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讯飞语音的使用(iOS)

讯飞语音的使用(iOS)

作者: 街角仰望 | 来源:发表于2019-03-06 17:45 被阅读10次

一、介绍

讯飞语音做的相当不错,容错率达到90%多,如果需要做语音方面的功能,它绝对是一个不错的选择。讯飞语音的功能很多:语音听写、语音识别、语音合成等,但我们最常用的还是语音听写。讯飞语音中包含界面的语音听写和不带界面的语音听写,下面我来演示一下。

二、准备工作

(1) 去讯飞语音开发平台注册账号并登陆,然后在控制台创建应用,获取对应的app id,这个以后使用它注册激活讯飞语音。


(2) 下载讯飞语音SDK,将其拖入到项目中,然后添加需要所有的依赖库,另外还有新添加库Contacts.framework,编译运行即可。


(3) 引入头文件,以及遵从代理,激活讯飞语音,并实现功能。

三、BitCode 设置

在 Xcode 7 默认开启了 Bitcode,Bitcode 需要工程依赖的类库同时支持。而语记 SDK 暂时还不支持Bitcode,所以可以先临时关闭。后续支持 Bitcode 请关注讯飞开放平台版本更新,QQ 群中也会􏰁醒。在 Targets - Build Settings 中搜索 Bitcode 即可,找 到相应选项,设置为 NO。

四、使用

第一种不带界面的语音听写

DDHomeSearchViewController.m

#import <UIKit/UIKit.h>
#import "iflyMSC/iflyMSC.h"
#import "iflyMSC/IFlySpeechRecognizerDelegate.h"
#import "iflyMSC/IFlySpeechRecognizer.h"

@interface DDHomeSearchViewController : UIViewController<IFlySpeechRecognizerDelegate>
@property (nonatomic, strong) IFlySpeechRecognizer *iFlySpeechRecognizer;   //不带界面的识别对象
@end

//初始化Appid
-(void)initAppId
{
    NSString *initString = [[NSString alloc] initWithFormat:@"appid=%@",@"xxxxxxx"];
    [IFlySpeechUtility createUtility:initString];
}

//初始化识别器
-(void)initRecognizer
{
    //单例模式,无UI的实例
    if (_iFlySpeechRecognizer == nil) {
    _iFlySpeechRecognizer = [IFlySpeechRecognizer sharedInstance];
    }

    // 设置参数
    if (_iFlySpeechRecognizer != nil) {
    //扩展参数
    [_iFlySpeechRecognizer setParameter:@"" forKey:[IFlySpeechConstant PARAMS]];
    //设置听写模式
    [_iFlySpeechRecognizer setParameter:@"iat" forKey:[IFlySpeechConstant IFLY_DOMAIN]];
    //设置最长录音时间
    [_iFlySpeechRecognizer setParameter:@"30000" forKey:[IFlySpeechConstant SPEECH_TIMEOUT]];
    //设置后端点
    [_iFlySpeechRecognizer setParameter:@"1800" forKey:[IFlySpeechConstant VAD_EOS]];
    //设置前端点
    [_iFlySpeechRecognizer setParameter:@"1800" forKey:[IFlySpeechConstant VAD_BOS]];
    //网络等待时间
    [_iFlySpeechRecognizer setParameter:@"20000" forKey:[IFlySpeechConstant NET_TIMEOUT]];
    //设置采样率,推荐使用16K
    [_iFlySpeechRecognizer setParameter:@"16000" forKey:[IFlySpeechConstant SAMPLE_RATE]];
    //设置语言
    [_iFlySpeechRecognizer setParameter:@"zh_cn" forKey:[IFlySpeechConstant LANGUAGE]];
    //设置方言
    [_iFlySpeechRecognizer setParameter:@"mandarin" forKey:[IFlySpeechConstant ACCENT]];
    //设置是否返回标点符号
    [_iFlySpeechRecognizer setParameter:@"1" forKey:[IFlySpeechConstant ASR_PTT]];
    //设置数据返回格式
    [_iFlySpeechRecognizer setParameter:@"plain" forKey:[IFlySpeechConstant RESULT_TYPE]];

    }

    // 设置代理
    _iFlySpeechRecognizer.delegate = self;
}


//实现代理方法
// 出现错误
- (void) onError:(IFlySpeechError *) error
{
    NSLog(@"出现错误 :%@",error);
}

// 识别结果 
- (void) onResults:(NSArray *) results isLast:(BOOL)isLast
{
    NSMutableString *result = [[NSMutableString alloc] init];
    NSDictionary *dic = [results objectAtIndex:0];
    for (NSString *key in dic) {
        [result appendFormat:@"\n\n------ %@ (置信度:%@) ------ \n\n",key,[dic objectForKey:key]];
    }

    // 忽略结束。号
    if ([result hasPrefix:@"\n\n------ 。"]) {
        return;
    }

    NSLog(@"%@",result);
}


//点击开始和结束
- (IBAction)understand:(id)sender
{   
    // 开始识别
    [_iFlySpeechRecognizer startListening];
}

- (IBAction)finish:(id)sender
{   
    // 停止识别
    [_iFlySpeechRecognizer stopListening];
}


//初始化
- (void)viewDidLoad {
    [super viewDidLoad];
    [self initAppId];
    [self initRecognizer];
}
第二种带界面的语音听写:

DDHomeSearchViewController.m

//
//  DDHomeSearchViewController.m//
//  Created by 夏远全 on 16/12/1.
//  Copyright © 2016年 . All rights reserved.
//

