一篇简单的的讯飞语音接入例子。

首先，导入讯飞语音库（友情提示在讯飞语音官方平台申请过的识别次数无上限，没有申请过的app每日500次），在delegate.m注册讯飞语音appKey，然后接入如下：

.h文件.

#import <UIKit/UIKit.h>
#import "IATConfig.h"
#import "ISRDataHelper.h"
#import <iflyMSC/iflyMSC.h>

@class IFlySpeechRecognizer;
@interface ListenView : UIView<IFlySpeechRecognizerDelegate,UIGestureRecognizerDelegate>
//显示的文本框
@property(strong,nonatomic)UILabel *WordsLB;
//麦克风图标
@property(strong,nonatomic)UIButton*IconBtn;
//提示：按住说话
@property(strong,nonatomic)UILabel*TipLB;
//确定
@property(strong,nonatomic)UIButton *SureBtn;
//删除
@property(strong,nonatomic)UIButton *ClearBtn;
//讯飞语音要求接入的lb，好扯淡的审核
@property(strong,nonatomic)UILabel *XFTipLB;
//显示，前提是已经有这个实例了，就是已经alloc，init了
-(void)ShowListenView;
//隐藏，前提是已经有这个实例了，就是已经alloc，init了
-(void)HideListenView;
//横竖屏切换需调用
//show跟hideblock是出现和隐藏的时候调用，一般是，showblock里边，消失掉直播间声音，hideblock重新播放声音
@property(nonatomic,copy)void (^ShowBlock)();
@property(nonatomic,copy)void (^HideBlock)();
-(void)ChangeFrameToWhatLand1OrVertical2:(NSInteger)Land1OrVertical2;
//不带界面的识别对象
@property (nonatomic, strong) IFlySpeechRecognizer *iFlySpeechRecognizer;
//录音路径，暂时没有用到
@property (nonatomic, strong) NSString *pcmFilePath;//音频文件路径
//识别结果，暂时没有用到，直接添加在textview
@property (nonatomic, strong) NSString * result;
//是否继续录音
@property(assign,nonatomic)BOOL StopListen;
//外部vc消失时候调用，防止特殊情况的没有释放speechrecognizer，造成内存泄漏
-(void)ShouldDelete;
//确定按钮按下，调用的方法，参数是textview的text，在这里需要将text放到直播间的输入框，活着直接发送等
@property(nonatomic,copy)void (^SureBlock)(NSString*Words);
//点击文字的，调用方法，参数是textview的text,在这里需要将words写到输入框，并且让用户在直播间编辑
@property(nonatomic,copy)void (^ClickWordsBlock)(NSString*Words);
//点击语音的block
@property(nonatomic,copy)void (^TouchUpVoiceImgBlock)();
//取消点击语音图片的block
@property(nonatomic,copy)void (^TouchCancelVoiceImgBlock)();
-(void)ShowWordSLB;
@property(nonatomic,copy)void (^NoWordRecognizeBlock)();
//是否是喇叭发言
@property(assign,nonatomic)BOOL IsAnnounce;
//发言中的提示
@property(strong,nonatomic)UIView* ListenTipView;

@end

.m文件代码：

#import "ListenView.h"

@implementation ListenView

/*
 // Only override drawRect: if you perform custom drawing.
 // An empty implementation adversely affects performance during animation.
 - (void)drawRect:(CGRect)rect {
 // Drawing code
 }
 */
- (instancetype)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        self.backgroundColor = [UIColor whiteColor];
        UITapGestureRecognizer *tapWordsLB = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(TapWordsLB)];
        [self addGestureRecognizer:tapWordsLB];
        //frame宽度必须大于300,确定的是图片半径100
        //高度是165-50
        self.WordsLB = [[UILabel alloc] initWithFrame:CGRectMake(13, 13, 0, 0)];
        self.WordsLB.numberOfLines = 0;
        self.WordsLB.textAlignment = NSTextAlignmentLeft;
        [self.WordsLB setFont:[UIFont systemFontOfSize:15]];
        self.WordsLB.textColor = [UIColor blackColor];
        [self addSubview:self.WordsLB];
        
