uac 1 noise fix

sw_usb_audio/app_usb_aud_phaten_golden/src/extensions/dsp.c

@@ -1,4 +1,4 @@
-#define DEBUG_PRINT_ENABLE 1
+#define DEBUG_PRINT_ENABLE 0
 
 #include <platform.h>
 #include <xs1.h>
@@ -142,7 +142,13 @@ void UserBufferManagement(unsigned sampsFromUsbToAudio[], unsigned sampsFromAudi
     uint32_t is_dnr;
     uint32_t is_mute;
     unsigned tmp[8]={0,0,0,0,0,0,0,0}, downmix[8]={0,0,0,0,0,0,0,0};
-
+#if UAC1_MODE
+    static unsigned count = 0;
+    if (count < 4800000) {
+        count++;
+        return; 
+    }
+#endif
     GET_SHARED_GLOBAL(is_3d, g_3d_on_off_t1);
     GET_SHARED_GLOBAL(is_dnr, g_dnr_on_off_t1);
     GET_SHARED_GLOBAL(is_mute, g_mute_on_off_t1);