diff --git a/extension/mic-asp-sdk/srcs/mic_asp.c b/extension/mic-asp-sdk/srcs/mic_asp.c
index 4ed63cde..209c32a3 100644
--- a/extension/mic-asp-sdk/srcs/mic_asp.c
+++ b/extension/mic-asp-sdk/srcs/mic_asp.c
@@ -4,38 +4,60 @@
 #include <tdmin_interface.h>
 #include <dlfcn.h>
 #include <mic-asp.h>
+#include <pthread.h>
 
 static PCMContainer_t g_pcmParam;
 static apr_aiwrap_t* g_aprHandle;
 static void* g_libInterface;
+static pthread_t g_voiceThread;
+static int g_isStopVoice;
 
 #define MAX_BUF_TIME 128000
 #define NUM_CHANNELS 8
-#define SAMPLE_RATE  16000
+#define SAMPLE_RATE 16000
+#define BUFFER_SIZE (8 * 4 * 16000)
 
-#define DECL_API_PROC(name)	static Proc_##name _##name = NULL;
-#define LOAD_API_PROC(name)	_##name = (Proc_##name)dlsym(g_aprHandle, #name);
+#define DECL_API_PROC(name) static Proc_##name _##name = NULL;
+#define LOAD_API_PROC(name) _##name = (Proc_##name)dlsym(g_aprHandle, #name);
 
 API_LIST_SDK(DECL_API_PROC);
 
+static void* voiceCB(void* arg) {
+    int len;
+    unsigned char* pBufData = (unsigned char*)malloc(BUFFER_SIZE);
+
+    while (pBufData && g_isStopVoice) {
+        usleep(1000);
+        len = alsa_read_tdmin_pcm(&g_pcmParam);
+        memcpy(pBufData, g_pcmParam.data_buf, g_pcmParam.chunk_bytes);
+
+        if (len > 0 && len <= BUFFER_SIZE) {
+            _apr_aiwrap_write(g_aprHandle, pBufData, len);
+        }
+    }
+
+    g_isStopVoice = 2;
+    pthread_detach(pthread_self());
+
+    return NULL;
+}
 
 void mic_asp_uninit() {
-    if(g_aprHandle) {
+    if (g_aprHandle) {
         _apr_aiwrap_stop(g_aprHandle);
         _apr_aiwrap_destory(g_aprHandle);
         dlclose(g_libInterface);
-    }    
+    }
 
     alsa_tdmin_uninit(&g_pcmParam);
 }
 
-
 int mic_asp_init(MicDataCallback cb) {
     int err;
 
     g_libInterface = dlopen("/usr/lib64/libaiwrap_6mic_c500.so", RTLD_LAZY);
 
-    if(NULL == g_libInterface) {
+    if (NULL == g_libInterface) {
         return -1;
     }
 
@@ -44,28 +66,53 @@ int mic_asp_init(MicDataCallback cb) {
     API_LIST_SDK(LOAD_API_PROC);
 
     err = alsa_tdmin_init(&g_pcmParam, SAMPLE_RATE, NUM_CHANNELS, MAX_BUF_TIME);
-    if (err != 0) {        
+    if (err != 0) {
         return -2;
     }
 
     err = _apr_aiwrap_create(&g_aprHandle, "/data/res/conf_6mic_c500_nr_release.ini", "/data/res/auth.param");
 
-    if (err != 0) {        
+    if (err != 0) {
         return -3;
     }
 
     err = _apr_aiwrap_cb_set(g_aprHandle, "presswk", (void*)cb, 0);
-    if(err !=0){        
+    if (err != 0) {
         return -4;
     }
 
+    err = _apr_aiwrap_param_set(g_aprHandle, "cae_dso", "/usr/lib64/lib6mic_circle.so");
+    if (err != 0) {
+        return -5;
+    }
+
     return 0;
 }
 
 int mic_asp_start() {
-    return _apr_aiwrap_start(g_aprHandle);
+    int err = _apr_aiwrap_start(g_aprHandle);
+
+    if(err != 0) {
+        return -1;
+    }
+
+    g_isStopVoice = 0;
+
+    if (pthread_create(&g_voiceThread, NULL, voiceCB, NULL) == -1) {
+        return -2;
+    }
+
+    return 0;
 }
 
 int mic_asp_stop() {
+    g_isStopVoice = 1;
+
+    while(g_isStopVoice != 2) {
+        usleep(1000);
+    }
+
+    g_isStopVoice = 0;
+
     return _apr_aiwrap_stop(g_aprHandle);
 }
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