AudioQueue player mix with other sounds has a 0.5s mute

Question

yuanjilee OP

Created Jul ’23

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I was play a pcm(24kHz 16bit) file with AudioQueue, and it mix with other sound( 192kHz 24bit) named sound2.

Setting for AVAudioSession as:
category (AVAudioSessionCategoryPlayback),
options (AVAudioSessionCategoryOptionMixWithOthers|AVAudioSessionCategoryOptionDuckOthers)

when playing pcm the sound2 should pushed volume lower as setting. BUT, there has a absolutly mute keep 0.5 second when the sound2 become low, and after a 0.5s mute the pushed lower sound came out.

It only become in sound2 situation(192kHz, 24bit). if the sound2's quality lower everything is OK.

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Answer 1

yuanjilee OP

Nov ’23

Resloved it by

[[AVAudioSession sharedInstance] setActive:YES withOptions:AVAudioSessionSetActiveOptionNotifyOthersOnDeactivation error:nil];

Options is the key.

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