启用音频输入 AudioKit v5

Question

我正在尝试将应用程序从 AudioKit v4 迁移到 v5，但我很难找到有关迁移的文档，而且我在 Cookbook 中找不到这些文档。 以前我们可以通过 AKSettings 设置 defaultToSpeaker 和 audioInputEnabled。 现在，这些属性不见了，我找不到如何替换它们。

v4：

AKSettings.audioInputEnabled = true
AKSettings.defaultToSpeaker = true

有谁知道新版本如何设置这些参数？ 任何反馈都非常感谢！

Answer 1

纳扎里，

在 AudioKit 5 中，以下是我设置音频输入参数的方法：

import AudioKit
import AVFoundation

class Conductor {
    
    static let sharedInstance = Conductor()
    
    // Instantiate the audio engine and Mic Input node objects
    let engine = AudioEngine()
    var mic: AudioEngine.InputNode!
    
    // Add effects for the Mic Input.
    var delay: Delay!
    var reverb: Reverb!
    let mixer = Mixer()
    
    // MARK: Initialize the audio engine settings.
    
    init() {
        
        // AVAudioSession requires the AVFoundation framework to be imported in the header.
        
        do {
            Settings.bufferLength = .medium
            try AVAudioSession.sharedInstance().setPreferredIOBufferDuration(Settings.bufferLength.duration)
            try AVAudioSession.sharedInstance().setCategory(.playAndRecord,
                                        options: [.defaultToSpeaker, .mixWithOthers, .allowBluetoothA2DP])
            try AVAudioSession.sharedInstance().setActive(true)
        } catch let err {
            print(err)
        }
        
        // The audio signal path with be:
        // input > mic > delay > reverb > mixer > output
                
        // Mic is connected to the audio engine's input...
        
        mic = engine.input

        // Mic goes into the delay...
        
        delay = Delay(mic)
        delay.time = AUValue(0.5)
        delay.feedback = AUValue(30.0)
        delay.dryWetMix = AUValue(15.0)
        
        // Delay output goes into the reverb...
        
        reverb = Reverb(delay)
        reverb.loadFactoryPreset(.largeHall2)
        reverb.dryWetMix = AUValue(0.4)
        
        // Reverb output goes into the mixer...

        mixer.addInput(reverb)
        
        // Engine output is connected to the mixer.
        engine.output = mixer
        
        // Uncomment the following method, if you don't want to Start and stop the audio engine via the SceneDelegate.
        // startAudioEngine()

    }
    
    // MARK: Start and stop the audio engine via the SceneDelegate
    
    func startAudioEngine() {
        do {
            print("Audio engine was started.")
            try engine.start()
        } catch {
            Log("AudioKit did not start! \(error)")
        }
    }

    func stopAudioEngine() {
        engine.stop()
        print("Audio engine was stopped.")
    }
    
}

请让我知道这是否适合您。

保重，马克