diff --git a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/audiohw.xc b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/audiohw.xc
index d28e3cf..8ad11ef 100644
--- a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/audiohw.xc
+++ b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/audiohw.xc
@@ -156,7 +156,7 @@ port p_sda = PORT_I2C_SDA;
 //out port p_htr3235_sdb = PORT_HTR3236_SDB; /* 连接到HTR3236的SDB引脚，用于控制其电源状态 */
 
 out port p_ctl_mute = PORT_CTL_MUTE;
-in port p_ctl_det = PORT_CTL_DET;
+port p_ctl_det = PORT_CTL_DET;
 
 
 /* Board setup for XU316 MC Audio (1v1) */
@@ -2150,25 +2150,28 @@ void mute_handler(chanend c_mic_det)
                 mic2_in = ((det_val >> 2) & 1) ^ 1;
                 any_mic_in = mic1_in || mic2_in;
 
-                // 检测单个mic插入事件（从拔出变为插入）
-                unsigned mic1_inserted = (mic1_in && !prev_mic1_in);
-                unsigned mic2_inserted = (mic2_in && !prev_mic2_in);
-                unsigned any_inserted = mic1_inserted || mic2_inserted;
-                unsigned state_changed = (any_mic_in != prev_any_mic_in) || any_inserted;
+                // 检测单个mic插拔事件
+                unsigned mic1_changed = (mic1_in != prev_mic1_in);
+                unsigned mic2_changed = (mic2_in != prev_mic2_in);
+                unsigned any_changed = mic1_changed || mic2_changed;
 
-                if (state_changed) {
-                    // 状态变化：立即mute mic防止pop音
+                if (any_changed) {
+                    // 状态变化：立即mute mic和DAC防止pop音
+                    p_ctl_mute <: 0;
                     c_mic_det <: (unsigned)MIC_DET_MUTE;
+                   // c_mic_det <: (unsigned)MIC_DET_DAC_MUTE;
 
-                    // 如果有mic插入，同时mute DAC防pop
-                    if (any_inserted) {
-                        c_mic_det <: (unsigned)MIC_DET_DAC_MUTE;
-                    }
+                    // 配置ADC
+                    //c_mic_det <: (unsigned)MIC_DET_REINIT_CODEC;
+                    p_ctl_det <: 0;
+                    delay_milliseconds(100);
 
-                    debug_printf("mic det change: mic1=%d mic2=%d inserted=%d -> mute\n", mic1_in, mic2_in, any_inserted);
+                    //debug_printf("mic det change: mic1=%d mic2=%d -> mute all & reconfig\n", mic1_in, mic2_in);
+                    p_ctl_det :> det_val;
 
                     // 等1s让插拔稳定
-                    delay_milliseconds(1000);
+                    delay_milliseconds(900);
+                    p_ctl_mute <: 0xf;
 
                     // 重新读取稳定状态
                     p_ctl_det :> det_val;
@@ -2176,17 +2179,15 @@ void mute_handler(chanend c_mic_det)
                     mic2_in = ((det_val >> 2) & 1) ^ 1;
                     any_mic_in = mic1_in || mic2_in;
 
-                    // 恢复DAC（插入时的临时mute已满1s）
-                    if (any_inserted) {
-                        c_mic_det <: (unsigned)MIC_DET_DAC_UNMUTE;
-                    }
+                    // 恢复DAC状态
+                    c_mic_det <: (unsigned)MIC_DET_DAC_UNMUTE;
 
                     if (any_mic_in) {
-                        // 有mic插入，恢复mic音量
+                        // 有mic插入，恢复mic音量状态
                         c_mic_det <: (unsigned)MIC_DET_UNMUTE;
-                        debug_printf("mic stable inserted -> unmute\n");
+                        debug_printf("mic stable -> unmute\n");
                     }
-                    // 全拔出则保持mic mute，不发UNMUTE
+                    // 全拔出则保持mic mute
 
                     prev_mic1_in = mic1_in;
                     prev_mic2_in = mic2_in;