diff --git a/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/dsp.c b/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/dsp.c
index 2bb1373..59b8b69 100644
--- a/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/dsp.c
+++ b/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/dsp.c
@@ -434,11 +434,18 @@ void UserBufferManagement(unsigned sampsFromUsbToAudio[], unsigned sampsFromAudi
         sampsFromAudioToUsb[1] = (unsigned)mic_samples[1];
     }
 #endif
+#if 0
     GET_SHARED_GLOBAL(is_monitor, g_monitor_switch_t1);
     if (is_monitor) {
         sampsFromUsbToAudio[0] += (unsigned)((((int)sampsFromAudioToUsb[0]) >> 1));
         sampsFromUsbToAudio[1] += (unsigned)((((int)sampsFromAudioToUsb[1]) >> 1));
     }
+#endif
+#if 1
+    unsigned tmp = sampsFromUsbToAudio[0];
+    sampsFromUsbToAudio[0] = sampsFromUsbToAudio[1];
+    sampsFromUsbToAudio[1] = tmp;
+#endif
 }