我在AudioKit 4.9.1上,无法使用新的AKSequencer
播放MIDI文件(替换为AKAppleSequencer
)。没有声音播放。假定MIDI文件AND样本先前已与AKAppleSequencer
一起使用,因此已正确加载。还启用了背景音频模式功能。
以下是相关代码:(我也尝试过AKSampler
和AKAppleSampler
,但结果相同)
class MIDIPlayer {
var sampler: AKSampler
var legacySampler: AKAppleSampler
var sequencer: AKSequencer
init(withSfz sfz: String, orSf2 sf2: String, andMidiFile midiFile: String) {
self.sampler = AKSampler()
self.legacySampler = AKAppleSampler()
try? legacySampler.loadSoundFont(sf2, preset: 0, bank: 0)
sampler.loadSFZ(url: Bundle.main.url(forResource: sfz, withExtension: "sfz")!)
AudioKit.output = sampler
try? AudioKit.start()
sequencer = AKSequencer(targetNode: sampler)
// sequencer = AKSequencer(targetNode: legacySampler)
let midi = AKMIDIFile(url: Bundle.main.url(forResource: midiFile, withExtension: "mid")!)
sequencer.load(midiFile: midi)
}
func play() {
sequencer.playFromStart()
}
在设置我丢失的信号链方面有什么区别吗?
使用新的音序器,它必须是信号链的一部分。因此,请执行类似>>的操作
AudioKit.output = AKMixer(sampler, sequencer)
它应该工作。很抱歉在Github问题上看到此消息。