Swift -如何将文本到语音语言转换为描述性字符串

import AVFoundation

class SpeechSynthesizer: NSObject, AVSpeechSynthesizerDelegate {
    let synthesizer = AVSpeechSynthesizer()
    
    func convertTextToSpeech(text: String) {
        let utterance = AVSpeechUtterance(string: text)
        utterance.voice = AVSpeechSynthesisVoice(language: "en-US") // 设置语言为英语
        utterance.volume = 1.0 // 设置音量（0.0-1.0）
        utterance.rate = 0.5 // 设置语速（0.0-1.0）
        utterance.pitchMultiplier = 1.0 // 设置音调（0.5-2.0）
        
        synthesizer.delegate = self
        synthesizer.speak(utterance)
    }
    
    // AVSpeechSynthesizerDelegate方法，可选实现
    func speechSynthesizer(_ synthesizer: AVSpeechSynthesizer, didFinish utterance: AVSpeechUtterance) {
        // 转换完成后的回调处理
    }
}

// 使用示例
let speechSynthesizer = SpeechSynthesizer()
speechSynthesizer.convertTextToSpeech(text: "Hello, World!")