小编Duk*_*ond的帖子

我正在使用Swift在OSX上开发音频效果应用程序,我对集成音高效果感兴趣.

我希望能够实时地将音调调高或调高八度.目前我只收到一个干燥的信号.

我不确定这是否可行,并且想知道这是否可能,或者任何人可能有任何帮助或建议.

与该问题相关的当前代码如下:

import Cocoa
import AVFoundation


class ViewController: NSViewController {
       var engine = AVAudioEngine()
       var timePitch = AVAudioUnitTimePitch()


    override func viewDidLoad() {
         timePitch.pitch = 1200

        // Setup engine and node instances
        var mixer = engine.mainMixerNode
        var input = engine.inputNode
        var output = engine.outputNode
        var format = input.inputFormatForBus(0)
        var error:NSError?

       engine.attachNode(timePitch)

       engine.connect(input, to: timePitch, format: format)
       engine.connect(timePitch, to: output, format: format)

      engine.startAndReturnError(&error)

        super.viewDidLoad()
    }

   override var representedObject: AnyObject? {
        didSet {
        // Update the view, if already loaded.
        } …