语音识别

1.导入百度语音的SDK

2.导入头文件：

#import "BDRecognizerViewController.h"

#import "BDRecognizerViewDelegate.h"

#import "BDVoiceRecognitionClient.h"

3.创建对象及页面所需控件（并把协议协商）

{

    //语音界面

    BDRecognizerViewController  * bdrv;

    NSMutableData * allData;

    //参数设置  key  秘钥

    BDRecognizerViewParamsObject  * bdvp;

    UILabel * label;

}

4.ViewDidLoad里的：

//Lable初始化

    label = [[UILabel alloc]initWithFrame:CGRectMake(50,100,300, 50)];

    label.backgroundColor = [UIColor blueColor];

    [self.view  addSubview:label];

    //这里用一个button来实现

    UIButton  * b = [UIButton buttonWithType:UIButtonTypeRoundedRect];

    b.frame=CGRectMake(100,400,100,30);

    [b setTitle: @"click"  forState:UIControlStateNormal];

    [b addTarget:self  action:@selector(click)  forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:b];

    //主题设置

    BDTheme *me = [BDTheme lightGreenTheme];

    bdrv = [[BDRecognizerViewController alloc]initWithOrigin:CGPointMake(20, 180) withTheme:me];

    //全屏幕

    bdrv.enableFullScreenMode = YES;

    bdrv.delegate = self;

    bdvp = [[BDRecognizerViewParamsObject  alloc]init];

    //bdvp.productID 不用设置

    bdvp.apiKey = @"f8LM61EyDFMQYYXVshiosbbe";

    bdvp.secretKey = @"H1dXajmVmQh2p1SbpW8ZnEvX8SXSgZUL";

5.button方法

- (void) click {

    allData  =  [[NSMutableData  alloc]init];

    [bdrv  startWithParams : bdvp];

}

6.

-  (void) onRecordDataArrived:(NSData*)recordData sampleRate:(int)sampleRate{

    [allData appendData:recordData];

}

//此方法是将语音传递到lable上

-  (void) onPartialResults:(NSString*)results

{

    label.text= results;

}