diff --git a/test_time_r.py b/test_time_r.py
index 52b5bba..aefc986 100644
--- a/test_time_r.py
+++ b/test_time_r.py
@@ -14,6 +14,7 @@ srcChannelIndex = 46
 destChannelIndex = 47
 def my_callback(npData, dataSize, dataCount, sampleRate, numChannels, channelIndex):
     print(f"dataSize:{dataSize}, dataCount:{dataCount}, sampleRate:{sampleRate}, numChannels:{numChannels}, channelIndex:{channelIndex}")
+    print(npData)
     #audioData = np.array([0, 1, -1, 0], dtype=np.int16)
     #ret = rtc_plugins.sendCustomAudioData(srcChannelIndex, audioData, 48000, 1, len(audioData))
     #if ret != 0: