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
网友评论