        
        self.IconBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        self.IconBtn.adjustsImageWhenHighlighted = NO;
        self.IconBtn.frame = CGRectMake(frame.size.width/2-50, 165-50, 100, 100);
        self.IconBtn.userInteractionEnabled = YES;
        [self.IconBtn setImage:[UIImage imageNamed:@"YBkxNoListenImg"] forState:UIControlStateNormal];
        [self.IconBtn addTarget:self action:@selector(touchInIcon:) forControlEvents:UIControlEventTouchDown];
        [self.IconBtn addTarget:self action:@selector(touchOutOrCancelIcon:) forControlEvents:UIControlEventTouchUpInside];
        [self.IconBtn addTarget:self action:@selector(touchOutOrCancelIcon:) forControlEvents:UIControlEventTouchCancel];
        [self.IconBtn addTarget:self action:@selector(touchOutOrCancelIcon:) forControlEvents:UIControlEventTouchUpOutside];
        [self addSubview:self.IconBtn];
        
        self.TipLB = [[UILabel alloc] initWithFrame:CGRectMake(0, self.IconBtn.frame.origin.y-35, frame.size.width, 20)];
        self.TipLB.text = @"按住说话";
        self.TipLB.textAlignment = NSTextAlignmentCenter;
        self.TipLB.font = [UIFont systemFontOfSize:14];
        self.TipLB.textColor = [UIColor blackColor];
        self.TipLB.textAlignment = NSTextAlignmentCenter;
        [self addSubview:self.TipLB];
        
        
        //默认隐藏
        //语音开始是要显示的视图
        //140宽高
        UIView* TipBgView = [[UIView alloc] initWithFrame:CGRectMake(kYBScreenWidth/2-70, (kYBScreenHeight/2-70)-frame.origin.y, 140, 140)];
        TipBgView.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.7];
        TipBgView.layer.cornerRadius = 5;
        TipBgView.layer.masksToBounds = YES;
        TipBgView.userInteractionEnabled = YES;
        [self addSubview:TipBgView];
        
        self.ListenTipView = TipBgView;
        
        UIImageView* TipImageView = [[UIImageView alloc] initWithFrame:CGRectMake((TipBgView.frame.size.width-40)/2, (TipBgView.frame.size.width-50-30)/3, 40, 50)];
        TipImageView.image = [UIImage imageNamed:@"KXInVoice2"];
        [TipBgView addSubview:TipImageView];
        
        UILabel* TipLB1 = [[UILabel alloc] initWithFrame:CGRectMake(0, TipImageView.frame.size.height+TipImageView.frame.origin.y+(TipBgView.frame.size.width-50-30)/3, TipBgView.frame.size.width, 15)];
        TipLB1.text = @"语音识别中";
        TipLB1.font = [UIFont systemFontOfSize:12];
        TipLB1.textColor = [UIColor whiteColor];
        TipLB1.textAlignment =NSTextAlignmentCenter;
        [TipBgView addSubview:TipLB1];
        
        UILabel* TipLB2 = [[UILabel alloc] initWithFrame:CGRectMake(0, TipLB1.frame.size.height+TipLB1.frame.origin.y, TipLB1.frame.size.width, 15)];
        TipLB2.text = @"请保持周边安静";
        TipLB2.font = [UIFont systemFontOfSize:12];
        TipLB2.textColor = [UIColor whiteColor];
        TipLB2.textAlignment =NSTextAlignmentCenter;
        [TipBgView addSubview:TipLB2];
        
        //默认，没有点击语音，隐藏
        [TipBgView setHidden:YES];
        
