diff --git a/ap/lib/libvoice/include/voice_ipc.h b/ap/lib/libvoice/include/voice_ipc.h
index 0041d73..c8297a0 100755
--- a/ap/lib/libvoice/include/voice_ipc.h
+++ b/ap/lib/libvoice/include/voice_ipc.h
@@ -31,6 +31,10 @@
     IPC_CAP_ALSA_VOICE_OPEN = 14,
     IPC_CAP_ALSA_VOICE_CLOSE = 15,
     IPC_UPDATE_VOICE_NVRW = 16,
+    IPC_SET_RX_VOICE_VOL_GAIN = 17,
+    IPC_GET_RX_VOICE_VOL_GAIN = 18,
+    IPC_SET_TX_VOICE_VOL_GAIN = 19,
+    IPC_GET_TX_VOICE_VOL_GAIN = 20,
 
     IPC_VOICE_FUNC_MAX
 };
@@ -67,6 +71,10 @@
 void ipc_get_voice_device_mode_rcv(voice_ipc_control_msg msg);
 void ipc_set_rx_voice_vol_rcv(voice_ipc_control_msg msg);
 void ipc_get_rx_voice_vol_rcv(voice_ipc_control_msg msg);
+void ipc_set_rx_voice_vol_gain_rcv(voice_ipc_control_msg msg);
+void ipc_get_rx_voice_vol_gain_rcv(voice_ipc_control_msg msg);
+void ipc_set_tx_voice_vol_gain_rcv(voice_ipc_control_msg msg);
+void ipc_get_tx_voice_vol_gain_rcv(voice_ipc_control_msg msg);
 void ipc_set_tx_voice_vol_rcv(voice_ipc_control_msg msg);
 void ipc_get_tx_voice_vol_rcv(voice_ipc_control_msg msg);
 void ipc_set_tx_voice_mute_state_rcv(voice_ipc_control_msg msg);
diff --git a/ap/lib/libvoice/voice_api.c b/ap/lib/libvoice/voice_api.c
index 3494e74..e9f5145 100755
--- a/ap/lib/libvoice/voice_api.c
+++ b/ap/lib/libvoice/voice_api.c
@@ -44,8 +44,10 @@
 extern int mix_get_voice_path(struct mixer *mixer, int *path);
 extern int mix_set_vploop(struct mixer *mixer, int path);
 extern int mix_get_vploop(struct mixer *mixer, int *state);
-
-
+extern int mix_set_voice_vol_gain(struct mixer *mixer, int vol_gain);
+extern int mix_get_voice_vol_gain(struct mixer *mixer, int *vol_gain);
+extern int mix_set_tx_voice_vol_gain(struct mixer *mixer, int vol_gain);
+extern int mix_get_tx_voice_vol_gain(struct mixer *mixer, int *vol_gain);
 
 	
 #define VOCIE_SND_CARD_NUM 0
@@ -224,7 +226,139 @@
 	
 }
 
+int sc_audio_set_rx_voice_vol_gain(int gain)
+{
+	struct mixer *voice_mixer = NULL;
+	printf("%s: start vol=%d!\n",__func__, gain);
 
