#import was the missing link.
soundMixing is read only, so [[AudioSessionManager sharedAudioSessionManager]setSoundMixing:YES]; did the trick.
I just can say…wow. This place is fantastic.
I have another question about the “system mute switch” when using flitecontroller. flitecontroller ignores the mute switch and plays audio when the mute switch is turned on. I understand that this is part of the AudioSession Category. Can I influence this portion when using the flitecontroller, because the sound is only peripheral and should be muted if the user wants so.
Should I open another threat for this?