        
        //frame-80   然后／2 100是按钮的宽度，80是语音图片的宽度
        //最窄300，可以放下
        self.ClearBtn = [[UIButton alloc] initWithFrame:CGRectMake(((frame.size.width-self.IconBtn.frame.size.width)/2-100)/2, self.IconBtn.frame.origin.y+20, 100, 20)];
        [self.ClearBtn setTitle:@"清空" forState:UIControlStateNormal];
        [self.ClearBtn setTitleColor:UIColorFromRGB(0x999999) forState:UIControlStateNormal];
        [self.ClearBtn.titleLabel setFont:[UIFont systemFontOfSize:15]];
        [self addSubview:self.ClearBtn];
        [self.ClearBtn addTarget:self action:@selector(ClickBtnS:) forControlEvents:UIControlEventTouchUpInside];
        
        self.SureBtn = [[UIButton alloc] initWithFrame:CGRectMake(frame.size.width- ((frame.size.width-self.IconBtn.frame.size.width)/2-100)/2-100,self.IconBtn.frame.origin.y+20, 100, 20)];
        [self.SureBtn setTitle:@"发送" forState:UIControlStateNormal];
        [self.SureBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
        [self.SureBtn.titleLabel setFont:[UIFont systemFontOfSize:15]];
        [self addSubview:self.SureBtn];
        [self.SureBtn addTarget:self action:@selector(ClickBtnS:) forControlEvents:UIControlEventTouchUpInside];
        
        //科大讯飞的审核需要的，醉了，要明确显示技术来自讯飞
        UILabel *XunFeiLB = [[UILabel alloc] initWithFrame:CGRectMake(0, frame.size.height-20, frame.size.width, 15)];
        NSString *normalStr = [NSString stringWithFormat:@"语音核心技术由科大讯飞提供"];
        XunFeiLB.textAlignment = NSTextAlignmentCenter;
        NSMutableAttributedString *XFstr = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"%@",normalStr]];
        [XFstr addAttribute:NSForegroundColorAttributeName value:UIColorFromRGB(0x333333) range:NSMakeRange(7, 4)];
        [XFstr addAttribute:NSForegroundColorAttributeName value:UIColorFromRGB(0x999999) range:NSMakeRange(0, 7)];
        [XFstr addAttribute:NSForegroundColorAttributeName value:UIColorFromRGB(0x999999) range:NSMakeRange(11, 2)];
        
        [XFstr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:13] range:NSMakeRange(7, 4)];
        
        [XFstr addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInteger:NSUnderlineStyleSingle] range:NSMakeRange(7, 4)];
        
        [XFstr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:12] range:NSMakeRange(0, 7)];
        [XFstr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:12] range:NSMakeRange(11, 2)];
        self.XFTipLB = XunFeiLB;
        self.XFTipLB.attributedText = XFstr;
        [self addSubview:XunFeiLB];
        
        //语音识别调用相关配置
        //单例模式，无UI的实例
        if (_iFlySpeechRecognizer == nil) {
            _iFlySpeechRecognizer = [IFlySpeechRecognizer sharedInstance];
            
            [_iFlySpeechRecognizer setParameter:@"" forKey:[IFlySpeechConstant PARAMS]];
            
            //设置听写模式
            [_iFlySpeechRecognizer setParameter:@"iat" forKey:[IFlySpeechConstant IFLY_DOMAIN]];
        }
        _iFlySpeechRecognizer.delegate = self;
        
        if (_iFlySpeechRecognizer != nil) {
            IATConfig *instance = [IATConfig sharedInstance];
            
            //设置最长录音时间
            [_iFlySpeechRecognizer setParameter:instance.speechTimeout forKey:[IFlySpeechConstant SPEECH_TIMEOUT]];
            //设置后端点
            [_iFlySpeechRecognizer setParameter:instance.vadEos forKey:[IFlySpeechConstant VAD_EOS]];
            //设置前端点
            [_iFlySpeechRecognizer setParameter:instance.vadBos 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:instance.sampleRate forKey:[IFlySpeechConstant SAMPLE_RATE]];
            
            //设置语言
            [_iFlySpeechRecognizer setParameter:instance.language forKey:[IFlySpeechConstant LANGUAGE]];
            //设置方言
            [_iFlySpeechRecognizer setParameter:instance.accent forKey:[IFlySpeechConstant ACCENT]];
            
            //设置是否返回标点符号
            [_iFlySpeechRecognizer setParameter:instance.dot forKey:[IFlySpeechConstant ASR_PTT]];
            
