ios下的語音開發——科大訊飛使用

科大訊飛是國內做的比較好的語音開發sdk，首先在網站上註冊賬號等一系列流程下來之後，獲得id的值

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptionsdang

{

//xxxxxxx是自己的id的值，timeout是超時時間

    NSString *initString = [[NSString alloc] initWithFormat:@"appid=%@,timeout=%@",@"xxxxxxx",@"20000"];

    //所有服務啟動前，需要確保執行createUtility

    [IFlySpeechUtility createUtility:initString];

}

設定完開啟之後便要對其定義屬性和進行初始化

#pragma mark - 語音識別使用的屬性和控制元件

@property (nonatomic, strong) NSString *pcmFilePath;//音訊檔案路徑

@property (nonatomic, strong) IFlyRecognizerView *iflyRecognizerView;//帶介面的識別物件

@property (nonatomic, strong) IFlyDataUploader *uploader;//資料上傳物件

@property (nonatomic, strong) PopupView *popUpView;//介面

@property (nonatomic,strong) NSString *result ;//聽寫結果

 #pragma mark - 語音部分

-(void)viewDidLoad

{

    [super viewDidload];

    

    [self Call_JS_Voice];

}

-(void)viewWillAppear:(BOOL)animated

{

    [self initRecognizer];//語音初始化

    

    _result = [NSString new];//語音結果

}

-(void)viewDidDisappear:(BOOL)animated

{

    [_iflyRecognizerView cancel]; //取消識別

    [_iflyRecognizerView setDelegate:nil];

    [_iflyRecognizerView setParameter:@"" forKey:[IFlySpeechConstant PARAMS]];

}

/**

 初始化語音引數

 */

-(void)initRecognizer

{

    //有介面

    

    //單例模式，UI的例項

    if (_iflyRecognizerView == nil) {

        //UI顯示劇中

        _iflyRecognizerView= [[IFlyRecognizerView alloc] initWithCenter:self.view.center];

        

        [_iflyRecognizerView setParameter:@"" forKey:[IFlySpeechConstant PARAMS]];

        

        //設定聽寫模式

        [_iflyRecognizerView setParameter:@"iat" forKey:[IFlySpeechConstant IFLY_DOMAIN]];

        

    }

    _iflyRecognizerView.delegate = self;

    

    if (_iflyRecognizerView != nil) {

        

        //設定最長錄音時間

        [_iflyRecognizerView setParameter:@"30000" forKey:[IFlySpeechConstant SPEECH_TIMEOUT]];

        //設定後端點

        [_iflyRecognizerView setParameter:@"3000" forKey:[IFlySpeechConstant VAD_EOS]];

        //設定前端點

        [_iflyRecognizerView setParameter:@"3000" forKey:[IFlySpeechConstant VAD_BOS]];

        //網路等待時間

        [_iflyRecognizerView setParameter:@"20000" forKey:[IFlySpeechConstant NET_TIMEOUT]];

        

        //設定取樣率，推薦使用16K

        [_iflyRecognizerView setParameter:@"16000" forKey:[IFlySpeechConstant SAMPLE_RATE]];

        

        [_iflyRecognizerView setParameter:@"zh_cn" forKey:[IFlySpeechConstant LANGUAGE]];

        //設定是否返回標點符號

        [_iflyRecognizerView setParameter:@"0" forKey:[IFlySpeechConstant ASR_PTT]];

        

    }

}

/**

 有介面，聽寫結果回撥

 resultArray：聽寫結果

 isLast：表示最後一次

 ****/

- (void)onResult:(NSArray *)resultArray isLast:(BOOL)isLast

{

    //根據聽寫的結果跳轉到搜尋

    NSMutableString *result = [[NSMutableString alloc] init];

    NSDictionary *dic = [resultArray objectAtIndex:0];

    

    for (NSString *key in dic) {

        [result appendFormat:@"%@",key];

    }

    _result = [NSString stringWithFormat:@"%@%@",_result,result];

    [_iflyRecognizerView cancel];

}

/**

 開啟語音

 */

-(void)Call_JS_Voice

{

    

    if(_iflyRecognizerView == nil)

    {

        [self initRecognizer ];

    }

    

    //設定音訊來源為麥克風

    [_iflyRecognizerView setParameter:IFLY_AUDIO_SOURCE_MIC forKey:@"audio_source"];

    

    //設定聽寫結果格式為json

    [_iflyRecognizerView setParameter:@"plain" forKey:[IFlySpeechConstant RESULT_TYPE]];

    

    //儲存錄音檔案，儲存在sdk工作路徑中，如未設定工作路徑，則預設儲存在library/cache下

    [_iflyRecognizerView setParameter:@"asr.pcm" forKey:[IFlySpeechConstant ASR_AUDIO_PATH]];

    

    _result = @"";

    

    [_iflyRecognizerView start];

}

/**

 開始講話

 */

- (void) onBeginOfSpeech

{

    NSLog(@"onBeginOfSpeech");

}

/**

 聽寫取消回撥

 ****/

- (void) onCancel

{

    NSLog(@"識別取消");

}

-(void)onError:(IFlySpeechError *)error

{

    

}

-(void)onResults:(NSArray *)results isLast:(BOOL)isLast

{

    

}