iOS编程Text to Speech 及支持语言
#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
