之前在钻研百度的实时语音辨认，并利用到了微信小程序中，写篇文章分享一下。
先看看实现的成果吧
前置条件
申请百度实时语音辨认key 百度AI接入指南创立小程序
设置小程序录音参数
在index.js中输出
const recorderManager = wx.getRecorderManager() const recorderConfig = { duration: 600000, frameSize: 5, //指定当录音大小达到5KB时触发onFrameRecorded format: 'PCM', //文档中没写这个参数也能够触发onFrameRecorded的回调，不过楼主亲测能够应用 sampleRate: 16000, encodeBitRate: 96000, numberOfChannels: 1 }应用websocket连贯
linkSocket() { let _this = this //这里的sn是百度实时语音用于排查日志，这里我图不便就用工夫戳了 let sn = new Date().getTime() wx.showLoading({ title: '辨认中...' }) recorderManager.start(recorderConfig) //开启链接 wx.connectSocket({ url: 'wss://vop.baidu.com/realtime_asr?sn=' + sn, protocols: ['websocket'], success() { console.log('连贯胜利') _this.initEventHandle() } }) }, //监听websocket返回的数据 initEventHandle() { let _this = this wx.onSocketMessage((res) => { let result = JSON.parse(res.data.replace('\n','')) if(result.type == 'MID_TEXT'){ _this.tran(result.result, 'value') _this.setData({ textDis: 'none', value: result.result, }) } if(result.type == 'FIN_TEXT'){ let value = _this.data.text let tranStr = value + result.result _this.tran(tranStr, 'text') _this.setData({ value: '', valueEn: '', textDis: 'block', text: tranStr, }) } }) wx.onSocketOpen(() => //发送数据帧 _this.wsStart() console.log('WebSocket连贯关上') }) wx.onSocketError(function (res) { console.log('WebSocket连贯关上失败') }) wx.onSocketClose(function (res) { console.log('WebSocket 已敞开！') }) },发送开始、音频数据、完结帧
wsStart() { let config = { type: "START", data: { appid: XXXXXXXXX,//百度实时语音辨认appid appkey: "XXXXXXXXXXXXXXXXXX",//百度实时语音辨认key dev_pid: 15372, cuid: "cuid-1", format: "pcm", sample: 16000 } } wx.sendSocketMessage({ data:JSON.stringify(config), success(res){ console.log('发送开始帧胜利') } }) }, wsSend(data){ wx.sendSocketMessage({ data:data, success(res){ console.log('发送数据帧胜利') } }) }, wsStop(){ let _this = this this.setData({ click: true, }) _this.stop() let config = { type: "FINISH" } wx.hideLoading() recorderManager.stop() wx.sendSocketMessage({ data:JSON.stringify(config), success(res){ console.log('发送完结帧胜利') } }) },小程序录音回调
onShow: function () { let _this = this recorderManager.onFrameRecorded(function (res){ let data = res.frameBuffer _this.wsSend(data) }) recorderManager.onInterruptionBegin(function (res){ console.log('录音中断') _this.wsStopForAcc() }) recorderManager.onStop(function (res){ console.log('录音进行') }) },