        }
        //默认停止识别
        self.StopListen = YES;
        //默认不显示，删除，确认按钮
        self.ClearBtn.hidden = YES;
        self.SureBtn.hidden = YES;
        
        //
        self.userInteractionEnabled = YES;
        
        //防止“null”+字符串,初始化字符串为“”
        self.WordsLB.text = @"";
        
        self.IsAnnounce = NO;
        
    }
    return self;
}
-(void)ChangeFrameToWhatLand1OrVertical2:(NSInteger)Land1OrVertical2{
    if (Land1OrVertical2==1) {
        self.frame = CGRectMake(0, kYBScreenHeight-self.frame.size.height, kYBScreenWidth, self.frame.size.height);
        self.WordsLB.frame = CGRectMake(13, 13, self.WordsLB.frame.size.width, self.WordsLB.frame.size.height);
        self.IconBtn.frame = CGRectMake(self.frame.size.width/2-50, 165-50, 100, 100);
        self.TipLB.frame = CGRectMake(0, self.IconBtn.frame.origin.y-35, self.frame.size.width, 20);
        self.ClearBtn.frame = CGRectMake(((self.frame.size.width-self.IconBtn.frame.size.width)/2-100)/2, self.IconBtn.frame.origin.y+20, 100, 20);
        self.SureBtn.frame = CGRectMake(self.frame.size.width- ((self.frame.size.width-self.IconBtn.frame.size.width)/2-100)/2-100,self.IconBtn.frame.origin.y+20, 100, 20);
        self.XFTipLB.frame = CGRectMake(0, self.frame.size.height-20, self.frame.size.width, 15);
        self.ListenTipView.frame = CGRectMake(kYBScreenWidth/2-70, (kYBScreenHeight/2-70)-self.frame.origin.y, 140, 140);
    }else if(Land1OrVertical2==2){
        self.frame = CGRectMake(0, kYBScreenHeight-self.frame.size.height, kYBScreenWidth, self.frame.size.height);
        self.WordsLB.frame = CGRectMake(13, 13, self.WordsLB.frame.size.width, self.WordsLB.frame.size.height);
        self.IconBtn.frame = CGRectMake(self.frame.size.width/2-50, 165-50, 100, 100);
        self.TipLB.frame = CGRectMake(0, self.IconBtn.frame.origin.y-35, self.frame.size.width, 20);
        self.ClearBtn.frame = CGRectMake(((self.frame.size.width-self.IconBtn.frame.size.width)/2-100)/2, self.IconBtn.frame.origin.y+20, 100, 20);
        self.SureBtn.frame = CGRectMake(self.frame.size.width- ((self.frame.size.width-self.IconBtn.frame.size.width)/2-100)/2-100,self.IconBtn.frame.origin.y+20, 100, 20);
        self.XFTipLB.frame = CGRectMake(0, self.frame.size.height-20, self.frame.size.width, 15);
        self.ListenTipView.frame = CGRectMake(kYBScreenWidth/2-70, (kYBScreenHeight/2-70)-self.frame.origin.y, 140, 140);
    }
}

-(void)ClickBtnS:(UIButton*)btn{
    WeakObj(self)
    if (btn == self.ClearBtn) {
        self.WordsLB.text = @"";
        self.ClearBtn.hidden = YES;
        self.SureBtn.hidden = YES;
        
