diff --git a/util/RTCContext.cpp b/util/RTCContext.cpp
index 2cc090f..452c2b9 100644
--- a/util/RTCContext.cpp
+++ b/util/RTCContext.cpp
@@ -41,16 +41,17 @@ void RTCContext::onAudioProcess(const char* roomId, const char* peerId,
 {
     namespace py = boost::python;
     std::cout << "-----------------------------------" << std::endl;
-    std::cout << "dataCount:" << audioFrame.dataCount << audioSourceType;
+    std::cout << "dataCount:" << audioFrame.dataCount << audioSourceType << std::endl;
     if (!py_callback_.is_none()) {
         std::cout << "python callback" << std::endl;
         npy_intp dims[1] = {audioFrame.dataCount};
+        std::cout << "step1" << std::endl;
         PyObject* pyArray = PyArray_SimpleNewFromData(1, dims, NPY_INT16, audioFrame.data);
+        std::cout << "step2" << std::endl;
         py_callback_(py::handle<>(pyArray), audioFrame.dataCount, audioFrame.sampleRate, audioFrame.numChannels,
                     audioFrame.channelIndex);
+        std::cout << "step3" << std::endl;
     }
-    //sendAudioData(audioFrame.channelIndex, audioFrame.data, audioFrame.sampleRate, audioFrame.numChannels,
-    //              audioFrame.dataCount);
 }
 void RTCContext::onProducer(uint32_t msgId, mrtc::MRTCProducerInfo& info)
 {