
#import <MediaPlayer/MediaPlayer.h> MPMusicPlayerController *musicPlayer; musicPlayer = [MPMusicPlayerController applicationMusicPlayer]; [musicPlayer setVolume:voiceSlider.value];
#import <MediaPlayer/MediaPlayer.h> MPMusicPlayerController *musicPlayer; musicPlayer = [MPMusicPlayerController applicationMusicPlayer]; [musicPlayer setVolume:voiceSlider.value];
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