        
    }else if(btn == self.SureBtn){
        if (self.SureBlock) {
            self.SureBlock(selfWeak.WordsLB.text);
        }
    }
}
-(void)TapWordsLB{
    WeakObj(self)
    if (self.ClickWordsBlock) {
        self.ClickWordsBlock(selfWeak.WordsLB.text);
    }
}
-(void)touchInIcon:(UIButton*)btn{
    //点下
    //开始语音中
    self.StopListen = NO;
    //self.IconBtn.image = [UIImage imageNamed:@"YBkxListeningImg"];
    [self.IconBtn setImage:[UIImage imageNamed:@"YBkxListeningImg"] forState:UIControlStateNormal];
    if ([self.iFlySpeechRecognizer isListening]) {
        [self.iFlySpeechRecognizer cancel];
    }
    [self.iFlySpeechRecognizer startListening];
    //        self.TipLB.text = @"识别中...";
    if (self.TouchUpVoiceImgBlock) {
        self.TouchUpVoiceImgBlock();
    }
    //隐藏可操作控件
    //self.WordsLB.hidden = YES;
    self.TipLB.hidden = YES;
    self.ClearBtn.hidden = YES;
    self.SureBtn.hidden = YES;
}
-(void)touchOutOrCancelIcon:(UIButton*)btn{
    //点下取消
    //滑倒区域外，等其他特殊情况，中断监听
    //结束语音后
    self.StopListen = YES;
    //self.IconBtn.image = [UIImage imageNamed:@"YBkxNoListenImg"];
    [self.IconBtn setImage:[UIImage imageNamed:@"YBkxNoListenImg"] forState:UIControlStateNormal];
//    if ([self.iFlySpeechRecognizer isListening]) {
//        [self.iFlySpeechRecognizer cancel];
//
//    }
    //停止本次录音并识别
    //[self.iFlySpeechRecognizer stopListening];
    self.TipLB.text = @"按住说话";
    if (self.TouchCancelVoiceImgBlock) {
        self.TouchCancelVoiceImgBlock();
    }
    //显示可操作控件
    //不要等识别有结果在显示，直接取消按下的时候就判断是否有文字
    self.TipLB.hidden = NO;
    if (self.WordsLB.text.length>0) {
        self.WordsLB.hidden = NO;
        self.ClearBtn.hidden = NO;
        self.SureBtn.hidden = NO;
    }
}
-(void)ShowListenView{
    [UIView setAnimationsEnabled:YES];
    self.alpha= 1;
    [UIView animateWithDuration:.3 animations:^{
        self.frame = CGRectMake(0, kYBScreenHeight-self.frame.size.height, self.frame.size.width, self.frame.size.height);
    } completion:nil];
    
    if (self.ShowBlock) {
        self.ShowBlock();
    }
    [self ShowWordSLB];
    
}
-(void)HideListenView{
    [UIView setAnimationsEnabled:YES];
    self.alpha= 1;
    [UIView animateWithDuration:.3 animations:^{
        self.frame = CGRectMake(0, kYBScreenHeight, self.frame.size.width, self.frame.size.height);
    } completion:^(BOOL finished) {
        if (finished) {
            self.alpha = 0;
        }
    }];
    //隐藏默认就是，关闭语音监听
    self.StopListen = YES;
    //self.IconBtn.image = [UIImage imageNamed:@"YBkxNoListenImg"];
    [self.IconBtn setImage:[UIImage imageNamed:@"YBkxNoListenImg"] forState:UIControlStateNormal];
    if ([self.iFlySpeechRecognizer isListening]) {
        [self.iFlySpeechRecognizer cancel];
    }
    self.WordsLB.text = @"";
    self.SureBtn.hidden = YES;
    self.ClearBtn.hidden = YES;
    if (self.HideBlock) {
        self.HideBlock();
    }
    
}
-(void)onResults:(NSArray *)results isLast:(BOOL)isLast{
    //接收到一段录音并且转换成文字
    //shu
    NSMutableString *resultString = [[NSMutableString alloc] init];
    NSDictionary *dic = results[0];
    for (NSString *key in dic) {
        [resultString appendFormat:@"%@",key];
    }
    _result =[NSString stringWithFormat:@"%@%@", self.WordsLB.text,resultString];
    NSString * resultFromJson =  [ISRDataHelper stringFromJson:resultString];
    
    NSString *subStr = [NSString stringWithFormat:@"%@%@", self.WordsLB.text,resultFromJson];
    if (subStr.length>20) {
        //超过20字，应该提示下的
        self.WordsLB.text = [subStr substringWithRange:NSMakeRange(0, 20)];
    }else{
        //没超过，直接显示
        self.WordsLB.text = subStr;
    }
    
