百度云语音识别

最近公司做项目，需要用到语音识别，所以自己根据百度云文档以及从网上查找的一些资源作出以下总结：

一，准备工作

1，新建一个项目

2，在百度云开放平台创建应用，控制台>产品服务>人工智能>百度语音

3，创建完应用后获得APPID，APPkey，APP秘密。

二，配置环境

1，下载百度云语音识别SDK文件及三方库文件，并将文件导入工程，注意：BDVoiceRecognitionClientResources文件选择创建文件夹参考这一项。如下图所示

2，导入依赖库文件，如图所示

3，打开目标下建立设置，双击其他链接器标志，添加-ObjC，启用Bitcode设置为否。

4，打开构建阶段下编译源，双击BDVRSConfig.m文件，添加-fno-objc-arc设置为弧可访问。

三，最爱的上代码

#import "ViewController.h"
#import "BDRecognizerViewController.h"
#import "BDVRSConfig.h"

const NSString* API_KEY = @"v9y5Rr9qVRzx0ghomfqucP76";
const NSString* SECRET_KEY = @"92EFloWuYlGqwc2cXVoNTdc9VZBLcqwW";
const NSString* APP_ID = @"11678423";

@interface ViewController ()<BDRecognizerViewDelegate>
//创建识别控件
@property (nonatomic, strong) BDRecognizerViewController *recognizerViewController;
@property(nonatomic,strong)UIButton *voiceRecogButton;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    //在线语音识别
    [self createUI];
}

- (void)createUI{
    
    self.voiceRecogButton = [[UIButton alloc]initWithFrame:CGRectMake(20, 80, 375, 40)];
    self.voiceRecogButton.backgroundColor = [UIColor redColor];
    [self.voiceRecogButton setTitle:@"开始语音识别" forState:UIControlStateNormal];
    [self.voiceRecogButton addTarget:self action:@selector(startVoice:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:self.voiceRecogButton];
    
}
- (void)startVoice:(UIButton *)btn{
    //创建临时识别控件
    BDRecognizerViewController *tmpRecognizerViewController = [[BDRecognizerViewController alloc]initWithOrigin:CGPointMake(40, 120) withTheme:[BDVRSConfig sharedInstance].theme];
    //全屏UI
    if ([[BDVRSConfig sharedInstance].theme.name isEqualToString:@"全屏亮蓝"]) {
        tmpRecognizerViewController.enableFullScreenMode = YES;//全屏模式
    }
    //设置代理
    tmpRecognizerViewController.delegate = self;
    //将临时识别控件赋给全局识别控件
    self.recognizerViewController = tmpRecognizerViewController;
    
    //设置识别参数
    BDRecognizerViewParamsObject *paramObject = [[BDRecognizerViewParamsObject alloc]init];
    //开发者信息（在百度云开放平台创建应用获得）
    paramObject.apiKey = API_KEY;
    paramObject.secretKey = SECRET_KEY;
    //设置是否需要语义理解，只在搜索模式有效
    paramObject.isNeedNLU = [BDVRSConfig sharedInstance].isNeedNLU;
    //设置识别语言
    paramObject.language = [BDVRSConfig sharedInstance].recognitionLanguage;
    //设置识别模式，分为搜索和输入
    paramObject.recogPropList = @[[BDVRSConfig sharedInstance].recognitionProperty];
    //设置城市ID，当识别属性包含EVoiceRecognitionPropertyMap时有效
    paramObject.cityID = 1;
    //开启联系人识别
//    paramObject.enableContacts = YES;
    //设置显示效果，是否开启连续上屏
    if ([BDVRSConfig sharedInstance].resultContinuousShow) {
        paramObject.resultShowMode = BDRecognizerResultShowModeContinuousShow;
    }else{
        paramObject.resultShowMode = BDRecognizerResultShowModeWholeShow;
    }
    //设置提示音开关是否打开，默认打开
    if ([BDVRSConfig sharedInstance].uiHintMusicSwitch) {
        paramObject.recordPlayTones = EBDRecognizerPlayTonesRecordPlay;
    }else{
        paramObject.recordPlayTones = EBDRecognizerPlayTonesRecordForbidden;
    }
    paramObject.isShowTipAfter3sSilence = NO;
    paramObject.isShowHelpButtonWhenSilence = NO;
//    paramsObject.tipsTitle = @"可以使用如下指令记账";
//    paramsObject.tipsList = [NSArray arrayWithObjects:@"我要记账", @"买苹果花了十块钱", @"买牛奶五块钱", @"第四行滚动后可见", @"第五行是最后一行", nil];
    paramObject.appCode = APP_ID;
    //识别模型模拟路径
    paramObject.datFilePath = [[NSBundle mainBundle] pathForResource:@"s_1" ofType:@""];
    if ([[BDVRSConfig sharedInstance].recognitionProperty intValue] == EVoiceRecognitionPropertyMap) {
        paramObject.LMDatFilePath = [[NSBundle mainBundle] pathForResource:@"s_2_Navi" ofType:@""];
    } else if ([[BDVRSConfig sharedInstance].recognitionProperty intValue] == EVoiceRecognitionPropertyInput) {
        paramObject.LMDatFilePath = [[NSBundle mainBundle] pathForResource:@"s_2_InputMethod" ofType:@""];
    }
    
    paramObject.recogGrammSlot = @{@"$name_CORE" : @"张三\n李四\n",
                                    @"$song_CORE" : @"小苹果\n朋友\n",
                                    @"$app_CORE" : @"QQ\n百度\n微信\n百度地图\n",
                                    @"$artist_CORE" : @"刘德华\n周华健\n"};
    //开始识别
    [self.recognizerViewController startWithParams:paramObject];
}
#pragma mark - delegate mathod
//返回语音识别结果
- (void)onEndWithViews:(BDRecognizerViewController *)aBDRecognizerViewController withResults:(NSArray *)aResults{
    if ([[BDVoiceRecognitionClient sharedInstance] getRecognitionProperty] != EVoiceRecognitionPropertyInput) {
        NSMutableArray *audioResultData = (NSMutableArray *)aResults;
        NSMutableString *tmpString = [[NSMutableString alloc]initWithString:@""];
        for (int i = 0; i < [audioResultData count]; i ++) {
            [tmpString appendFormat:@"%@\r\n",[audioResultData objectAtIndex:i]];
        }
        NSLog(@"识别结果： %@",tmpString);
        [self showWithResultString:tmpString];
    }else{
        NSString *tmpString = [[BDVRSConfig sharedInstance]composeInputModeResult:aResults];
        NSLog(@"识别结果： %@",tmpString);
        [self showWithResultString:tmpString];
    }
}
- (void)showWithResultString:(NSString *)resultStr{
    
    UIAlertController *alert = [UIAlertController alertControllerWithTitle:nil message:resultStr preferredStyle:UIAlertControllerStyleAlert];
    [alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleCancel handler:nil]];
    [self presentViewController:alert animated:YES completion:nil];
}

四，演示百度云下载地址：百度云语音识别演示密码：巴雷克

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