Audio fix

src/audio/vita/SDL_vitaaudio.c

@@ -68,20 +68,7 @@ VITAAUD_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
     this->spec.samples = SCE_AUDIO_SAMPLE_ALIGN(this->spec.samples);
 
     /* Update the fragment size as size in bytes. */
-/*  SDL_CalculateAudioSpec(this->spec); MOD */
-    switch (this->spec.format) {
-    case AUDIO_U8:
-        this->spec.silence = 0x80;
-        break;
-    default:
-        this->spec.silence = 0x00;
-        break;
-    }
-    this->spec.size = SDL_AUDIO_BITSIZE(this->spec.format) / 8;
-    this->spec.size *= this->spec.channels;
-    this->spec.size *= this->spec.samples;
-
-/* ========================================== */
+    SDL_CalculateAudioSpec(&this->spec);
 
     /* Allocate the mixing buffer.  Its size and starting address must
        be a multiple of 64 bytes.  Our sample count is already a multiple of