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js实现录音上传功能
站长资源 2024/11/26 佚名
2 0

本文实例为大家分享了js代码实现录音上传，供大家参考，具体内容如下

1.html页面
2.Recorder.js内容
3.flask写法

1.html页面

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title id="title"></title>

</head>
<body>
<audio id="player" autoplay controls></audio>
<p>
 <button onclick="start_reco()">开始录音</button>
</p>
<p>
 <button onclick="ai_reco()" style="background-color: cornflowerblue">发送语音指令</button>
</p>
</body>
<script type="application/javascript" src="/UploadFiles/2021-04-02/jquery-3.3.1.min.js">


2.Recorder.js内容


直接复制保存即可





(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Recorder = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n"function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
"use strict";

module.exports = require("./recorder").Recorder;

},{"./recorder":2}],2:[function(require,module,exports){
'use strict';

var _createClass = (function () {
 function defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
   var descriptor = props[i];descriptor.enumerable = descriptor.enumerable || false;descriptor.configurable = true;if ("value" in descriptor) descriptor.writable = true;Object.defineProperty(target, descriptor.key, descriptor);
  }
 }return function (Constructor, protoProps, staticProps) {
  if (protoProps) defineProperties(Constructor.prototype, protoProps);if (staticProps) defineProperties(Constructor, staticProps);return Constructor;
 };
})();

Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.Recorder = undefined;

var _inlineWorker = require('inline-worker');

var _inlineWorker2 = _interopRequireDefault(_inlineWorker);

function _interopRequireDefault(obj) {
 return obj && obj.__esModule "Cannot call a class as a function");
 }
}

var Recorder = exports.Recorder = (function () {
 function Recorder(source, cfg) {
  var _this = this;

  _classCallCheck(this, Recorder);

  this.config = {
   bufferLen: 4096,
   numChannels: 2,
   mimeType: 'audio_pcm/wav'
  };
  this.recording = false;
  this.callbacks = {
   getBuffer: [],
   exportWAV: []
  };

  Object.assign(this.config, cfg);
  this.context = source.context;
  this.node = (this.context.createScriptProcessor || this.context.createJavaScriptNode).call(this.context, this.config.bufferLen, this.config.numChannels, this.config.numChannels);

  this.node.onaudioprocess = function (e) {
   if (!_this.recording) return;

   var buffer = [];
   for (var channel = 0; channel < _this.config.numChannels; channel++) {
    buffer.push(e.inputBuffer.getChannelData(channel));
   }
   _this.worker.postMessage({
    command: 'record',
    buffer: buffer
   });
  };

  source.connect(this.node);
  this.node.connect(this.context.destination); //this should not be necessary

  var self = {};
  this.worker = new _inlineWorker2.default(function () {
   var recLength = 0,
    recBuffers = [],
    sampleRate = undefined,
    numChannels = undefined;

   self.onmessage = function (e) {
    switch (e.data.command) {
     case 'init':
      init(e.data.config);
      break;
     case 'record':
      record(e.data.buffer);
      break;
     case 'exportWAV':
      exportWAV(e.data.type);
      break;
     case 'getBuffer':
      getBuffer();
      break;
     case 'clear':
      clear();
      break;
    }
   };

   function init(config) {
    sampleRate = config.sampleRate;
    numChannels = config.numChannels;
    initBuffers();
   }

   function record(inputBuffer) {
    for (var channel = 0; channel < numChannels; channel++) {
     recBuffers[channel].push(inputBuffer[channel]);
    }
    recLength += inputBuffer[0].length;
   }

   function exportWAV(type) {
    var buffers = [];
    for (var channel = 0; channel < numChannels; channel++) {
     buffers.push(mergeBuffers(recBuffers[channel], recLength));
    }
    var interleaved = undefined;
    if (numChannels === 2) {
     interleaved = interleave(buffers[0], buffers[1]);
    } else {
     interleaved = buffers[0];
    }
    var dataview = encodeWAV(interleaved);
    var audioBlob = new Blob([dataview], { type: type });

