diff --git a/lib/talk/starChart/views/imageTransmission/image_transmission_logic.dart b/lib/talk/starChart/views/imageTransmission/image_transmission_logic.dart
index 96d03afe..0bf874fd 100644
--- a/lib/talk/starChart/views/imageTransmission/image_transmission_logic.dart
+++ b/lib/talk/starChart/views/imageTransmission/image_transmission_logic.dart
@@ -602,12 +602,23 @@ class ImageTransmissionLogic extends BaseGetXController {
     } on PlatformException catch (ex) {
       // state.errorMessage.value = 'Failed to stop recorder: $ex';
     } finally {
+      // 延迟关闭定时器，确保剩余数据能发送出去
+      if (_startProcessingAudioTimer != null) {
+        // 插入5个320长度的全0数据包
+        for (int i = 0; i < 5; i++) {
+          _bufferedAudioFrames.addAll(List.filled(chunkSize, 0));
+        }
+        Future.delayed(const Duration(milliseconds: 300), () {
+          _startProcessingAudioTimer?.cancel();
+          _startProcessingAudioTimer = null;
+          _bufferedAudioFrames.clear();
+        });
+      } else {
+        _bufferedAudioFrames.clear();
+      }
       final bool? isRecording = await state.voiceProcessor?.isRecording();
       state.isRecordingAudio.value = isRecording!;
     }
-    _startProcessingAudioTimer?.cancel();
-    _startProcessingAudioTimer = null;
-    _bufferedAudioFrames.clear();
   }
 
   static const int chunkSize = 320; // 每次发送320字节（10ms G.711）
@@ -656,27 +667,11 @@ class ImageTransmissionLogic extends BaseGetXController {
     AppLog.log(error.message!);
   }
 
-// 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();
   }
 }
diff --git a/lib/talk/starChart/views/native/talk_view_native_decode_logic.dart b/lib/talk/starChart/views/native/talk_view_native_decode_logic.dart
index 931317ba..50eda207 100644
--- a/lib/talk/starChart/views/native/talk_view_native_decode_logic.dart
+++ b/lib/talk/starChart/views/native/talk_view_native_decode_logic.dart
@@ -782,12 +782,23 @@ class TalkViewNativeDecodeLogic extends BaseGetXController {
     } on PlatformException catch (ex) {
       // state.errorMessage.value = 'Failed to stop recorder: $ex';
     } finally {
+      // 延迟关闭定时器，确保剩余数据能发送出去
+      if (_startProcessingAudioTimer != null) {
+        // 插入5个320长度的全0数据包
+        for (int i = 0; i < 5; i++) {
+          _bufferedAudioFrames.addAll(List.filled(chunkSize, 0));
+        }
+        Future.delayed(const Duration(milliseconds: 300), () {
+          _startProcessingAudioTimer?.cancel();
+          _startProcessingAudioTimer = null;
+          _bufferedAudioFrames.clear();
+        });
+      } else {
+        _bufferedAudioFrames.clear();
+      }
       final bool? isRecording = await state.voiceProcessor?.isRecording();
       state.isRecordingAudio.value = isRecording!;
     }
-    _startProcessingAudioTimer?.cancel();
-    _startProcessingAudioTimer = null;
-    _bufferedAudioFrames.clear();
   }
 
 // 添加音频增益处理方法
diff --git a/lib/talk/starChart/views/talkView/talk_view_logic.dart b/lib/talk/starChart/views/talkView/talk_view_logic.dart
index d58e5093..c46db104 100644
--- a/lib/talk/starChart/views/talkView/talk_view_logic.dart
+++ b/lib/talk/starChart/views/talkView/talk_view_logic.dart
@@ -599,12 +599,23 @@ class TalkViewLogic extends BaseGetXController {
     } on PlatformException catch (ex) {
       // state.errorMessage.value = 'Failed to stop recorder: $ex';
     } finally {
+      // 延迟关闭定时器，确保剩余数据能发送出去
+      if (_startProcessingAudioTimer != null) {
+        // 插入5个320长度的全0数据包
+        for (int i = 0; i < 5; i++) {
+          _bufferedAudioFrames.addAll(List.filled(chunkSize, 0));
+        }
+        Future.delayed(const Duration(milliseconds: 300), () {
+          _startProcessingAudioTimer?.cancel();
+          _startProcessingAudioTimer = null;
+          _bufferedAudioFrames.clear();
+        });
+      } else {
+        _bufferedAudioFrames.clear();
+      }
       final bool? isRecording = await state.voiceProcessor?.isRecording();
       state.isRecordingAudio.value = isRecording!;
     }
-    _startProcessingAudioTimer?.cancel();
-    _startProcessingAudioTimer = null;
-    _bufferedAudioFrames.clear();
   }
 
   static const int chunkSize = 320; // 每次发送320字节（10ms G.711）
@@ -656,25 +667,10 @@ class TalkViewLogic 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();
   }
 }