iOS speech synthesis

By IOS

Add reference

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import< /span> AVFoundation

play voice

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let player = AVSpeechSynthesizer(); 
player.delegate = self;
let u = AVSpeechUtterance(string: "The weather is nice today"); span>
u.voice = AVSpeechSynthesisVoice(language: "zh-CN" );
u.volume = 1.0;//volume[0-1 ] Default = 1
u.rate = 0.48;/ /Play speed
u.pitchMultiplier = 1.0;// Play base pitch [0.5-2] Default = 1
player.speakUtterance(u);

Below iPhone6 rate is set to 0.1Otherwise, you will read the pits of iOS very quickly

agent method

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//Start playing
func (synthesizer: AVSpeechSynthesizer, didStartSpeechUtterance utterance: AVSpeechUtterance) {
 < span class="built_in">print("start playing")
} 

//Playing
< sp an class="line">func (synthesizer: AVSpeechSynthesizer, willSpeakRangeOfSpeechString characterRange: NSRange, utterance: AVSpeechUtterance)  {
 let process = Double span>(characterRange.location) / Double(utterance.speechString.characters.count);
  print("During playback, the playback progress is: (process)")
}

//Playing finished
func (synthesizer: AVSpeechSynthesizer, didFinishSpeechUtterance utterance: AVSpeechUtterance) {
 print ("Playing completed")
}

common method

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//Stop playing
player.stopSpeakingAtBoundary(AVSpeechBoundary.Immediate);
//Pause playback
 player.pauseSpeakingAtBoundary(AVSpeechBoundary.Immediate);

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