为AVFoundationAudioSettings设置AVAudioTimePitchAlgorithmVarispeed

Question

根据这些docs，我可以更改AVAudioPlayer的某些设置，包括AVAudioTimePitchAlgorithmVarispeed设置。我该如何设置此值？我是否需要子类化AVAudioSetting.h？

Answer 1

如果不需要使用AVAudioPlayer，则可以使用AVPlayer

AVPlayerItem *playerItem = [AVPlayerItem playerItemWithURL:url];
playerItem.audioTimePitchAlgorithm = AVAudioTimePitchAlgorithmTimeDomain;
AVPlayer *player = [AVPlayer playerWithPlayerItem:playerItem];
[player play];