Stop CoreAudio from doing expensive audio rate conversion
diff --git a/src/audio/coreaudio/SDL_coreaudio.m b/src/audio/coreaudio/SDL_coreaudio.m
index 515df99..485d86d 100644
--- a/src/audio/coreaudio/SDL_coreaudio.m
+++ b/src/audio/coreaudio/SDL_coreaudio.m
@@ -734,6 +734,13 @@
if (!update_audio_session(this, SDL_TRUE)) {
return -1;
}
+
+ /* Stop CoreAudio from doing expensive audio rate conversion */
+ @autoreleasepool {
+ AVAudioSession* session = [AVAudioSession sharedInstance];
+ [session setPreferredSampleRate:this->spec.freq error:nil];
+ this->spec.freq = (int)session.sampleRate;
+ }
#endif
/* Setup a AudioStreamBasicDescription with the requested format */
