How to route audio through Apple device's internal speakers, avoiding headphones?

Question

I'm using the kAudioSessionPoperty_AudioRoute and setting it to kAudioSessionOverrideAudioRouteSpeaker. I want the output audio to be routed through internal speakers only but when I insert headphones it gets routed through that.

Answer 1

Try this...

UInt32 sessionCategory = kAudioSessionCategory_PlayAndRecord;
AudioSessionSetProperty(kAudioSessionProperty_AudioCategory, sizeof(sessionCategory), &sessionCategory);

UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker;
AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute,sizeof (audioRouteOverride),&audioRouteOverride);