CODEWITHSUNDEEP
iosswiftaudiounit
Torbilicious
Torbilicious

Reputation: 467

Changing the volume of only my app

I am using apples AudioUnit to create sound. I was wondering if it is possible to control the volume of only my audio output and not the whole system audio with MPVolumeView.

If anyone could provide an answer, or a hint where to look i would very much appreciate it.

Upvotes: 0

Views: 146

Answers (1)

caxix
caxix

Reputation: 1102

Yes - it is possible. You do it by adding a mixer module to your AUGraph. You can address it in code to regulate volume. There are other methods as well, but this would be the most common one. Typing on a phone, but this is approximately how you would implement an on/off switch in obj-c:

float volume = (localAudio) ? 0.95 : 0.0;
AudioUnitSetParameter(_mixerUnit, kMultiChannelMixerParam_Volume, kAudioUnitScope_Output, 0, volume, 0);

Upvotes: 2

Related Questions