+	if ((gain < -15 ) ||(gain > 24)){
+		printf("%s: gain not support, gain=%d!\n",__func__, gain);
+		return -1;
+	}
+
+	//open mixer dev for  control
+	voice_mixer = mixer_open(VOCIE_SND_CARD_NUM);
+	if (!voice_mixer) {
+		printf("voice_mixer open failed!\n");
+		return -1;
+	}
+
+	//config mixer dev
+	mix_set_voice_vol_gain(voice_mixer, gain);
+
+	//close mixer
+	mixer_close(voice_mixer);
+	voice_mixer = NULL;
+
+
+	return 0;
+
+
+	
+	
+}
+
+int sc_audio_get_rx_voice_vol_gain(int     * p_gain)
+{
+    int ret = 0;
+	struct mixer *voice_mixer = NULL;
+
+	printf("%s: start!\n",__func__);
+
+	//open mixer dev for  control
+	voice_mixer = mixer_open(VOCIE_SND_CARD_NUM);
+	if (!voice_mixer) {
+		printf("voice_mixer open failed!\n");
+		return -1;
+	}
+
+	//config mixer dev
+	mix_get_voice_vol_gain(voice_mixer, p_gain);
+	
+
+	if ((*p_gain < -15 ) ||(*p_gain > 24)){
+		printf("%s: gain not support, *p_gain=%d!\n",__func__, *p_gain);
+		ret = -1;
+	}
+	printf("%s:  *p_gain=%d!\n",__func__, *p_gain);
+
+	//close mixer
+	mixer_close(voice_mixer);
+	voice_mixer = NULL;
+
+
+	return ret;
+
+	
+	
+}
+
+int sc_audio_set_tx_voice_vol_gain(int gain)
+{
+	struct mixer *voice_mixer = NULL;
+	printf("%s: start vol=%d!\n",__func__, gain);
+
+	if ((gain < -15 ) ||(gain > 24)){
+		printf("%s: gain not support, gain=%d!\n",__func__, gain);
+		return -1;
+	}
+
+	//open mixer dev for  control
+	voice_mixer = mixer_open(VOCIE_SND_CARD_NUM);
+	if (!voice_mixer) {
+		printf("voice_mixer open failed!\n");
+		return -1;
+	}
+
+	//config mixer dev
+	mix_set_tx_voice_vol_gain(voice_mixer, gain);
+
+	//close mixer
+	mixer_close(voice_mixer);
+	voice_mixer = NULL;
+
+
+	return 0;
+
+
+	
+	
+}
+
+int sc_audio_get_tx_voice_vol_gain(int     * p_gain)
+{
+    int ret = 0;
+	struct mixer *voice_mixer = NULL;
+
+	printf("%s: start!\n",__func__);
+
+	//open mixer dev for  control
+	voice_mixer = mixer_open(VOCIE_SND_CARD_NUM);
+	if (!voice_mixer) {
+		printf("voice_mixer open failed!\n");
+		return -1;
+	}
+
+	//config mixer dev
+	mix_get_tx_voice_vol_gain(voice_mixer, p_gain);
+	
+
+	if ((*p_gain < -15 ) ||(*p_gain > 24)){
+		printf("%s: gain not support, *p_gain=%d!\n",__func__, *p_gain);
+		ret = -1;
+	}
+	printf("%s:  *p_gain=%d!\n",__func__, *p_gain);
+
+	//close mixer
+	mixer_close(voice_mixer);
+	voice_mixer = NULL;
+
+
+	return ret;
+
+	
+	
+}
 
 int sc_audio_set_tx_voice_vol(int vol)
 {
diff --git a/ap/lib/libvoice/voiceipc.c b/ap/lib/libvoice/voiceipc.c
index a3f5569..33561f0 100755
--- a/ap/lib/libvoice/voiceipc.c
+++ b/ap/lib/libvoice/voiceipc.c
@@ -23,6 +23,10 @@
 extern int sc_audio_get_tx_voice_mute_state(int *p_mute);
 extern int sc_audio_set_rx_voice_mute_state(int mute);
 extern int sc_audio_get_rx_voice_mute_state(int *p_mute);
+extern int sc_audio_set_rx_voice_vol_gain(int gain);
+extern int sc_audio_get_rx_voice_vol_gain(int     * p_gain);
+extern int sc_audio_set_tx_voice_vol_gain(int gain);
+extern int sc_audio_get_tx_voice_vol_gain(int     * p_gain);
 //extern int sc_audio_set_loopback_enable_state(int enable);
 //extern int sc_audio_get_loopback_enable_state(int *p_enable);
 int ap_audio_set_loopback_enable(int dev_mode,int enable);
@@ -262,6 +266,98 @@
 	}
 }
 
