diff --git a/src/hal/star/i6c_aud.h b/src/hal/star/i6c_aud.h
index 8aa4e2f..9ad584e 100644
--- a/src/hal/star/i6c_aud.h
+++ b/src/hal/star/i6c_aud.h
@@ -135,8 +135,9 @@ typedef struct {
 
     int (*fnSetI2SConfig)(i6c_aud_input input, i6c_aud_i2s *config);
 
-    int (*fnSetGain)(int device, unsigned char group, char gains[], unsigned char gainSize);
+    int (*fnSetGain)(i6c_aud_input input, char leftLevel, char rightLevel);
     int (*fnSetMute)(int device, unsigned char group, char actives[], unsigned char activeSize);
+    int (*fnSetVolume)(int device, unsigned char group, char levels[], unsigned char levelSize);
 
     int (*fnFreeFrame)(int device, unsigned char group, i6c_aud_frm *frame, i6c_aud_frm *echoFrame);
     int (*fnGetFrame)(int device, unsigned char group, i6c_aud_frm *frame, i6c_aud_frm *echoFrame, int millis);
@@ -184,9 +185,9 @@ static int i6c_aud_load(i6c_aud_impl *aud_lib) {
         return EXIT_FAILURE;
     }
 
-    if (!(aud_lib->fnSetGain = (int(*)(int device, unsigned char group, char gains[], unsigned char gainSize))
-        dlsym(aud_lib->handle, "MI_AI_SetGain"))) {
-        fprintf(stderr, "[i6c_aud] Failed to acquire symbol MI_AI_SetGain!\n");
+    if (!(aud_lib->fnSetGain = (int(*)(i6c_aud_input input, char leftLevel, char rightLevel))
+        dlsym(aud_lib->handle, "MI_AI_SetIfGain"))) {
+        fprintf(stderr, "[i6c_aud] Failed to acquire symbol MI_AI_SetIfGain!\n");
         return EXIT_FAILURE;
     }
 
@@ -196,6 +197,12 @@ static int i6c_aud_load(i6c_aud_impl *aud_lib) {
         return EXIT_FAILURE;
     }
 
+    if (!(aud_lib->fnSetVolume = (int(*)(int device, unsigned char group, char levels[], unsigned char levelSize))
+        dlsym(aud_lib->handle, "MI_AI_SetGain"))) {
+        fprintf(stderr, "[i6c_aud] Failed to acquire symbol MI_AI_SetGain!\n");
+        return EXIT_FAILURE;
+    }
+
     if (!(aud_lib->fnFreeFrame = (int(*)(int device, unsigned char group, i6c_aud_frm *frame, i6c_aud_frm *echoFrame))
         dlsym(aud_lib->handle, "MI_AI_ReleaseData"))) {
         fprintf(stderr, "[i6c_aud] Failed to acquire symbol MI_AI_ReleaseData!\n");
diff --git a/src/hal/star/i6c_hal.c b/src/hal/star/i6c_hal.c
index cf18c83..542810e 100644
--- a/src/hal/star/i6c_hal.c
+++ b/src/hal/star/i6c_hal.c
@@ -105,15 +105,12 @@ int i6c_audio_init(short samplerate)
                 return ret;*/
         if (ret = i6c_aud.fnAttachToDevice(_i6c_aud_dev, input, inputSize))
             return ret;
+        if (ret = i6c_aud.fnSetGain(input[0], 13, 13))
+            return ret;
     }
 
     if (ret = i6c_aud.fnEnableGroup(_i6c_aud_dev, _i6c_aud_chn))
         return ret;
-    {
-        char gain[1] = { 13 };
-        if (ret = i6c_aud.fnSetGain(_i6c_aud_dev, _i6c_aud_chn, gain, 1))
-            return ret;
-    }
 
     {
         i6c_sys_bind bind = { .module = I6C_SYS_MOD_AI,