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admin

发表于 2018-05-19 17:41:49

摘要:微信语音红包小程序开发如何提高精准度 红包小程序语音识别精准度 微信小程序红包开发语音红包 (微信小程序开发 - 微信 小程序外包开发-微信小程序 开发教程-微信小程序开发者社区,尽在 www.mntuku.cn)

  公司最近开发的一个微信语音红包,就是前些时间比较火的包你说红包小程序。如何提高识别的精准度呢。

 在说精准度之前,先大概说下整个语音识别的开发流程。前面我有文章已经说到过了。具体我就不谈了。一笔带过。

  先是通过小程序前端调动语音录制功能拿到客户说的语音,比如mp3格式,然后通过百度的语音识别算法,转为文字。具体看百度语音识别的接口。地址http://yuyin.baidu.com/docs/asr/188

   返回的格式如下:

  1. // 成功返回
  2. {
  3. "err_no": 0,
  4. "err_msg": "success.",
  5. "corpus_no": "15984125203285346378",
  6. "sn": "481D633F-73BA-726F-49EF-8659ACCC2F3D",
  7. "result": ["北京天气"]
  8. }

  json格式的,取到他的文字来,然后和你的语音红包文字进行匹配,匹配对了,就可以抢到这个语音红包了。

  好了,问题来了,如果只用中文进行匹配,就会出现,比如我们说话的时候,我们打一个字,比如lianhe 会出现很多个词组,比如联合 连和 联和  莲河  那么具体是哪个呢?

   我们之前开发的第一个版本,我们就遇到这个坑了,当时一个客户是要连和,但是呢,百度识别一直给你识别的是联合。这就让人抓狂了。客户一直抢不到红包。但是我说是说对了呀。那怎么办呢?产品经理将问题提过来了。技术员,看看你怎么解决了?

   嗯,临危受命,我们想想技术怎么来解决吧。于是想到的方法就是两种:

1、将文字转为拼音,匹配这两个的拼音是否一致。

2、拼音可能会遇到南方人和北方人的区别,比如是否有后鼻音的问题。  beijing  和beijin   没有后鼻音的。那么就将拼音作为一个单元,比如一个词组,假设有10个字母,我们设置概率,只要80%的准确率就算答对了。

 

  使用上面这两个方法成功将这个问题解决了。所以重点就是文字怎么转为拼音了。大家可以去百度搜有相关的类库函数,直接调用就可以了。

  我这里也分享一个我自己在用的。大家需要可以直接复制使用。还不错哦。也是我百度搜的,别人写的一个类库。

 

