While editing tags or processing files ahead of time on a pc to play at a faster rate on an mp3 player may be possible, doing all this preparation is not desirable.ĭude JK could you start to qualify your statements like “IMO this is a much more important feature…” For you… This is indeed true, but I bet you find double or triple the number of people who want better video support. Imo this is a much more important feature for an mp3 player than playing video or displaying photos. While it may not be easy, it is very important to those who listen to many podcasts, lectures, and audiobooks. We need to do FFT and inverse FFTs to pull it off. Using the PC with its resources makes this trivial, but for us its hard. Its computation intensive and development intensive. m4p.'There will be no enhancement in Pitch correction in the next firmware. mp4,īut many have other extensions, most commonly. The only official filename extension for MPEG-4 Part 14 files is.

Player2 = try AVAudioPlayer(contentsOfURL: soundUrl) Let soundUrl = NSBundle.mainBundle().URLForResource('sound2', withExtension: 'm4a')! // or mp3 Player1 = try AVAudioPlayer(contentsOfURL: soundUrl) Try AVAudioSession.sharedInstance().setActive(true) Try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryAmbient) Let soundUrl = NSBundle.mainBundle().URLForResource('sound1', withExtension: 'mp3')! // or m4a > I prefer to use m4a because, in short it is Apple's own audio format. However, if you want to convert mp3 to m4a you can download this free program from official website:Īlso you may need FFmpeg 2+ to convert process: > Now you can play multiple sounds simultaneously with mp3 or m4a suffix.

usr/bin/afconvert -f caff -d ima4 sound.mp3 sound.caf SString *path = player= initWithContentsOfURL:Ĭonvert to supported format (i.e. NSString *path = player= initWithContentsOfURL: You just need to create a new player instance for every music file, that you want to play. Linear PCM and IMA/ADPCM (IMA4 audio): without CPU resource concerns. Files with below formats can be played simultaneously on iPhone.ĪAC, MP3, and ALAC (Apple Lossless) audio: have CPU resource concern.

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