1、CHiOSSpeech.h

//
// 文 件 名:CHiOSSpeech.h
// 
// 版權所有:Copyright ? 2018年 leLight. All rights reserved.
// 創 建 者:leLight 
// 創建日期:2018/7/30.
// 文檔說明:蘋果原生文字轉語音播報.
// 修 改 人:
// 修改日期:
// 

#import <Foundation/Foundation.h>
#import <AVFoundation/AVFoundation.h>

@protocol CHiOSSpeechDelegate <NSObject>
@optional
/************ 開始播放 *****************************/
- (void)speechSynthesizer:(AVSpeechSynthesizer*)synthesizer didStartSpeechUtterance:(AVSpeechUtterance*)utterance;
/************ 完成播放 *****************************/
- (void)speechSynthesizer:(AVSpeechSynthesizer*)synthesizer didFinishSpeechUtterance:(AVSpeechUtterance*)utterance;
/************ 播放中止 *****************************/
- (void)speechSynthesizer:(AVSpeechSynthesizer*)synthesizer didPauseSpeechUtterance:(AVSpeechUtterance*)utterance;
/************ 恢復播放 *****************************/
- (void)speechSynthesizer:(AVSpeechSynthesizer*)synthesizer didContinueSpeechUtterance:(AVSpeechUtterance*)utterance;
/************ 播放取消 *****************************/
- (void)speechSynthesizer:(AVSpeechSynthesizer*)synthesizer didCancelSpeechUtterance:(AVSpeechUtterance*)utterance;

@end

@interface CHiOSSpeech : NSObject

/** 文字播報代理 */
@property (nonatomic, weak) id<CHiOSSpeechDelegate> delegate;

/************ 單例對象 *****************************/
+ (CHiOSSpeech *)sharedInstance;
/************ 開始播放 *****************************/
- (void)startSpeekWithString:(NSString *)string;
/************ 暫停播放 *****************************/
- (void)pauseSpeaking;
/************ 繼續播放 *****************************/
- (void)continueSpeaking;

// 初始化配置:這裏不設置則使用默認參數
/**
 *  設置播放的聲音參數 如果選擇默認請傳入 -1.0
 *
 *  @param aVolume          音量（0.0~1.0）默認為1.0
 *  @param aRate            語速（0.0~1.0）默認為1.0
 *  @param aPitchMultiplier 語調 (0.5-2.0)默認為1.0
  *  @param languageCode    語言          默認為 中文普通話:@"zh-CN"
 */
- (void)setDefaultWithVolume:(float)aVolume
                        rate:(CGFloat)aRate
             pitchMultiplier:(CGFloat)aPitchMultiplier
                languageCode:(NSString *)languageCode;

@end
 

2、CHiOSSpeech.m

//
// 文 件 名:CHiOSSpeech.m
// 
// 版權所有:Copyright ? 2018年 leLight. All rights reserved.
// 創 建 者:leLight 
// 創建日期:2018/7/30.
// 文檔說明:蘋果原生文字轉語音播報.
// 修 改 人:
// 修改日期:
// 

#import "CHiOSSpeech.h"

@interface CHiOSSpeech () <AVSpeechSynthesizerDelegate>
{
    AVSpeechSynthesizer      *av;
    AVSpeechUtterance        *utterance;
}

/** 語速 */
@property(nonatomic, assign) float rate;
/** 音量 */
@property(nonatomic, assign) float volume;
/** 音調 */
@property(nonatomic, assign) float pitchMultiplier;
/** 音調 */
@property(nonatomic, copy) NSString *languageCode;

@end

@implementation CHiOSSpeech

/************ 單例對象 *****************************/
+ (CHiOSSpeech *)sharedInstance {
    static CHiOSSpeech *sharedClient = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        sharedClient = [[CHiOSSpeech alloc] init];
    });
    return sharedClient;
}

/************ 初始化創建 *****************************/
- (instancetype)init {
    self = [super init];
    if (self) {
        // 初始化對象
        av = [[AVSpeechSynthesizer alloc] init];
        // 掛上代理
        av.delegate = self;
        // 初始化配置
        [self setDefaultWithVolume:-1.0 rate:-1.0 pitchMultiplier:-1.0 languageCode:@"zh-CN"];
        
