diff --git a/local_plugins/ble_service/android/src/main/kotlin/com/yunqiinnovation/ble_service/OpusAudioManager.kt b/local_plugins/ble_service/android/src/main/kotlin/com/yunqiinnovation/ble_service/OpusAudioManager.kt
index 354382df6..06dddc96b 100644
--- a/local_plugins/ble_service/android/src/main/kotlin/com/yunqiinnovation/ble_service/OpusAudioManager.kt
+++ b/local_plugins/ble_service/android/src/main/kotlin/com/yunqiinnovation/ble_service/OpusAudioManager.kt
@@ -9,9 +9,6 @@ import com.jieli.jl_audio_decode.callback.OnDecodeStreamCallback
 import com.jieli.jl_audio_decode.callback.OnEncodeStreamCallback
 import com.jieli.jl_audio_decode.opus.OpusManager
 import com.jieli.jl_audio_decode.exceptions.OpusException
-import java.text.SimpleDateFormat
-import java.util.Date
-import java.util.Locale
 import java.util.concurrent.LinkedBlockingQueue
 import java.util.concurrent.atomic.AtomicBoolean
 
@@ -117,10 +114,8 @@ class OpusAudioManager {
     @Volatile
     private var capturedSilence: ByteArray? = null
 
-    // 上下文：用于双声道编码模式下，分别为左右声道写入 mono PCM WAV 调试文件
+    // 上下文：用于上行解码后 PCM 的 WAV 调试文件写入（decodePcmWavWriter）
     private var appContext: Context? = null
-    private var leftPcmWavWriter: WavFileWriter? = null
-    private var rightPcmWavWriter: WavFileWriter? = null
     // 上行(设备→手机)opus 解码后 PCM 的 WAV 调试文件：命名「翻译-上行」，opus_test 可直接播放听辨
     private var decodePcmWavWriter: WavFileWriter? = null
 
@@ -154,8 +149,8 @@ class OpusAudioManager {
     
     /**
      * 初始化Opus音频管理器
-     * @param context 应用上下文，用于双声道编码模式下的 PCM WAV 调试文件写入；
-     *                不传则跳过 PCM WAV 调试文件落盘，其他功能不受影响
+     * @param context 应用上下文，用于上行解码后 PCM 的 WAV 调试文件写入（decodePcmWavWriter，命名「翻译-上行」）；
+     *                不传则跳过该落盘，其他功能不受影响
      * @return 是否初始化成功
      */
     fun initialize(context: Context? = null): Boolean {
@@ -472,8 +467,6 @@ class OpusAudioManager {
 
         capturedSilence = null
 
-        openPcmWavWriters(sampleRate)
-
         fun makeOption() = OpusOption().apply {
             setHasHead(hasHeader)
             setChannel(1)
@@ -530,7 +523,6 @@ class OpusAudioManager {
         try { rightEncodeManager?.stopEncodeStream() } catch (e: Exception) { Log.e(TAG, "停止右声道编码异常", e) }
         try { silenceEncodeManager?.stopEncodeStream() } catch (e: Exception) { Log.e(TAG, "停止静音编码异常", e) }
         capturedSilence = null
-        closePcmWavWriters()
         callback?.onEncodeStreamStateChanged(false)
         CallLog.i(TAG, "双声道独立编码流已停止")
         return true
@@ -577,7 +569,6 @@ class OpusAudioManager {
             return
         }
         if (pcm.isEmpty()) return
-        leftPcmWavWriter?.writePcmData(pcm)
         leftEncodeManager?.writeEncodeStream(pcm)
     }
 
@@ -590,7 +581,6 @@ class OpusAudioManager {
             return
         }
         if (pcm.isEmpty()) return
-        rightPcmWavWriter?.writePcmData(pcm)
         rightEncodeManager?.writeEncodeStream(pcm)
     }
 
@@ -610,11 +600,9 @@ class OpusAudioManager {
         val silence = ByteArray(paddingMs * 32)
         when (channel) {
             CHANNEL_LEFT -> {
-                leftPcmWavWriter?.writePcmData(silence)
                 leftEncodeManager?.writeEncodeStream(silence)
             }
             CHANNEL_RIGHT -> {
-                rightPcmWavWriter?.writePcmData(silence)
                 rightEncodeManager?.writeEncodeStream(silence)
             }
             else -> {
@@ -626,32 +614,6 @@ class OpusAudioManager {
     }
 
 
-    private fun openPcmWavWriters(sampleRate: Int) {
-        val ctx = appContext ?: return
-        try {
-            val ts = SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault()).format(Date())
-            leftPcmWavWriter = WavFileWriter(ctx).also {
-                val ok = it.createWavFile("pcm_left_$ts", sampleRate, 1, 16)
-                if (!ok) leftPcmWavWriter = null
-            }
-            rightPcmWavWriter = WavFileWriter(ctx).also {
-                val ok = it.createWavFile("pcm_right_$ts", sampleRate, 1, 16)
-                if (!ok) rightPcmWavWriter = null
-            }
-        } catch (e: Exception) {
-            Log.e(TAG, "创建 PCM WAV 调试文件失败: ${e.message}", e)
-            leftPcmWavWriter = null
-            rightPcmWavWriter = null
-        }
-    }
-
-    private fun closePcmWavWriters() {
-        try { leftPcmWavWriter?.closeWavFile() } catch (e: Exception) { Log.e(TAG, "关闭左声道 PCM WAV 失败", e) }
-        try { rightPcmWavWriter?.closeWavFile() } catch (e: Exception) { Log.e(TAG, "关闭右声道 PCM WAV 失败", e) }
-        leftPcmWavWriter = null
-        rightPcmWavWriter = null
-    }
-
     /**
      * 打开上行(设备→手机)解码后 PCM 的 WAV 落地文件。
      * 命名「翻译-上行」前缀，写到 getExternalFilesDir，opus_test 扫描到 .wav 直接播放听辨；