  1 /**
  2  *+------------------------------------------------------
  3  *    PHP 汉字转拼音
  4  *+------------------------------------------------------
  5  *    使用方法:
  6  *      $py = new PinYin();
  7  *      echo $py->getAllPY("输出汉字所有拼音"); //shuchuhanzisuoyoupinyin
  8  *      echo $py->getFirstPY("输出汉字首拼音"); //schzspy
  9  *+------------------------------------------------------
 10  */
 11 class PinYin {
 12     private $pylist = array(
 13     a=>-20319,ai=>-20317,an=>-20304,ang=>-20295,ao=>-20292,
 14     ba=>-20283,bai=>-20265,ban=>-20257,bang=>-20242,bao=>-20230,bei=>-20051,ben=>-20036,beng=>-20032,bi=>-20026,bian=>-20002,biao=>-19990,bie=>-19986,bin=>-19982,bing=>-19976,bo=>-19805,bu=>-19784,
 15     ca=>-19775,cai=>-19774,can=>-19763,cang=>-19756,cao=>-19751,ce=>-19746,ceng=>-19741,cha=>-19739,chai=>-19728,chan=>-19725,chang=>-19715,chao=>-19540,che=>-19531,chen=>-19525,cheng=>-19515,chi=>-19500,chong=>-19484,chou=>-19479,chu=>-19467,chuai=>-19289,chuan=>-19288,chuang=>-19281,chui=>-19275,chun=>-19270,chuo=>-19263,ci=>-19261,cong=>-19249,cou=>-19243,cu=>-19242,cuan=>-19238,cui=>-19235,cun=>-19227,cuo=>-19224,
 16     da=>-19218,dai=>-19212,dan=>-19038,dang=>-19023,dao=>-19018,de=>-19006,deng=>-19003,di=>-18996,dian=>-18977,diao=>-18961,die=>-18952,ding=>-18783,diu=>-18774,dong=>-18773,dou=>-18763,du=>-18756,duan=>-18741,dui=>-18735,dun=>-18731,duo=>-18722,
 17     e=>-18710,en=>-18697,er=>-18696,
 18     fa=>-18526,fan=>-18518,fang=>-18501,fei=>-18490,fen=>-18478,feng=>-18463,fo=>-18448,fou=>-18447,fu=>-18446,
 19     ga=>-18239,gai=>-18237,gan=>-18231,gang=>-18220,gao=>-18211,ge=>-18201,gei=>-18184,gen=>-18183,geng=>-18181,gong=>-18012,gou=>-17997,gu=>-17988,gua=>-17970,guai=>-17964,guan=>-17961,guang=>-17950,gui=>-17947,
 20 gun=>-17931,guo=>-17928,
 21     ha=>-17922,hai=>-17759,han=>-17752,hang=>-17733,hao=>-17730,he=>-17721,hei=>-17703,hen=>-17701,heng=>-17697,hong=>-17692,hou=>-17683,hu=>-17676,hua=>-17496,huai=>-17487,huan=>-17482,huang=>-17468,hui=>-17454,
 22 hun=>-17433,huo=>-17427,
 23     ji=>-17417,jia=>-17202,jian=>-17185,jiang=>-16983,jiao=>-16970,jie=>-16942,jin=>-16915,jing=>-16733,jiong=>-16708,jiu=>-16706,ju=>-16689,juan=>-16664,jue=>-16657,jun=>-16647,
 24     ka=>-16474,kai=>-16470,kan=>-16465,kang=>-16459,kao=>-16452,ke=>-16448,ken=>-16433,keng=>-16429,kong=>-16427,kou=>-16423,ku=>-16419,kua=>-16412,kuai=>-16407,kuan=>-16403,kuang=>-16401,kui=>-16393,kun=>-16220,kuo=>-16216,
 25     la=>-16212,lai=>-16205,lan=>-16202,lang=>-16187,lao=>-16180,le=>-16171,lei=>-16169,leng=>-16158,li=>-16155,lia=>-15959,lian=>-15958,liang=>-15944,liao=>-15933,lie=>-15920,lin=>-15915,ling=>-15903,liu=>-15889,
 26 long=>-15878,lou=>-15707,lu=>-15701,lv=>-15681,luan=>-15667,lue=>-15661,lun=>-15659,luo=>-15652,
 27     ma=>-15640,mai=>-15631,man=>-15625,mang=>-15454,mao=>-15448,me=>-15436,mei=>-15435,men=>-15419,meng=>-15416,mi=>-15408,mian=>-15394,miao=>-15385,mie=>-15377,min=>-15375,ming=>-15369,miu=>-15363,mo=>-15362,mou=>-15183,mu=>-15180,
 28     na=>-15165,nai=>-15158,nan=>-15153,nang=>-15150,nao=>-15149,ne=>-15144,nei=>-15143,nen=>-15141,neng=>-15140,ni=>-15139,nian=>-15128,niang=>-15121,niao=>-15119,nie=>-15117,nin=>-15110,ning=>-15109,niu=>-14941,
 29 nong=>-14937,nu=>-14933,nv=>-14930,nuan=>-14929,nue=>-14928,nuo=>-14926,
 30     o=>-14922,ou=>-14921,
 31     pa=>-14914,pai=>-14908,pan=>-14902,pang=>-14894,pao=>-14889,pei=>-14882,pen=>-14873,peng=>-14871,pi=>-14857,pian=>-14678,piao=>-14674,pie=>-14670,pin=>-14668,ping=>-14663,po=>-14654,pu=>-14645,
 32     qi=>-14630,qia=>-14594,qian=>-14429,qiang=>-14407,qiao=>-14399,qie=>-14384,qin=>-14379,qing=>-14368,qiong=>-14355,qiu=>-14353,qu=>-14345,quan=>-14170,que=>-14159,qun=>-14151,
 33     ran=>-14149,rang=>-14145,rao=>-14140,re=>-14137,ren=>-14135,reng=>-14125,ri=>-14123,rong=>-14122,rou=>-14112,ru=>-14109,ruan=>-14099,rui=>-14097,run=>-14094,ruo=>-14092,
 34     sa=>-14090,sai=>-14087,san=>-14083,sang=>-13917,sao=>-13914,se=>-13910,sen=>-13907,seng=>-13906,sha=>-13905,shai=>-13896,shan=>-13894,shang=>-13878,shao=>-13870,she=>-13859,shen=>-13847,sheng=>-13831,shi=>-13658,shou=>-13611,shu=>-13601,shua=>-13406,shuai=>-13404,shuan=>-13400,shuang=>-13398,shui=>-13395,shun=>-13391,shuo=>-13387,si=>-13383,song=>-13367,sou=>-13359,su=>-13356,suan=>-13343,sui=>-13340,sun=>-13329,suo=>-13326,
 35     ta=>-13318,tai=>-13147,tan=>-13138,tang=>-13120,tao=>-13107,te=>-13096,teng=>-13095,ti=>-13091,tian=>-13076,tiao=>-13068,tie=>-13063,ting=>-13060,tong=>-12888,tou=>-12875,tu=>-12871,tuan=>-12860,tui=>-12858,tun=>-12852,tuo=>-12849,