    };
    return self;
}

/************ 開始播放 *****************************/
- (void)startSpeekWithString:(NSString *)string {
    
    utterance = [[AVSpeechUtterance alloc] initWithString:string];
    // 設置語速，範圍0-1，註意0最慢，1最快；AVSpeechUtteranceMinimumSpeechRate最慢，AVSpeechUtteranceMaximumSpeechRate最快
    utterance.rate = 0.5;
    //設置發音，這是中文普通話:@"zh-CN"
    AVSpeechSynthesisVoice *voice = [AVSpeechSynthesisVoice voiceWithLanguage:self.languageCode];
    utterance.voice = voice;
    // 設置語速
    utterance.rate = self.rate;
    // 設置音量（0.0~1.0）默認為1.0
    utterance.volume = self.volume;
    // 設置語調 (0.5-2.0)
    utterance.pitchMultiplier = self.pitchMultiplier;
    // 目的是讓語音合成器播放下一語句前有短暫的暫停
    utterance.postUtteranceDelay = 1;
    
    // 開始
    [av speakUtterance:utterance];
}

/************ 暫停播放 *****************************/
- (void)pauseSpeaking {
    [av pauseSpeakingAtBoundary:AVSpeechBoundaryWord];
}

/************ 繼續播放 *****************************/
- (void)continueSpeaking {
    // 如果暫停則恢復，會從暫停的地方繼續
    [av continueSpeaking];
}

#pragma mark ***************************** AVSpeechSynthesizerDelegate ***********************************************
/************ 開始播放 *****************************/
- (void)speechSynthesizer:(AVSpeechSynthesizer*)synthesizer didStartSpeechUtterance:(AVSpeechUtterance*)utterance {
    
    CHLog(@"是否正在播放：%d", synthesizer.isSpeaking);
    CHLog(@"是否處於播放：%d", synthesizer.isPaused);
    CHLog(@"播放的內容：%@", utterance.speechString);
    
    CHLog(@"---開始播放");
    
    if([self.delegate respondsToSelector:@selector(speechSynthesizer: didStartSpeechUtterance:)]) {
        [self.delegate speechSynthesizer:synthesizer didStartSpeechUtterance:utterance];
    }
}

/************ 完成播放 *****************************/
- (void)speechSynthesizer:(AVSpeechSynthesizer*)synthesizer didFinishSpeechUtterance:(AVSpeechUtterance*)utterance {
    CHLog(@"---完成播放");
    
    if([self.delegate respondsToSelector:@selector(speechSynthesizer: didFinishSpeechUtterance:)]) {
        [self.delegate speechSynthesizer:synthesizer didFinishSpeechUtterance:utterance];
    }
}

/************ 播放中止 *****************************/
- (void)speechSynthesizer:(AVSpeechSynthesizer*)synthesizer didPauseSpeechUtterance:(AVSpeechUtterance*)utterance {
    CHLog(@"---播放中止");
    
    if([self.delegate respondsToSelector:@selector(speechSynthesizer: didPauseSpeechUtterance:)]) {
        [self.delegate speechSynthesizer:synthesizer didPauseSpeechUtterance:utterance];
    }
}

/************ 恢復播放 *****************************/
- (void)speechSynthesizer:(AVSpeechSynthesizer*)synthesizer didContinueSpeechUtterance:(AVSpeechUtterance*)utterance {
    CHLog(@"---恢復播放");
    
    if([self.delegate respondsToSelector:@selector(speechSynthesizer: didContinueSpeechUtterance:)]) {
        [self.delegate speechSynthesizer:synthesizer didContinueSpeechUtterance:utterance];
    }
}

/************ 播放取消 *****************************/
- (void)speechSynthesizer:(AVSpeechSynthesizer*)synthesizer didCancelSpeechUtterance:(AVSpeechUtterance*)utterance {
    CHLog(@"---播放取消");
    
    if([self.delegate respondsToSelector:@selector(speechSynthesizer: didCancelSpeechUtterance:)]) {
        [self.delegate speechSynthesizer:synthesizer didCancelSpeechUtterance:utterance];
    }
}

// 初始化配置
/**
 *  設置播放的聲音參數 如果選擇默認請傳入 -1.0
 *
 *  @param aVolume          音量（0.0~1.0）默認為1.0
 *  @param aRate            語速（0.0~1.0）默認為1.0
 *  @param aPitchMultiplier 語調 (0.5-2.0)默認為1.0
 *  @param languageCode     語言          默認為 中文普通話:@"zh-CN"
 */
- (void)setDefaultWithVolume:(float)aVolume rate:(CGFloat)aRate pitchMultiplier:(CGFloat)aPitchMultiplier languageCode:(NSString *)languageCode {
    
    self.rate   = aRate;
    self.volume = aVolume;
    self.pitchMultiplier = aPitchMultiplier;
    self.languageCode = languageCode;
    
    if (aRate == -1.0) {
        self.rate = 0.5;
    }
    if (aVolume == -1.0) {
        self.volume = 1.0;
    }
    if (aPitchMultiplier == -1.0) {
        self.pitchMultiplier = 1;
    }
}

@end
 

蘋果原生文字轉語音播報