    //根据总的字体长度，来决定是否隐藏两个按钮
    if (self.WordsLB.text.length>0) {
        //根据当前文本信息，重新绘制label的frame.
        CGSize lblSize = [self.WordsLB.text boundingRectWithSize:CGSizeMake(self.frame.size.width-13*2, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:15]} context:nil].size;
        self.WordsLB.frame = CGRectMake(self.WordsLB.frame.origin.x, self.WordsLB.frame.origin.y, lblSize.width, lblSize.height);
    }
    
    
    if (self.StopListen == YES) {
        [self.iFlySpeechRecognizer cancel];
        if (self.NoWordRecognizeBlock) {
            self.NoWordRecognizeBlock();
        }
        //显示可操作控件
        self.TipLB.hidden = NO;
        if (self.WordsLB.text.length>0) {
            self.WordsLB.hidden = NO;
            self.ClearBtn.hidden = NO;
            self.SureBtn.hidden = NO;
        }
    }
    
    if (isLast){
        NSLog(@"听写结果(json)：%@测试",  self.result);
    }
    NSLog(@"_result=%@",_result);
    NSLog(@"resultFromJson=%@",resultFromJson);
    NSLog(@"isLast=%d,_textView.text=%@",isLast,self.WordsLB.text);
}
-(void)ShowWordSLB{
    self.TipLB.hidden = NO;
    if (self.WordsLB.text.length>0) {
        self.SureBtn.hidden = NO;
        self.ClearBtn.hidden = NO;
        self.WordsLB.hidden = NO;
        
        //根据当前文本信息，重新绘制label的frame.
        CGSize lblSize = [self.WordsLB.text boundingRectWithSize:CGSizeMake(self.frame.size.width-13*2, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:15]} context:nil].size;
        self.WordsLB.frame = CGRectMake(self.WordsLB.frame.origin.x, self.WordsLB.frame.origin.y, lblSize.width, lblSize.height);
    }
}
-(void)onEndOfSpeech{
    
    if (self.StopListen) {
        //取消的情况下，识别完毕，就停止
        [self.iFlySpeechRecognizer cancel];
        if (self.NoWordRecognizeBlock) {
            self.NoWordRecognizeBlock();
        }
        //显示可操作控件
        self.TipLB.hidden = NO;
        if (self.WordsLB.text.length>0) {
            self.WordsLB.hidden = NO;
            self.ClearBtn.hidden = NO;
            self.SureBtn.hidden = NO;
        }
    }else{
        //按着的情况下，重复调用
        [self.iFlySpeechRecognizer startListening];
    }
    
}
-(void)onError:(IFlySpeechError *)errorCode{
    //可提示用户识别不到语音
    //暂不操作
    //现在onerror的逻辑和OnEndOfSpeech逻辑一样
    if (self.StopListen) {
        //取消的情况下，识别完毕，就停止
        [self.iFlySpeechRecognizer cancel];
        if (self.NoWordRecognizeBlock) {
            self.NoWordRecognizeBlock();
        }
        //显示可操作控件
        self.TipLB.hidden = NO;
        if (self.WordsLB.text.length>0) {
            self.WordsLB.hidden = NO;
            self.ClearBtn.hidden = NO;
            self.SureBtn.hidden = NO;
        }
    }else{
        //按着的情况下，重复调用
        [self.iFlySpeechRecognizer startListening];
    }
}
//父级视图dealloc时调用
-(void)ShouldDelete{
    if (self.iFlySpeechRecognizer) {
        self.StopListen = YES;
        
        if ([self.iFlySpeechRecognizer isListening]) {
            [self.iFlySpeechRecognizer cancel];
        }
    }
}

- (void)dealloc {
    NSLog(@"function %s-%d",__FUNCTION__,__LINE__);
}

@end

在需要调用的，地方initwithframe。另外提醒下，我一直以为可以直接说完一段语音，然后再开始识别语音输出出结果；但实际上讯飞语音应该没有这么做，它是边接收语音，边识别数出结果的形式(有点略坑).

代码有些乱，不过大体上需求都是这个模子，改下就好

好了，还有不懂的小伙伴，请加QQ群一起讨论：565191947