 36     wa=>-12838,wai=>-12831,wan=>-12829,wang=>-12812,wei=>-12802,wen=>-12607,weng=>-12597,wo=>-12594,wu=>-12585,
 37     xi=>-12556,xia=>-12359,xian=>-12346,xiang=>-12320,xiao=>-12300,xie=>-12120,xin=>-12099,xing=>-12089,xiong=>-12074,xiu=>-12067,xu=>-12058,xuan=>-12039,xue=>-11867,xun=>-11861,
 38     ya=>-11847,yan=>-11831,yang=>-11798,yao=>-11781,ye=>-11604,yi=>-11589,yin=>-11536,ying=>-11358,yo=>-11340,yong=>-11339,you=>-11324,yu=>-11303,yuan=>-11097,yue=>-11077,yun=>-11067,
 39     za=>-11055,zai=>-11052,zan=>-11045,zang=>-11041,zao=>-11038,ze=>-11024,zei=>-11020,zen=>-11019,zeng=>-11018,zha=>-11014,zhai=>-10838,zhan=>-10832,zhang=>-10815,zhao=>-10800,zhe=>-10790,zhen=>-10780,zheng=>-10764,zhi=>-10587,zhong=>-10544,zhou=>-10533,zhu=>-10519,zhua=>-10331,zhuai=>-10329,zhuan=>-10328,zhuang=>-10322,zhui=>-10315,zhun=>-10309,zhuo=>-10307,zi=>-10296,zong=>-10281,zou=>-10274,zu=>-10270,zuan=>-10262,
 40 zui=>-10260,zun=>-10256,zuo=>-10254
 41     );
 42     
 43     
 44     /**
 45      *+---------------------------------------------------------------------------------
 46      *    获取全部拼音
 47      *+---------------------------------------------------------------------------------
 48      *    @return string 
 49      *+---------------------------------------------------------------------------------
 50      */
 51     public function getAllPY($chinese, $delimiter = , $length = 0,$charset=utf-8) {
 52         if($charset != gb2312) $chinese = $this->_U2_Utf8_Gb($chinese);
 53        $py = $this->zh_to_pys($chinese, $delimiter);
 54        if($length) {
 55            $py = substr($py, 0, $length);
 56        }
 57        return $py;
 58     }
 59     
 60     /**
 61      *+--------------------------------------------------------------------------------
 62      *    获取拼音首字母
 63      *+--------------------------------------------------------------------------------
 64      *    @return string
 65      *+--------------------------------------------------------------------------------
 66      */
 67     public function getFirstPY($chinese,$charset=utf-8){
 68       if($charset != gb2312) $chinese = $this->_U2_Utf8_Gb($chinese);
 69        $result =  ;
 70        for ($i=0; $i<strlen($chinese); $i++) {
 71            $p = ord(substr($chinese,$i,1));
 72            if ($p>160) {
 73               $q = ord(substr($chinese,++$i,1));
 74               $p = $p*256 + $q - 65536;
 75            }
 76            $result .= substr($this->zh_to_py($p),0,1);
 77        }
 78        return $result ;
 79     }
 80   
 81       public function _U2_Utf8_Gb($_C){
 82             $_String = ;
 83             if($_C < 0x80) $_String .= $_C;
 84             elseif($_C < 0x800)
 85             {
 86             $_String .= chr(0xC0 | $_C>>6);
 87             $_String .= chr(0x80 | $_C & 0x3F);
 88             }elseif($_C < 0x10000){
 89             $_String .= chr(0xE0 | $_C>>12);
 90             $_String .= chr(0x80 | $_C>>6 & 0x3F);
 91             $_String .= chr(0x80 | $_C & 0x3F);
 92             } elseif($_C < 0x200000) {
 93             $_String .= chr(0xF0 | $_C>>18);
 94             $_String .= chr(0x80 | $_C>>12 & 0x3F);
 95             $_String .= chr(0x80 | $_C>>6 & 0x3F);
 96             $_String .= chr(0x80 | $_C & 0x3F);
 97             }
 98             return iconv(UTF-8, GB2312, $_String);
 99     }
100  
101     private function zh_to_py($num, $blank = ) {
102        if($num>0 && $num<160 ) {
103            return chr($num);
104        } elseif ($num<-20319||$num>-10247) {
105            return $blank;
106        } else {
107            foreach ($this->pylist as $py => $code) {
108               if($code > $num) break;
109               $result = $py;
110            }
111            return $result;
112        }
113     }
114       
115     private function zh_to_pys($chinese, $delimiter =  , $first=0){
116        $result = array();
117        for($i=0; $i<strlen($chinese); $i++) {
118            $p = ord(substr($chinese,$i,1));
119            if($p>160) {
120               $q = ord(substr($chinese,++$i,1));
121               $p = $p*256 + $q - 65536;
122            }
123            $result[] = $this->zh_to_py($p);
124            if ($first) {
125               return $result[0];
126            }
127        }
128        return implode($delimiter, $result);
129     }
130 }

 

 

 

 

 

     好了,今天就给大家分享到这里了。  我,秋峰,phper,目前自创业,做项目系统开发,php后端加小程序前端结合  今天就给大家分享到这里,希望对大家有所帮助。欢迎交流  大家相互学习 共同提高 我的 微信号:qiufeng2999

 

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