#AudioKit 播放音序器音频mp3

Question

我正在尝试使用AudioKit库播放音频mp3列表。我阅读了有关音序器的信息，并在官方 AudioKit 文档的示例中看到了所有代码。 调用方法sequencer.play((后，没有声音。

var audios:[String] = [
"/Users/rubenpalma/Documents/mp3/hola.mp3",
"/Users/rubenpalma/Documents/mp3/prueba.mp3",
"/Users/rubenpalma/Documents/mp3/mundo.mp3",
"/Users/rubenpalma/Documents/mp3/test.mp3",
"/Users/rubenpalma/Documents/mp3/hi.mp3",
"/Users/rubenpalma/Documents/mp3/adios.mp3"
]

var path = playAudios(background: back, audiosPath: audios)
func playAudios(background:String,audiosPath:[String]) -> String {
var durationBackground = 0.00
let midi = AKMIDI()
let sequencer = AKSequencer()
let mixer = AKMixer()
do{
var i = 0
for path in audiosPath {
let fileAudioURL = NSURL(fileURLWithPath: path)
if let audio = try? AKAudioFile(forReading: fileAudioURL as URL) {
print("(path) size:(audio.duration)")
let sampler = AKMIDISampler()
try sampler.loadAudioFile(audio)
sampler.enableMIDI(midi.client, name: "Sampler_(i)")
mixer.connect(input: sampler)
let track = sequencer.newTrack("t_(i)")
track?.setMIDIOutput(sampler.midiIn)
track?.add(noteNumber: MIDINoteNumber(i), velocity: 127, position: AKDuration(beats:Double(0)), duration: AKDuration(beats:audio.duration*2), channel:1)
print("is empty? (track!.isEmpty)")
durationBackground += audio.duration
i += 1
}
}
AudioKit.output = mixer
try AudioKit.start()
sequencer.play()
print("playing.. (sequencer.isPlaying) ")
}catch{
print("Unexpected non-vending-machine-related error: (error)")
}
return "duration  (durationBackground)"
}

Answer 1

AKSequencer 是播放 midi 文件。要播放mp3文件，您需要使用AKPlayer http://audiokit.io/docs/Classes/AKPlayer.html