科大讯飞(1) 语音听写(语音转换成文字)

1 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
2     // Override point for customization after application launch.
3     // 登录科大讯飞语音平台
4     NSString *initString = [[NSString alloc] initWithFormat:@"appid=%@", @"5750da0e"];
5     [IFlySpeechUtility createUtility:initString];
6     return YES;
7 }

 1 //第一步：引入库文件
 2 //科大讯飞语音识别功能回调方法的接口文件
 3 #import <iflyMSC/IFlyRecognizerViewDelegate.h>
 4 //科大讯飞语音识别功能的声音识别视图
 5 #import <iflyMSC/IFlyRecognizerView.h>
 6 //科大讯飞语音识别功能中定义的常量
 7 #import <iflyMSC/IFlySpeechConstant.h>
 8 
 9 // 遵循代理协议
10 @interface FirstViewController ()<IFlyRecognizerViewDelegate>
11 
12 @property (weak, nonatomic) IBOutlet UITextView *wordTextView;
13 
14 /// 语音识别对象
15 @property (nonatomic, strong) IFlyRecognizerView *iflyRecognizerView;
16 
17 /// 可变字符串接收相关的结果
18 @property (nonatomic, copy) NSMutableString *resultStr;
19 @end
20 
21 @implementation FirstViewController
22 
23 - (void)viewDidLoad {
24     [super viewDidLoad];
25     /**
26      语音识别文字
27      */
28     // 初始化语音识别控件
29     self.iflyRecognizerView = [[IFlyRecognizerView alloc] initWithCenter:self.view.center];
30     // 设置代理
31     self.iflyRecognizerView.delegate = self;
32     
33     //设置语音识别结果应用为普通文本领域
34     [self.iflyRecognizerView setParameter: @"iat" forKey:[IFlySpeechConstant IFLY_DOMAIN]];
35     //设置前端点检测时间为6000ms
36     [self.iflyRecognizerView setParameter: @"6000" forKey:[IFlySpeechConstant VAD_BOS]];
37     //设置后端点检测时间为700ms
38     [self.iflyRecognizerView setParameter: @"700" forKey:[IFlySpeechConstant VAD_EOS]];
39     //设置采样率为8000
40     [self.iflyRecognizerView setParameter: @"8000" forKey:[IFlySpeechConstant SAMPLE_RATE]];
41     //设置为返回结果中包含标点符号
42     [self.iflyRecognizerView setParameter: @"1" forKey:[IFlySpeechConstant ASR_PTT]];
43     //设置语音识别完成后数据的返回数据结构类型xml
44     [self.iflyRecognizerView setParameter: @"plain" forKey:[IFlySpeechConstant RESULT_TYPE]];
45     //设置在Documents文件夹下缓存的文件名为temp.asr
46     [self.iflyRecognizerView setParameter: @"temp.asr" forKey:[IFlySpeechConstant ASR_AUDIO_PATH]];
47     //设置自定义的参数
48     [self.iflyRecognizerView setParameter: @"custom" forKey:[IFlySpeechConstant PARAMS]];
49     
50 
51 }
52 
53 #pragma mark - 语音识别文字
54 - (IBAction)recognizeAction:(UIButton *)sender {
55 
56     // 开始识别语音
57     [self.iflyRecognizerView start];
58     
59 }
60 
61 
62 #pragma mark - 代理方法
63 /*!
64  *  回调返回识别结果
65  *
66  *  @param resultArray 识别结果，NSArray的第一个元素为NSDictionary，NSDictionary的key为识别结果，sc为识别结果的置信度
67  *  @param isLast      -[out] 是否最后一个结果
68  */
69 // 成功
70 - (void)onResult:(NSArray *)resultArray isLast:(BOOL) isLast {
71     self.resultStr = [[NSMutableString alloc] init];
72     NSDictionary *dic = [resultArray objectAtIndex:0];
73     
74     for (NSString *key in dic)
75     {
76         [self.resultStr appendFormat:@"%@",key];
77     }
78     NSLog(@"%@---------",_resultStr);
79     
80     self.wordTextView.text = [NSString stringWithFormat:@"%@%@",self.wordTextView.text,self.resultStr];
81 }
82 
83 /*!
84  *  识别结束回调
85  *
86  *  @param error 识别结束错误码
87  */
88 // 失败
89 - (void)onError: (IFlySpeechError *) error {
90     NSLog(@"%@", error);
91 }
92 
93 @end