#import "DDHomeSearchController.h"

@interface DDHomeSearchViewController ()<UISearchBarDelegate,IFlyRecognizerViewDelegate>
{
    IFlyRecognizerView      *_iflyRecognizerView;
}
@property (nonatomic, strong) UISearchBar * searchBar;
@end

@implementation DDHomeSearchController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor clearColor];
    
    //初始化导航栏
    [self _createNavigationBar];
    
    //初始化语音识别
    [self initIFly];
    [self initAppid];
}


//创建导航栏
- (void)_createNavigationBar {
    
    //取消
    self.navigationItem.leftBarButtonItems = [UIBarButtonItem itemWithFrame:CGRectMake(0, 0, 60, 40) ImageName:@"back" Title:@"取消" TitleColor:[UIColor whiteColor] size:14 target:self action:@selector(back)];
    _searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, 100, 30)];
    
    //搜索栏
    _searchBar.placeholder = @"请输入要搜索的商家、品类";
    _searchBar.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin;
    _searchBar.autoresizesSubviews = YES;
    _searchBar.delegate = self;
    self.navigationItem.titleView = _searchBar;
    
    //搜索
    self.navigationItem.rightBarButtonItems = [UIBarButtonItem itemWithFrame:CGRectMake(0, 0, 60, 40) Title:@"语音" TitleColor:[UIColor whiteColor] size:14 target:self action:@selector(voiceStart)];
}

//返回
-(void)back{
    [self.presentingViewController dismissViewControllerAnimated:NO completion:nil];
}


//初始化Appid
-(void)initAppid{
    
    //注册讯飞语音
    NSString *initString = [[NSString alloc] initWithFormat:@"appid=%@",@"xxxxxxx"];
    [IFlySpeechUtility createUtility:initString];
}


//语音识别初始化
-(void)initIFly{
    
    //单例模式,无UI的实例
    if (_iflyRecognizerView == nil) {
        _iflyRecognizerView = [[IFlyRecognizerView alloc] initWithCenter:self.view.center];
        _iflyRecognizerView.delegate = self;
    }
    
    // 设置参数
    if (_iflyRecognizerView != nil) {
        //扩展参数
        [_iflyRecognizerView setParameter:@"" forKey:[IFlySpeechConstant PARAMS]];
        //设置听写模式
        [_iflyRecognizerView setParameter:@"iat" forKey:[IFlySpeechConstant IFLY_DOMAIN]];
        //设置最长录音时间
        [_iflyRecognizerView setParameter:@"30000" forKey:[IFlySpeechConstant SPEECH_TIMEOUT]];
        //设置后端点
        [_iflyRecognizerView setParameter:@"1800" forKey:[IFlySpeechConstant VAD_EOS]];
        //设置前端点
        [_iflyRecognizerView setParameter:@"1800" forKey:[IFlySpeechConstant VAD_BOS]];
        //网络等待时间
        [_iflyRecognizerView setParameter:@"20000" forKey:[IFlySpeechConstant NET_TIMEOUT]];
        //设置采样率,推荐使用16K
        [_iflyRecognizerView setParameter:@"16000" forKey:[IFlySpeechConstant SAMPLE_RATE]];
        //设置语言
        [_iflyRecognizerView setParameter:@"zh_cn" forKey:[IFlySpeechConstant LANGUAGE]];
        //设置方言
        [_iflyRecognizerView setParameter:@"mandarin" forKey:[IFlySpeechConstant ACCENT]];
        //设置是否返回标点符号
        [_iflyRecognizerView setParameter:@"1" forKey:[IFlySpeechConstant ASR_PTT]];
        //设置数据返回格式
        [_iflyRecognizerView setParameter:@"plain" forKey:[IFlySpeechConstant RESULT_TYPE]];
    }
}

//语音搜索启动
-(void)voiceStart{
    //按钮变换
    self.navigationItem.rightBarButtonItems = [UIBarButtonItem itemWithFrame:CGRectMake(0, 0, 60, 40) Title:@"结束" TitleColor:[UIColor whiteColor] size:14 target:self action:@selector(voiceEnd)];
    
    //启动识别服务
    [_iflyRecognizerView start];
}

//结束录音
-(void)voiceEnd{
    
    //按钮变换
    self.navigationItem.rightBarButtonItems = [UIBarButtonItem itemWithFrame:CGRectMake(0, 0, 60, 40) Title:@"语音" TitleColor:[UIColor whiteColor] size:14 target:self action:@selector(voiceStart)];
    
    //结束识别服务
    [_iflyRecognizerView cancel];
}

/*识别结果返回代理
 @param resultArray 识别结果
 @ param isLast 表示是否最后一次结果
 */
- (void)onResult: (NSArray *)resultArray isLast:(BOOL) isLast
{
    [resultArray enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        DDLog(@"%@",obj);
    }];
}
/*识别会话错误返回代理
 @ param  error 错误码
 */
- (void)onError: (IFlySpeechError *) error
{
    DDLog(@"语音识别出错:%@",error);
}

#pragma mark - UISearchBarDelegate
-(void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar{
    [searchBar becomeFirstResponder];
}
-(void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText{
    DDLog(@"%@",searchText);
}
-(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar{
    [searchBar resignFirstResponder];
    [searchBar setText:nil];
}
@end
效果截图(说一句“附近的商店”)

参考:
https://www.cnblogs.com/XYQ-208910/p/6124418.html

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