Text to speech in objective-c iPhone

Question

I am developing an application in which I have to play string as an audio.

I am using http://translate.google.com/translate_tts?tl=en&q=Hello API to speak the string but it is a little bit slow.

Is there any library in objective-c to play string as an audio "Text To Speech".

Answer 1

Look at the classes AVSpeechUtterance and AVSpeechSynthesizer in io7. Basically you can just do the following.

     AVSpeechUtterance *utterance = [AVSpeechUtterance speechUtteranceWithString:text];
     AVSpeechSynthesizer *syn = [[[AVSpeechSynthesizer alloc] init]autorelease];
    [syn speakUtterance:utterance];

Answer 2

import frameworks :

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

.m file code

NSString *str = @"Hello friend, how are you?";

AVSpeechSynthesizer *synthesizer = [[AVSpeechSynthesizer alloc]init];

AVSpeechUtterance *speechutt = [AVSpeechUtterance speechUtteranceWithString:strtext];
 speechutt.volume=90.0f;
 speechutt.rate=0.50f;
 speechutt.pitchMultiplier=0.80f;
[speechutt setRate:0.3f];
speechutt.voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"en-us"];
[synthesizer speakUtterance:speechutt];

voiceWithLanguage option in any language to speek supported that.

Arabic (Saudi Arabia) - ar-SA
Chinese (China) - zh-CN
Chinese (Hong Kong SAR China) - zh-HK
Chinese (Taiwan) - 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
French (Canada) - fr-CA
French (France) - fr-FR
Finnish (Finland) - fi-FI
German (Germany) - de-DE
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
Romanian (Romania) - ro-RO
Russian (Russia) - ru-RU
Slovak (Slovakia) - sk-SK
Spanish (Mexico) - es-MX
Swedish (Sweden) - sv-SE
Turkish (Turkey) - tr-TR