diff --git a/rtc_plugins.cpp b/rtc_plugins.cpp
index d7b8399..92d4546 100644
--- a/rtc_plugins.cpp
+++ b/rtc_plugins.cpp
@@ -41,8 +41,10 @@ int sendCustomAudioData(const int16_t destChannelIndex, py::object pyData, int32
         }
 
         std::cout << "step 2" << std::endl;
+        std::cout << "pyData ptr is:" << pyData.ptr() << std::endl;
         // 2. 检查是否是 numpy 数组
         if (!PyArray_Check(pyData.ptr())) {
+            std::cout << "input is notnumpy" << std::endl;
             throw std::runtime_error("Input is not a numpy array");
         }