VoiceRecognition

VoiceRecognitionDetemineSilent.swift

open func speechRecognitionTask(_ task: SFSpeechRecognitionTask, didHypothesizeTranscription transcription: SFTranscription) {
    self.recognizedText = transcription.formattedString

    // Start judgment of silent time
    self.stopNoAudioDurationTimer()
    self.startNoAudioDurationTimer()
}

func startNoAudioDurationTimer() {
    self.stopTimer()
    noAudioDurationTimer = Timer.scheduledTimer(
        timeInterval: TimeInterval(self.noAudioDurationLimitSec),
        target: self,
        selector:#selector(InterruptEvent),
        userInfo: nil,
        repeats: false
    )
}

func stopNoAudioDurationTimer() {
    if noAudioDurationTimer != nil {
        noAudioDurationTimer?.invalidate()
        noAudioDurationTimer = nil
    }
}

@objc func InterruptEvent() {
    var ret = ""
    if audioEngine.isRunning {
        audioEngine.stop()
        recognitionRequest?.endAudio()
        ret = self.recognizedText
    }
    let inputNode = self.getInputNode()
    inputNode.removeTap(onBus: 0)
    self.recognitionRequest = nil
    self.recognitionTask = nil
    recognitionLimiter = nil
    noAudioDurationTimer = nil
    self.resetAVAudioSession()
    delegate?.ChickenVRManagerTimeout(self, ret)
}