    self.postMessage({ command: 'exportWAV', data: audioBlob });
   }

   function getBuffer() {
    var buffers = [];
    for (var channel = 0; channel < numChannels; channel++) {
     buffers.push(mergeBuffers(recBuffers[channel], recLength));
    }
    self.postMessage({ command: 'getBuffer', data: buffers });
   }

   function clear() {
    recLength = 0;
    recBuffers = [];
    initBuffers();
   }

   function initBuffers() {
    for (var channel = 0; channel < numChannels; channel++) {
     recBuffers[channel] = [];
    }
   }

   function mergeBuffers(recBuffers, recLength) {
    var result = new Float32Array(recLength);
    var offset = 0;
    for (var i = 0; i < recBuffers.length; i++) {
     result.set(recBuffers[i], offset);
     offset += recBuffers[i].length;
    }
    return result;
   }

   function interleave(inputL, inputR) {
    var length = inputL.length + inputR.length;
    var result = new Float32Array(length);

    var index = 0,
     inputIndex = 0;

    while (index < length) {
     result[index++] = inputL[inputIndex];
     result[index++] = inputR[inputIndex];
     inputIndex++;
    }
    return result;
   }

   function floatTo16BitPCM(output, offset, input) {
    for (var i = 0; i < input.length; i++, offset += 2) {
     var s = Math.max(-1, Math.min(1, input[i]));
     output.setInt16(offset, s < 0 "Event");
   click.initEvent("click", true, true);
   link.dispatchEvent(click);
  }
 }]);

 return Recorder;
})();

exports.default = Recorder;

},{"inline-worker":3}],3:[function(require,module,exports){
"use strict";

module.exports = require("./inline-worker");
},{"./inline-worker":4}],4:[function(require,module,exports){
(function (global){
"use strict";

var _createClass = (function () { function defineProperties(target, props) { for (var key in props) { var prop = props[key]; prop.configurable = true; if (prop.value) prop.writable = true; } Object.defineProperties(target, props); } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();

var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };

var WORKER_ENABLED = !!(global === global.window && global.URL && global.Blob && global.Worker);

var InlineWorker = (function () {
 function InlineWorker(func, self) {
 var _this = this;

 _classCallCheck(this, InlineWorker);

 if (WORKER_ENABLED) {
  var functionBody = func.toString().trim().match(/^function\s*\w*\s*\([\w\s,]*\)\s*{([\w\W]*"text/javascript" }));

  return new global.Worker(url);
 }

 this.self = self;
 this.self.postMessage = function (data) {
  setTimeout(function () {
  _this.onmessage({ data: data });
  }, 0);
 };

 setTimeout(function () {
  func.call(self);
 }, 0);
 }

 _createClass(InlineWorker, {
 postMessage: {
  value: function postMessage(data) {
  var _this = this;

  setTimeout(function () {
   _this.self.onmessage({ data: data });
  }, 0);
  }
 }
 });

 return InlineWorker;
})();

module.exports = InlineWorker;
}).call(this,typeof global !== "undefined" "undefined" "undefined" "htmlcode">



...
@app.route("/")
def index():
 return render_template("index.html")

@app.route("/receive_audio", methods=["POST"])
def receive_audio():
 file = request.files.get("audio")
 if file:
  filepath = os.path.join(BAISE_DIR, "data", "%s.m4a" % uuid4())
  file.save(filepath)

  text = baidu.auido2text(filepath)

  answer = tuling.chat(text)

  res = baidu.text2audio(answer)
  if res.get("err_no") == 200:
   return {"code": 200, "filename": res.get("filename")}

 return {"code": 201, "msg": "上传失败"}


@app.route("/get_audio/<filename>")
def get_audio(filename):
 return send_file(os.path.join(BAISE_DIR, "data", filename))

...





注意flask启动ip写成127.0.0.1 其他地址 js可能会报错


以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
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