iOS编程Text to Speech 及支持语言

iOS编程中Text to Speech的基本框架，需要包含头文件：

#import

基本编程框架：

头文件定义

@interface Text2Speech : NSObject

{

NSString * text;//需要发音的文本

float rate;//速率

float pitch;//音高

int timeInterval;//每句话的间隔

enum EnglishType voice;//英语的种类

AVSpeechSynthesizer* voiceSynthesizer;//合成器

BOOL speakFinished;//当前是否完成speech

NSString *speakingString;//正在合成器中的文本

}

-(void)speak:(NSString *)uterString;

-(BOOL)speakFinish:(NSString *)uterString;

-(void)stop;

-(void)pause;

-(void)continueSpeak;

//源文件代码

-(id)init{

if(self=[super init]){

NSLog(@"\n----------Text2Speech init OK----------\n");

self.rate= 1.0;

self.pitch =1.0;

self.timeInterval=300;

self.text=[NSString alloc];

self.text=@"";

self.speakFinished=false;

self.speakingString=@"";

self.voiceSynthesizer=[[AVSpeechSynthesizer alloc]init];

self.voiceSynthesizer.delegate=self;

logFlag=NO;

}

return self;

}

-(void)speak:(NSString *)uterString{

@autoreleasepool

{

AVSpeechUtterance* utterance=[[AVSpeechUtterance alloc]initWithString:uterString];

utterance.rate=self.rate;

utterance.pitchMultiplier=self.pitch;

utterance.postUtteranceDelay=0;

speakFinished=false;

switch(self.voice){

case EN_UK:

utterance.voice=[AVSpeechSynthesisVoice voiceWithLanguage:@"en-gb"];

break;

case EN_USA:

utterance.voice=[AVSpeechSynthesisVoice voiceWithLanguage:@"en-us"];

break;

case EN_CA:

utterance.voice=[AVSpeechSynthesisVoice voiceWithLanguage:@"en-ca"];

break;

case EN_AU:

utterance.voice=[AVSpeechSynthesisVoice voiceWithLanguage:@"en-au"];

break;

}

speakingString=@"";

[self.voiceSynthesizer speakUtterance:utterance];

}

}

- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer

didFinishSpeechUtterance:(AVSpeechUtterance *)utterance{

printTestMsg(@"speechSynthesizer", @"--finish speaking--",logFlag);

speakFinished=true;

}

- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer

willSpeakRangeOfSpeechString:(NSRange)characterRange

utterance:(AVSpeechUtterance *)utterance{

NSString *speechSting=utterance.speechString;

NSString *subString=[speechSting substringWithRange:characterRange];

self.speakingString=subString;

printTestMsg(@"speechSynthesizer", @"-------the current speaking string---", NO);

}

-(BOOL)speakFinish:(NSString *)uterString{

//need add code

return speakFinished;

}

-(void)stop{

[self.voiceSynthesizer stopSpeakingAtBoundary:AVSpeechBoundaryImmediate];

}

-(void)pause{

[self.voiceSynthesizer pauseSpeakingAtBoundary:AVSpeechBoundaryImmediate];

}

-(void)continueSpeak{

[self.voiceSynthesizer continueSpeaking];

}

@end

/*

BOOL speechPaused = 0;

- (void)viewDidLoad

{

[super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

self.synthesizer = [[AVSpeechSynthesizer alloc] init];

speechPaused = NO;

self.synthesizer.delegate = self;

}

- (IBAction)playPauseButtonPressed:(UIButton *)sender {

[self.textToSpeak resignFirstResponder];

if (speechPaused == NO) {

[self.playPauseButton setTitle:@"Pause" forState:UIControlStateNormal];

[self.synthesizer continueSpeaking];

speechPaused = YES;

} else {

[self.playPauseButton setTitle:@"Play" forState:UIControlStateNormal];

speechPaused = NO;

[self.synthesizer pauseSpeakingAtBoundary:AVSpeechBoundaryImmediate];

}

if (self.synthesizer.speaking == NO) {

AVSpeechUtterance *utterance = [[AVSpeechUtterance alloc] initWithString:self.textToSpeak.text];

//utterance.rate = AVSpeechUtteranceMinimumSpeechRate;

utterance.voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"en-au"];

[self.synthesizer speakUtterance:utterance];

}

}

-(void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didFinishSpeechUtterance:(AVSpeechUtterance *)utterance {

[self.playPauseButton setTitle:@"Play" forState:UIControlStateNormal];

speechPaused = NO;

NSLog(@"Playback finished");

}

- (void)didReceiveMemoryWarning

{

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

*/

Text To Speech所支持的语言类型，请参考

Arabic (Saudi Arabia) - ar-SA
Chinese (China) - zh-CN
Chinese (* SAR China) - zh-HK
Chinese (*) - zh-TW
Czech (Czech Republic) - cs-CZ
Danish (Denmark) - da-DK
Dutch (Belgium) - nl-BE
Dutch (Netherlands) - nl-NL
English (Australia) - en-AU
English (Ireland) - en-IE
English (South Africa) - en-ZA
English (United Kingdom) - en-GB
English (United States) - en-US
Finnish (Finland) - fi-FI
French (Canada) - fr-CA
French (France) - fr-FR
German (Germany) - de-DE
Greek (Greece) - el-GR
Hindi (India) - hi-IN
Hungarian (Hungary) - hu-HU
Indonesian (Indonesia) - id-ID
Italian (Italy) - it-IT
Japanese (Japan) - ja-JP
Korean (South Korea) - ko-KR
Norwegian (Norway) - no-NO
Polish (Poland) - pl-PL
Portuguese (Brazil) - pt-BR
Portuguese (Portugal) - pt-PT
Romanian (Romania) - ro-RO
Russian (Russia) - ru-RU
Slovak (Slovakia) - sk-SK
Spanish (Mexico) - es-MX
Spanish (Spain) - es-ES
Swedish (Sweden) - sv-SE
Thai (Thailand) - th-TH
Turkish (Turkey) - tr-TR