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 feb34fd..65b94cb 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
@@ -157,9 +157,6 @@ void UserBufferManagement(unsigned sampsFromUsbToAudio[], unsigned sampsFromAudi
 {
     uint32_t is_3d;
     unsigned is_monitor;
-#if UAC1_MODE
-    return;
-#endif
 
 #if USE_EX3D == 1
 #if defined(SPATIAL_DRAMA) || defined(SPATIAL_GAME) || defined(SPATIAL_MOVIE) || defined(SPATIAL_MUSIC)
@@ -938,7 +935,7 @@ void hid_button_task(chanend_t cc_mic_level, chanend_t c_hidRcvData, chanend_t c
                 unsigned mon_sw = chan_in_word(cc_mic_level);
                 SET_SHARED_GLOBAL(g_monitor_switch_t1, mon_sw);
                 debug_printf("Monitor sync: sw=%d\n", mon_sw);
-            }  
+            }
         }
         continue;