diff --git a/test_time_r.py b/test_time_r.py
index aefc986..60a4565 100644
--- a/test_time_r.py
+++ b/test_time_r.py
@@ -1,6 +1,9 @@
 import rtc_plugins
 import time
 import numpy as np
+import mmap
+import os
+from ctypes import c_int16
 
 srcUserId = "srcUser12"
 destUserId = "destUser12"
@@ -12,9 +15,19 @@ srcRoomId = "srcRoom12"
 destRoomId = srcRoomId
 srcChannelIndex = 46
 destChannelIndex = 47
-def my_callback(npData, dataSize, dataCount, sampleRate, numChannels, channelIndex):
+def my_callback(shmName, dataSize, dataCount, sampleRate, numChannels, channelIndex):
     print(f"dataSize:{dataSize}, dataCount:{dataCount}, sampleRate:{sampleRate}, numChannels:{numChannels}, channelIndex:{channelIndex}")
-    print(npData)
+    print(shmName)
+    fd = os.open(shmName, os.O_RDONLY)
+    if fd == -1:
+        raise RuntimeError(f"无法打开共享内存 {shmName}")
+
+    # 2. 创建内存映射
+    shm = mmap.mmap(fd, dataSize, mmap.MAP_SHARED, mmap.PROT_READ)
+
+    # 3. 转换为numpy数组 (零拷贝)
+    audio_data = np.frombuffer(shm, dtype=c_int16, count=dataCount)
+    print(f"        前5个采样点: {audio_data[:5]}")
     #audioData = np.array([0, 1, -1, 0], dtype=np.int16)
     #ret = rtc_plugins.sendCustomAudioData(srcChannelIndex, audioData, 48000, 1, len(audioData))
     #if ret != 0: