AVSpeechSynthesizer 使用一次后无法正常工作

Question

我正在使用 AVSpeechSynthesizer 为一些文本数据配音，它第一次可以用，但之后就没用了。

我收到以下消息。

错误：-

AppName[859:101035] [AXTTSCommon] Failure starting audio queue alp! 2018-10-26 18:06:53.253536+0530 AppName[859:101035] [AXTTSCommon] _BeginSpeaking: couldn't begin playback

下面分享我的代码。

 let synth = AVSpeechSynthesizer()

 fileprivate func speakText(voiceOutdata: String )
 {
    let utterance = AVSpeechUtterance(string: voiceOutdata)
    utterance.voice = AVSpeechSynthesisVoice(language: "en-US")
    synth.speak(utterance)
 }

Answer 1

试试下面的代码：

let synthesizer = AVSpeechSynthesizer()
 fileprivate func speakText(voiceOutdata: String ){
    synthesizer.stopSpeakingAtBoundary(.Immediate)
    let utterance = AVSpeechUtterance(string: voiceOutdata)
    utterance.voice = AVSpeechSynthesisVoice(language: "en-US")
    synthesizer.speakUtterance(utterance)
}

Answer 2

您需要设置 AVAudioSession 才能执行此类任务。这是我的工作代码。希望这可以帮助。

func speakText(voiceOutdata: String ) {
    do {
        try AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.playAndRecord, mode: .default, options: .defaultToSpeaker)
        try AVAudioSession.sharedInstance().setActive(true, options: .notifyOthersOnDeactivation)
    } catch {
        print("audioSession properties weren't set because of an error.")
    }

    let utterance = AVSpeechUtterance(string: voiceOutdata)
    utterance.voice = AVSpeechSynthesisVoice(language: "en-US")

    let synth = AVSpeechSynthesizer()
    synth.speak(utterance)

    defer {
        disableAVSession()
    }
}

private func disableAVSession() {
    do {
        try AVAudioSession.sharedInstance().setActive(false, options: .notifyOthersOnDeactivation)
    } catch {
        print("audioSession properties weren't disable.")
    }
}

Answer 3

它对我有用：

do {
    try AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.playAndRecord, mode: .default, options: .defaultToSpeaker)
    try AVAudioSession.sharedInstance().setActive(true, options: .notifyOthersOnDeactivation)
} catch {
    print("audioSession properties weren't set because of an error.")
}

Answer 4

对我来说，问题是我的 speaker volume 关闭了，它也在 vibration mode

AVSpeechSynthesizer 使用一次后无法正常工作

AVSpeechSynthesizer is not working After use one time

text-to-speech

ios

swift