diff --git a/projects/Edgi_Talk_M55_XiaoZhi/applications/xiaozhi/iot/speaker.cpp b/projects/Edgi_Talk_M55_XiaoZhi/applications/xiaozhi/iot/speaker.cpp
index 2b3413d7..a1187ba1 100644
--- a/projects/Edgi_Talk_M55_XiaoZhi/applications/xiaozhi/iot/speaker.cpp
+++ b/projects/Edgi_Talk_M55_XiaoZhi/applications/xiaozhi/iot/speaker.cpp
@@ -3,6 +3,7 @@
 // 添加 C 接口头文件
 extern "C" {
 #include "drv_es8388.h"
+#include <rtdevice.h>
 }
 
 
@@ -12,10 +13,11 @@ namespace iot {
 
 class Speaker : public Thing {
 public:
-    Speaker() : Thing("Speaker", "扬声器") {
+    Speaker() : Thing("Speaker", "扬声器"), current_volume_(60) {
+        sound_dev_ = rt_device_find("sound0");
         // 定义属性：volume（当前音量值）
         properties_.AddNumberProperty("volume", "当前音量值(0到100之间)", [this]() -> int {
-            return es8388_volume_get();
+            return current_volume_;
         });
 
         // 定义方法：SetVolume（设置音量）
@@ -26,15 +28,24 @@ class Speaker : public Thing {
             if(volume > 100) {
                 volume = 100;
             }
-            es8388_volume_set(volume);
+            struct rt_audio_caps caps;
+            caps.main_type = AUDIO_TYPE_MIXER;
+            caps.sub_type = AUDIO_MIXER_VOLUME;
+            caps.udata.value = volume;
+            rt_device_control(sound_dev_, AUDIO_CTL_CONFIGURE, &caps);
+            current_volume_ = volume;
         });
 
         // 新增方法：GetVolume（获取音量）
         methods_.AddMethod("GetVolume", "获取当前音量", ParameterList(),
             [this](const ParameterList&) {
-                return es8388_volume_get(); // 直接返回音频服务获取的值
+                return current_volume_;
             });
     }
+
+private:
+    rt_device_t sound_dev_;
+    int current_volume_;
 };
 
 } // namespace iot
diff --git a/projects/Edgi_Talk_M55_XiaoZhi/applications/xiaozhi/xiaozhi.cpp b/projects/Edgi_Talk_M55_XiaoZhi/applications/xiaozhi/xiaozhi.cpp
index 20788dac..ec6b92c9 100644
--- a/projects/Edgi_Talk_M55_XiaoZhi/applications/xiaozhi/xiaozhi.cpp
+++ b/projects/Edgi_Talk_M55_XiaoZhi/applications/xiaozhi/xiaozhi.cpp
@@ -29,7 +29,7 @@
 #define NETWORK_CHECK_DELAY_MS 500
 #define RETRY_DELAY_BASE_MS 1000
 #define RETRY_DELAY_INCREMENT_MS 200
-#define TTS_STOP_DELAY_MS 200
+#define TTS_STOP_DELAY_MS 500
 #define BUTTON_DEBOUNCE_MS 20
 #define WAKEWORD_INIT_FLAG_RESET 0
 #define TTS_SENTENCE_TIMEOUT_MS 6000
diff --git a/projects/Edgi_Talk_M55_XiaoZhi/applications/xiaozhi/xiaozhi_audio.cpp b/projects/Edgi_Talk_M55_XiaoZhi/applications/xiaozhi/xiaozhi_audio.cpp
index c817db84..febb30f3 100644
--- a/projects/Edgi_Talk_M55_XiaoZhi/applications/xiaozhi/xiaozhi_audio.cpp
+++ b/projects/Edgi_Talk_M55_XiaoZhi/applications/xiaozhi/xiaozhi_audio.cpp
@@ -45,6 +45,7 @@ void xz_sound_init(void)
     struct rt_audio_caps sound_dev_arg;
     sound_dev_arg.main_type = AUDIO_TYPE_OUTPUT;
     sound_dev_arg.sub_type = AUDIO_DSP_PARAM;
+    sound_dev_arg.udata.value = 30;
     struct rt_audio_configure audio_configure;
     audio_configure.channels = 1;
     audio_configure.samplebits = 16;
@@ -61,6 +62,12 @@ int xz_mic_init(void)
     thiz->rt_mic_dev = rt_device_find("mic0");
     thiz->is_rx_enable = 0;  /* Initialize as disabled */
 
+    struct rt_audio_caps mic_dev_arg;
+    mic_dev_arg.main_type = AUDIO_TYPE_MIXER;
+    mic_dev_arg.sub_type = AUDIO_MIXER_VOLUME;
+    mic_dev_arg.udata.value = 30;
+    rt_device_control(thiz->rt_mic_dev, AUDIO_CTL_CONFIGURE, &mic_dev_arg);
+
     mic_event = rt_event_create("mic_evt", RT_IPC_FLAG_FIFO);
     RT_ASSERT(mic_event != RT_NULL);
     LOG_I("xz_mic_init");