1.导入框架 AVFoundation
注意：三个关键类
AVSpeechSynthesizer: 可以假想成一个可以说话的人
AVSpeechSynthesisVoice: 可以假想成人的声音
AVSpeechUtterance: 可以假想成要说的一段话
#import <Foundation/Foundation.h>
@interface TmfSpeakTool : NSObject
- (void)transtoVoiceWithString:(NSString *)str;
- (void)pauseAv;
@end
#import <AVFoundation/AVFoundation.h>
@interface TmfSpeakTool ()<AVSpeechSynthesizerDelegate>
@property (nonatomic, strong) AVSpeechSynthesizer *aVSpeechSynthesizer;
//@property(nonatomic)float pitchMultiplier;// [0.5 - 2] Default = 1，声调，不怕逗死你就设成2
@end
@implementation TmfSpeakTool
- (AVSpeechSynthesizer *)aVSpeechSynthesizer{
if (!_aVSpeechSynthesizer) {
_aVSpeechSynthesizer = [[AVSpeechSynthesizer alloc] init];
_aVSpeechSynthesizer.delegate = self;
}
return _aVSpeechSynthesizer;
}
- (void)pauseAv{
if (self.aVSpeechSynthesizer.paused) {
[self.aVSpeechSynthesizer continueSpeaking];
}else{
[self.aVSpeechSynthesizer pauseSpeakingAtBoundary:AVSpeechBoundaryImmediate];
}
}
- (void)transtoVoiceWithString:(NSString *)str{
if (self.aVSpeechSynthesizer.speaking)
return;
AVSpeechUtterance * aVSpeechUtterance = [[AVSpeechUtterance alloc] initWithString:str];
aVSpeechUtterance.rate = AVSpeechUtteranceDefaultSpeechRate;// 设置语速，范围0-1，注意0最慢，1最快；
aVSpeechUtterance.voice =[AVSpeechSynthesisVoice voiceWithLanguage:@"zh-CN"];//设置发音，这是中文普通话
[self.aVSpeechSynthesizer speakUtterance:aVSpeechUtterance];//开始阅读
}
#pragma mark - =========AVSpeechSynthesizerDelegate =========
- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didStartSpeechUtterance:(AVSpeechUtterance *)utterance{
NSLog(@"开始阅读");
}
- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didFinishSpeechUtterance:(AVSpeechUtterance *)utterance{
[self.aVSpeechSynthesizer stopSpeakingAtBoundary:AVSpeechBoundaryImmediate];
NSLog(@"阅读完毕");
}
- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didPauseSpeechUtterance:(AVSpeechUtterance *)utterance{
NSLog(@"阅读暂停");
}
- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didContinueSpeechUtterance:(AVSpeechUtterance *)utterance{
NSLog(@"阅读继续");
}
- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didCancelSpeechUtterance:(AVSpeechUtterance *)utterance{
}
- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer willSpeakRangeOfSpeechString:(NSRange)characterRange utterance:(AVSpeechUtterance *)utterance{
}
