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参数及完整示例

BDSSpeechSynthesizerParams.h 文件中包含了各类参数的使用说明，如果开发者想寻找一些功能的设置办法，请浏览该文件中的相关参数说明

语音合成器参数

合成参数

百度语音合成支持的参数用BDSSynthesizerParamKey类型表示，具体如下：

语音合成文本语言

语音合成文本语言用BDSSynthesizerLanguages类型表示，具体如下：

语音合成文本编码格式

语音合成文本编码格式用BDSSynthesizerTextEncodings类型表示，具体如下：

语音合成音频编码格式

不支持 mp3，支持AMR、OPUS。 语音合成音频编码格式用BDSSynthesizerAudioEncoding类型表示，具体如下：

关于AVAudioSession

SDK默认会将AudioSession的Category设置为AVAudioSessionCategoryPlayback，并在必要的时候调用setActive接口对外部音频进行打断及恢复，如果开发者不希望SDK对AudioSession进行操作自己管理，可以通过参数配置接口，把BDS_SYNTHESIZER_PARAM_ENABLE_AVSESSION_MGMT对应的value设置为NO，即可屏蔽SDK内部的操作，按照需求，设置BDS_SYNTHESIZER_PARAM_AUDIO_SESSION_CATEGORY_OPTIONS自行配置AudioSession。

完整示例

语音合成完整示例

-(void)configureOnlineTTS{
    
    [[BDSSpeechSynthesizer sharedInstance] setApiKey:API_KEY withSecretKey:SECRET_KEY];
    
    [[AVAudioSession sharedInstance]setCategory:AVAudioSessionCategoryPlayback error:nil];
    [[BDSSpeechSynthesizer sharedInstance] setSynthParam:@(0) forKey:BDS_SYNTHESIZER_PARAM_SPEAKER];
    
}

-(void)configureOfflineTTS{
    
    NSError *err = nil;
    // 在这里选择不同的离线音库（请在XCode中Add相应的资源文件），同一时间只能load一个离线音库。

根据网络状况和配置，SDK可能会自动切换到离线合成。
    NSString* offlineEngineSpeechData = [[NSBundle mainBundle] pathForResource:

@"Chinese_And_English_Speech_Female" ofType:@"dat"];
    
    NSString* offlineChineseAndEnglishTextData = [[NSBundle mainBundle]

 pathForResource:@"Chinese_And_English_Text" ofType:@"dat"];
    
    err = [[BDSSpeechSynthesizer sharedInstance] loadOfflineEngine:offlineChi

neseAndEnglishTextData speechDataPath:offlineEngineSpeechData licenseFilePath:nil withAppCode:APP_ID];
    if(err){
        [self displayError:err withTitle:@"Offline TTS init failed"];
        return;
    }
    [TTSConfigViewController loadedAudioModelWithName:@"Chinese female" forLanguage:@"chn"];
    [TTSConfigViewController loadedAudioModelWithName:@"English female" forLanguage:@"eng"];
}

-(void)test : {
    	// 获得合成器实例
    [[BDSSpeechSynthesizer sharedInstance] setSynthesizerDelegate:self];
	
	// 设置委托对象
	[[BDSSpeechSynthesizer sharedInstance] setSynthesizerDelegate:self];
	
	// 开始合成并播放
	NSError* speakError = nil;
	if([[BDSSpeechSynthesizer sharedInstance] speakSentence:@"您好" withError:&speakError] == -1){
		// 错误
		NSLog("错误: %ld, %@", (long)speakError.code, speakError.localizedDescription);
	}
	if([[BDSSpeechSynthesizer sharedInstance] speakSentence:@"今天天气真不错" withError:&speakError] == -1){
		// 错误
		NSLog("错误: %ld, %@", (long)speakError.code, speakError.localizedDescription);
	}
	if([[BDSSpeechSynthesizer sharedInstance] speakSentence:@"Today's weather 

is really good!" withError:&speakError] == -1){
		// 错误
		NSLog("错误: %ld, %@", (long)speakError.code, speakError.localizedDescription);
	}
}
	
	
	- (void)synthesizerStartWorkingSentence:(NSInteger)SynthesizeSentence
{
    NSLog(@"Began synthesizing sentence %ld", (long)SynthesizeSentence);
}

- (void)synthesizerFinishWorkingSentence:(NSInteger)SynthesizeSentence
{
    NSLog(@"Finished synthesizing sentence %ld", (long)SynthesizeSentence);
}

- (void)synthesizerSpeechStartSentence:(NSInteger)SpeakSentence
{
    NSLog(@"Began playing sentence %ld", (long)SpeakSentence);
}

- (void)synthesizerSpeechEndSentence:(NSInteger)SpeakSentence
{
    NSLog(@"Finished playing sentence %ld", (long)SpeakSentence);
}