我正在尝试在我的mac上用swift实现语音到文本的转换。我找到了一些文章，但它们都是针对iOS的。我正在尝试跟随这篇文章：http://www.appcoda.com/siri-speech-framework/
到目前为止，这是我的代码在Playground：

//: Playground - noun: a place where people can play

import Cocoa
import PlaygroundSupport
PlaygroundPage.current.needsIndefiniteExecution = true
import Speech

while true {
    microphoneButton.isEnabled = false  //2

    speechRecognizer.delegate = self  //3

    SFSpeechRecognizer.requestAuthorization { (authStatus) in  //4

        var isButtonEnabled = false

        switch authStatus {  //5
        case .authorized:
            isButtonEnabled = true

        case .denied:
            isButtonEnabled = false
            print("User denied access to speech recognition")

        case .restricted:
            isButtonEnabled = false
            print("Speech recognition restricted on this device")

        case .notDetermined:
            isButtonEnabled = false
            print("Speech recognition not yet authorized")
        }

        OperationQueue.main.addOperation() {
            self.microphoneButton.isEnabled = isButtonEnabled
        }
    }
}

出现错误“无此类模块语音”
我的问题是，这在macOS中可能吗？在Playground中可能吗？
先谢谢你了，杰什