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iOS7.0之后新添加了一些新的功能，里面就有系统自带的语音播报库， 需要 导入系统的AVFoundation 库

#import "ViewController.h" #import 
   
     @interface ViewController ()
    
      /** 播报的内容 */@property (nonatomic, readwrite , strong) AVSpeechSynthesizer *synth;/** 负责播放 */@property (nonatomic, readwrite , strong) AVSpeechUtterance *utterance; @end
    
   

基本使用

NSString *str = @"支付宝 到账 100万 元";self.utterance = [AVSpeechUtterance speechUtteranceWithString:str];//成功集成语音播报			//pitchMultiplier: 音高		//		//postUtteranceDelay: 读完一段后的停顿时间		//		//preUtteranceDelay: 读一段话之前的停顿		//rate: 读地速度, 系统提供了三个速度: AVSpeechUtteranceMinimumSpeechRate, AVSpeechUtteranceMaximumSpeechRate, AVSpeechUtteranceDefaultSpeechRate	self.utterance.rate = AVSpeechUtteranceDefaultSpeechRate;// 播报的语速			//	中式发音	AVSpeechSynthesisVoice *voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"zh-CN"];		//英式发音		//	AVSpeechSynthesisVoice *voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"en-GB"];		self.utterance.voice = voice;		self.synth = [[AVSpeechSynthesizer alloc] init];	self.synth.delegate = self;// 设置代理	[self.synth speakUtterance:self.utterance];

代理方法

//已经开始- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didStartSpeechUtterance:(AVSpeechUtterance *)utterance API_AVAILABLE(ios(7.0), watchos(1.0), tvos(7.0), macos(10.14)) {	}//已经说完- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didFinishSpeechUtterance:(AVSpeechUtterance *)utterance API_AVAILABLE(ios(7.0), watchos(1.0), tvos(7.0), macos(10.14)) { }//已经暂停- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didPauseSpeechUtterance:(AVSpeechUtterance *)utterance API_AVAILABLE(ios(7.0), watchos(1.0), tvos(7.0), macos(10.14)) { }//已经继续说话- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didContinueSpeechUtterance:(AVSpeechUtterance *)utterance API_AVAILABLE(ios(7.0), watchos(1.0), tvos(7.0), macos(10.14)) { }//已经取消说话- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didCancelSpeechUtterance:(AVSpeechUtterance *)utterance API_AVAILABLE(ios(7.0), watchos(1.0), tvos(7.0), macos(10.14)) { }//将要说某段话- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer willSpeakRangeOfSpeechString:(NSRange)characterRange utterance:(AVSpeechUtterance *)utterance API_AVAILABLE(ios(7.0), watchos(1.0), tvos(7.0), macos(10.14)) { }

参考：https://blog.csdn.net/zjpjay/article/details/92840463