diff --git a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/CMakeLists.txt b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/CMakeLists.txt
index d8347c7..a483b75 100644
--- a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/CMakeLists.txt
+++ b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/CMakeLists.txt
@@ -79,18 +79,18 @@ LINK_DIRECTORIES(${CMAKE_CURRENT_LIST_DIR}/../../lib_dnr/lib_dnr)
 
 set(APP_COMPILER_FLAGS_f5_music_uac1 ${SW_USB_AUDIO_FLAGS}       -DI2S_CHANS_DAC=2
                                                         -DI2S_CHANS_ADC=2
-                                                        -DAUDIO_CLASS=1
+                                                        #-DAUDIO_CLASS=1
                                                         -DMIN_FREQ=48000
                                                         -DMAX_FREQ=48000
                                                         -DUAC1_MODE=1
                                                         -DF5_MUSIC_UAC1=1
-                                                        -DUSE_EX3D
+                                                        #-DUSE_EX3D
                                                         -DMIXER=0
                                                         #-ldnr_50ms
                                                         #-DDNR_ENABLE=1
                                                         -llib_ex3d_all
-                                                        -DEQ_EN=1
-                                                        -DEX3D_SF_NUM=3
+                                                        #-DEQ_EN=1
+                                                        #-DEX3D_SF_NUM=3
                                                         -DNUM_USB_CHAN_OUT=8
                                                         -DNUM_USB_CHAN_OUT_FS=2
                                                         -DNUM_USB_CHAN_IN=2
@@ -104,9 +104,9 @@ set(APP_COMPILER_FLAGS_f5_music_uac1 ${SW_USB_AUDIO_FLAGS}       -DI2S_CHANS_DAC
                                                         -DMIN_VOLUME=0xE000
                                                         -DINPUT_VOLUME_CONTROL=1
                                                         -DOUTPUT_VOLUME_CONTROL=1
-                                                        -DDEBUG_MEMORY_LOG_ENABLED=1
+                                                        #-DDEBUG_MEMORY_LOG_ENABLED=1
                                                         -DXUA_DFU_EN=0
-                                                        -DIR_SWITCHING_MODE
+                                                        #-DIR_SWITCHING_MODE
                                                         -DHID_CONTROLS=0)
 
 
diff --git a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dsp.c b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dsp.c
index 7e0d2f3..86dad77 100644
--- a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dsp.c
+++ b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dsp.c
@@ -139,6 +139,9 @@ void UserBufferManagement(unsigned sampsFromUsbToAudio[], unsigned sampsFromAudi
     uint32_t is_3d;
     uint32_t is_dnr;
     uint32_t is_mute;
+#if UAC1_MODE
+    return;
+#endif
 
 #if USE_EX3D == 1
 #if defined(SPATIAL_DRAMA) || defined(SPATIAL_GAME) || defined(SPATIAL_MOVIE) || defined(SPATIAL_MUSIC)