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 161d2d6..963092d 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
@@ -301,8 +301,8 @@ void UserBufferManagement(unsigned sampsFromUsbToAudio[], unsigned sampsFromAudi
 #endif
     GET_SHARED_GLOBAL(is_monitor, g_monitor_switch_t1);
     if (is_monitor) {
-        sampsFromUsbToAudio[0] += (sampsFromAudioToUsb[0]);
-        sampsFromUsbToAudio[1] += (sampsFromAudioToUsb[1]);
+        sampsFromUsbToAudio[0] += (unsigned)((((int)sampsFromAudioToUsb[0]) >> 1));
+        sampsFromUsbToAudio[1] += (unsigned)((((int)sampsFromAudioToUsb[1]) >> 1));
     }
 }