocessAudio, frame);
-    // final list = listLinearToALaw(processedFrame);
     final List<int> processedFrame = preprocessAudio(frame);
     final List<int> list = listLinearToALaw(processedFrame);
+    _bufferedAudioFrames.addAll(list);
 
     final int ms = DateTime.now().millisecondsSinceEpoch -
         state.startRecordingAudioTime.value.millisecondsSinceEpoch;
 
-    // 发送音频数据到UDP
+    Future.delayed(const Duration(milliseconds: 1000)).whenComplete(() async {
-    await StartChartManage().sendTalkDataMessage(
+      // 发送音频数据到UDP
-      talkData: TalkData(
+      await StartChartManage().sendTalkDataMessage(
-        content: list,
+        talkData: TalkData(
-        contentType: TalkData_ContentTypeE.G711,
+          content: list,
-        durationMs: ms,
+          contentType: TalkData_ContentTypeE.G711,
-      ),
+          durationMs: ms,
-    );
+        ),
+      );
+    });
   }
 
 // 错误监听
@@ -662,9 +666,31 @@ class TalkViewLogic extends BaseGetXController {
   //   return processedList;
   // }
 
-  List<int> listLinearToALaw(List<int> pcmList) {
+  List<int> adjustVolume(List<int> pcmList, double volume) {
-    final List<int> aLawList = [];
+    final List<int> adjustedPcmList = [];
     for (int pcmVal in pcmList) {
+      // 调整音量
+      int adjustedPcmVal = (pcmVal * volume).round();
+
+      // 裁剪到 16-bit PCM 范围
+      if (adjustedPcmVal > 32767) {
+        adjustedPcmVal = 32767;
+      } else if (adjustedPcmVal < -32768) {
+        adjustedPcmVal = -32768;
+      }
+
+      adjustedPcmList.add(adjustedPcmVal);
+    }
+    return adjustedPcmList;
+  }
+
+  List<int> listLinearToALaw(List<int> pcmList) {
+    // 先调节音量
+    final List<int> adjustedPcmList = adjustVolume(pcmList, 5.0);
+
+    // 再进行 A-law 编码
+    final List<int> aLawList = [];
+    for (int pcmVal in adjustedPcmList) {
       final int aLawVal = linearToALaw(pcmVal);
       aLawList.add(aLawVal);
     }

lib/talk/starChart/views/talkView/talk_view_state.dart

@@ -37,7 +37,7 @@ class TalkViewState {
   RxList<int> listAudioData = <int>[].obs; //得到的音频流字节数据
   GlobalKey globalKey = GlobalKey();
 
-   Timer? oneMinuteTimeTimer; // 定时器超过60秒关闭当前界面
+  Timer? oneMinuteTimeTimer; // 定时器超过60秒关闭当前界面
   RxInt oneMinuteTime = 0.obs; // 定时器秒数
 
   // 定时器如果发送了接听的命令 而没收到回复就每秒重复发送10次