更新记录

1.0.0（2021-06-03）

Hbuilderx 2.9.8 语音听写（流式版）WebAPI 文档 官方文档：https://www.xfyun.cn/doc/asr/voicedictation/API.html#%E6%8E%A5%E5%8F%A3%E8%AF%B4%E6%98%8E

平台兼容性

该目录文件为讯飞官方语音听写（流式版）demo 中封装的音频采集类、接口方案。并做了修改。

index.vue 中的 "socketUrl" "appId" 需要用户在 科大讯飞网站获取 ；

使用时需要更换成自己的；否则websocket 链接会出错

index.vue

data() {
    return {
        showText: '',
        receveText: '', //识别返回数据               
        resultTextTemp: '', // wpgs下的听写结果需要中间状态辅助记录
        audioData: [], //音频数据
        isTouch: false,
        socketUrl: 'wss://iat-api.xfyun.cn/v2/iat?authorization=YXBpX2tleT0iM2JmMmIwOTYwODJhODEyNzQ1MjQ1Nzg5NTBlODU5YzIiLCBhbGdvcml0aG09ImhtYWMtc2hhMjU2IiwgaGVhZGVycz0iaG9zdCBkYXRlIHJlcXVlc3QtbGluZSIsIHNpZ25hdHVyZT0iL1JITUM0MWFReTZWRmhmSC8rTzBVSHBneE41M3c1a0FmMmtYN3V6UjBxQT0i&date=Thu, 03 Jun 2021 02:40:57 GMT&host=iat-api.xfyun.cn',
        webSocket: null, //websocket 链接实例
        isConnect: false,
        status: 'null',
        audioContext: null,
        scriptProcessor: null,
        transWorker: null,
        audioTime: 60,
        appId: '666666',
        language: 'zh_cn',
        accent: 'mandarin'
    }
},

并且自行计算 获取；官方demo 中有详细说明：

官方 demo 链接：https://www.xfyun.cn/doc/asr/voicedictation/API.html#%E6%8E%A5%E5%8F%A3%E8%AF%B4%E6%98%8E

const API_SECRET = 'xxx'

const API_KEY = 'xxxx'

 function getWebSocketUrl() {
  return new Promise((resolve, reject) => {
    // 请求地址根据语种不同变化
    var url = 'wss://iat-api.xfyun.cn/v2/iat'
    var host = 'iat-api.xfyun.cn'
    var apiKey = API_KEY
    var apiSecret = API_SECRET
    var date = new Date().toGMTString()
    var algorithm = 'hmac-sha256'
    var headers = 'host date request-line'
    var signatureOrigin = `host: ${host}\ndate: ${date}\nGET /v2/iat HTTP/1.1`
    var signatureSha = CryptoJS.HmacSHA256(signatureOrigin, apiSecret)
    var signature = CryptoJS.enc.Base64.stringify(signatureSha)
    var authorizationOrigin = `api_key="${apiKey}", algorithm="${algorithm}", headers="${headers}", signature="${signature}"`
    var authorization = btoa(authorizationOrigin)
    url = `${url}?authorization=${authorization}&date=${date}&host=${host}`
    //url = `${url}?authorization=${authorization}&host=${host}`
    //url = 'wss://iat-api.xfyun.cn/v2/iat?authorization=YXBpX2tleT0iM2JmMmIwOTYwODJhODEyNzQ1MjQ1Nzg5NTBlODU5YzIiLCBhbGdvcml0aG09ImhtYWMtc2hhMjU2IiwgaGVhZGVycz0iaG9zdCBkYXRlIHJlcXVlc3QtbGluZSIsIHNpZ25hdHVyZT0ibTd2bWJUODZNdzZvSnhuaUxVQlE3UU9ueXdRK1NobG4veXVUc0lNaHNQYz0i&date=Mon, 31 May 2021 09:28:56 GMT&host=iat-api.xfyun.cn'
    console.log("url:",url)
    resolve(url)
  })
}