+void ipc_set_rx_voice_vol_gain_rcv(voice_ipc_control_msg msg)
+{
+    int ret = VOICEIPC_OK;
+    int msg_len = 0;
+    int gain = 0;
+
+    //memcpy(&dev_mode, msg.param, msg.param_len);
+    gain = *((int *)msg.param);
+    ret = sc_audio_set_rx_voice_vol_gain(gain);
+
+    //msg.func_id不变
+    msg.param_len = sizeof(int);
+    memcpy(msg.param, &ret, msg.param_len);
+    msg_len = VOICE_HEAD_LEN + msg.param_len;
+
+    ret = write(voice_ipc_fd, &msg, msg_len);
+    
+    if (0 >= ret){
+		printf("%s: write error(%d)!\n", __func__, ret);
+	}
+}
+
+void ipc_get_rx_voice_vol_gain_rcv(voice_ipc_control_msg msg)
+{
+    int ret = VOICEIPC_OK;
+    int msg_len = 0;
+    int *p_vol = NULL;
+
+    p_vol = (int *)msg.param;
+    ret = sc_audio_get_rx_voice_vol_gain(p_vol);
+	
+    //msg.func_id不变
+    msg.param_len = sizeof(int);
+    if(0 == ret)
+        memcpy(msg.param, p_vol, msg.param_len);
+    else
+        memcpy(msg.param, &ret, msg.param_len);
+    msg_len = VOICE_HEAD_LEN + msg.param_len;
+
+    ret = write(voice_ipc_fd, &msg, msg_len);
+    
+    if (0 >= ret){
+		printf("%s: write error(%d)!\n", __func__, ret);
+	}
+}
+
+void ipc_set_tx_voice_vol_gain_rcv(voice_ipc_control_msg msg)
+{
+    int ret = VOICEIPC_OK;
+    int msg_len = 0;
+    int gain = 0;
+
+    //memcpy(&dev_mode, msg.param, msg.param_len);
+    gain = *((int *)msg.param);
+    ret = sc_audio_set_tx_voice_vol_gain(gain);
+
+    //msg.func_id不变
+    msg.param_len = sizeof(int);
+    memcpy(msg.param, &ret, msg.param_len);
+    msg_len = VOICE_HEAD_LEN + msg.param_len;
+
+    ret = write(voice_ipc_fd, &msg, msg_len);
+    
+    if (0 >= ret){
+		printf("%s: write error(%d)!\n", __func__, ret);
+	}
+}
+
+void ipc_get_tx_voice_vol_gain_rcv(voice_ipc_control_msg msg)
+{
+    int ret = VOICEIPC_OK;
+    int msg_len = 0;
+    int *p_vol = NULL;
+
+    p_vol = (int *)msg.param;
+    ret = sc_audio_get_tx_voice_vol_gain(p_vol);
+	
+    //msg.func_id不变
+    msg.param_len = sizeof(int);
+    if(0 == ret)
+        memcpy(msg.param, p_vol, msg.param_len);
+    else
+        memcpy(msg.param, &ret, msg.param_len);
+    msg_len = VOICE_HEAD_LEN + msg.param_len;
+
+    ret = write(voice_ipc_fd, &msg, msg_len);
+    
+    if (0 >= ret){
+		printf("%s: write error(%d)!\n", __func__, ret);
+	}
+}
+
 void ipc_set_tx_voice_vol_rcv(voice_ipc_control_msg msg)
 {
     int ret = VOICEIPC_OK;
@@ -509,6 +605,18 @@
         case IPC_GET_RX_VOICE_VOL:
 			ipc_get_rx_voice_vol_rcv(voice_ctrl_recvmsg[msg.func_id]);
 			break;
+        case IPC_SET_RX_VOICE_VOL_GAIN:
+			ipc_set_rx_voice_vol_gain_rcv(voice_ctrl_recvmsg[msg.func_id]);
+			break;
+        case IPC_GET_RX_VOICE_VOL_GAIN:
+			ipc_get_rx_voice_vol_gain_rcv(voice_ctrl_recvmsg[msg.func_id]);
+			break;
+        case IPC_SET_TX_VOICE_VOL_GAIN:
+			ipc_set_tx_voice_vol_gain_rcv(voice_ctrl_recvmsg[msg.func_id]);
+			break;
+        case IPC_GET_TX_VOICE_VOL_GAIN:
+			ipc_get_tx_voice_vol_gain_rcv(voice_ctrl_recvmsg[msg.func_id]);
+			break;
         case IPC_SET_TX_VOICE_VOL:
 			ipc_set_tx_voice_vol_rcv(voice_ctrl_recvmsg[msg.func_id]);
 			break;