在AudioKit中即时更改输入和输出的最佳做法？

Question

我想知道是否有关于如何动态切换AudioKit.setInputDevice(...)和mic.setDevice(...)的输入以及动态AudioKit.setOutputDevice(...)的最佳做法？

在.stop()和AudioKit本身上围绕此类操作调用.start()和AKMicrophone是什么时候？

使用允许用户设置所需输入和输出设备的应用程序，我通常会收到很多错误，通常会导致在此之后没有音频功能正常运行。

从启动设置相同的自定义输入/输出设备可靠地工作。

这是一个用于切换输入和输出的Playground。您应该会发现，如果您动态更改输出，则输入不再起作用并传递音频。

//: ## Tracking Microphone Input
//:
import AudioKitPlaygrounds
import AudioKit

let mic = AKMicrophone()
//: Set the microphone device if you need to
if let inputs = AudioKit.inputDevices {
    let inputNum = 0
    try AudioKit.setInputDevice(inputs[inputNum])
    try mic.setDevice(inputs[inputNum])
}
let silence = AKBooster(gain: 0)

AudioKit.output = silence
try AudioKit.start()

//: User Interface
import AudioKitUI

class LiveView: AKLiveViewController {

    override func viewDidLoad() {

        addTitle("Input / Output switching")
        addTitle("Inputs")


        /// Input picker
      if let inputs = AudioKit.inputDevices {
        for input in inputs {
          let newButton = AKButton(title: input.name, callback: { _ in
            do {
              print("Setting mic to \(input.name)")
              try mic.setDevice(input)
            }
            catch {
              print(error)
            }

            do{
              print("Setting audioInputDevice to \(input.name)")
              try AudioKit.setInputDevice(input)
            }catch{
              print(error)
            }

          })
          addView(newButton)
        }
      }

      let rollingPlot = AKNodeOutputPlot(mic, frame: CGRect(x: 0, y: 0, width: 440, height: 200))
      rollingPlot.plotType = .buffer
      rollingPlot.shouldFill = true
      rollingPlot.shouldMirror = true
      rollingPlot.color = AKColor.red
      rollingPlot.gain = 2
      addView(rollingPlot)

      addTitle("Outputs")

      // Output Picker
      if let outputs = AudioKit.outputDevices {
        for output in outputs {
          let newButton = AKButton(title: output.name, callback: { _ in
            do {
              print("Trying setOutputDevice to \(output.name)")
              try AudioKit.setOutputDevice(output)
            }
            catch {
              print(error)
            }
          })
          addView(newButton)
        }
      }
    }
}

import PlaygroundSupport
PlaygroundPage.current.needsIndefiniteExecution = true
PlaygroundPage.current.liveView = LiveView()

谢谢！