iOS 系统自带的文本转语音

第一步：引入头文件

#import <AVFoundation/AVSpeechSynthesis.h>

第二步：创建speechSynthesizer合成器实例

AVSpeechSynthesizer *speechSynthesizer = [[AVSpeechSynthesizer alloc]init];

第三步：根据你要转换的文本，创建一个属于你的专属“代言人”

AVSpeechUtterance *utteranceNuoYi = [[AVSpeechUtterance alloc]initWithString:@"Attraper des étoiles "];

AVSpeechUtterance *utteranceLiuYe = [[AVSpeechUtterance alloc]initWithString:@"Noé, chéri "];

第四步：根据你对代言人的要求，可以更改代言人的voice、pitch、rate

utteranceNuoYi.voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"fr-CA"];

utteranceLiuYe.voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"fr-CA"];

//音高pitch
// [0.5 - 2] Default = 1,就是声音的粗细问题。
utteranceNuoYi.pitchMultiplier = 0.7;

//说话的快慢
//Values are pinned between AVSpeechUtteranceMinimumSpeechRate and AVSpeechUtteranceMaximumSpeechRate.
utteranceNuoYi.rate = AVSpeechUtteranceMinimumSpeechRate;

//调整音量的高低。
// [0-1] Default = 1
utteranceNuoYi.volume = 0.8;

第五步：把你的代言人 添加到你的整个流程上，之后就可以发言了。

根据API：If the synthesizer is speaking, utterances are added to a queue and spoken in the order they are received.说明你的代言人是可以有多个，并且你是以一种队列(FIFO)的方式管理他们的。

[speechSynthesizer speakUtterance:utteranceNuoYi];

[speechSynthesizer speakUtterance:utteranceLiuYe];

以上就已经实现了文本转语音的功能。

带有详细解释的思维导图总结