Jquery 使用ajax录制wav音频文件并将其上载到服务器
我正在尝试开发一个HTML页面，使用HTML、CSS、JavaScript和jQuery，其中包括从用户那里捕获音频、保存音频然后使用Ajax调用将其发送到服务器的按钮。我不知道怎么做。我是UI开发新手。 我能够录制语音，但在加载文档时，我收到错误消息-“未捕获类型错误：无法读取未定义的属性“exportWAV” 在Object.export（Fr.voice.js:137） 在home.html:57中，单击submit，控制台中会显示blob not defined错误消息。 这是我到现在为止所发展的。我在fr.voice.js文件中遇到错误。我不知道如何修复它。帮帮我Jquery 使用ajax录制wav音频文件并将其上载到服务器,jquery,server,audio-recording,Jquery,Server,Audio Recording,我正在尝试开发一个HTML页面，使用HTML、CSS、JavaScript和jQuery，其中包括从用户那里捕获音频、保存音频然后使用Ajax调用将其发送到服务器的按钮。我不知道怎么做。我是UI开发新手。 我能够录制语音，但在加载文档时，我收到错误消息-“未捕获类型错误：无法读取未定义的属性“exportWAV” 在Object.export（Fr.voice.js:137） 在home.html:57中，单击submit，控制台中会显示blob not defined错误消息。 这是我到现在为
<!DOCTYPE html>
<html>
<head>
<script src="src/recorder.js"></script>
<script src="src/Fr.voice.js"></script>
<script src="js/jquery.js"></script>
<script src="js/app.js"></script>
</head>
<body>
<div>
<h2>Audio record and playback</h2>
<p>
<button id="startRecord">start</button>
<button id="stopRecord" disabled>stop</button>
<button id="myform" onclick="submitted()">submit</button>
</p>
<p>
<audio id="recordedAudio"></audio>
<a id="audioDownload"></a>
</p>
</div>
<script>
var audioChunks;
var startRecord = document.getElementById("startRecord");
var stopRecord = document.getElementById("stopRecord");
var recordedAudio = document.getElementById("recordedAudio");
startRecord.onclick = e => {
startRecord.disabled = true;
stopRecord.disabled=false;
// This will prompt for permission if not allowed earlier
navigator.mediaDevices.getUserMedia({audio:true})
.then(stream => {
audioChunks = [];
rec = new MediaRecorder(stream);
rec.ondataavailable = e => {
audioChunks.push(e.data);
if (rec.state == "inactive"){
let blob = new Blob(audioChunks,{type:'audio/wav'});
recordedAudio.src = URL.createObjectURL(blob);
recordedAudio.controls=true;
recordedAudio.autoplay=true;
audioDownload.href = recordedAudio.src;
audioDownload.download = 'wav';
audioDownload.innerHTML = 'download';
}
}
rec.start();
})
.catch(e=>console.log(e));
}
stopRecord.onclick = e => {
startRecord.disabled = false;
stopRecord.disabled=true;
rec.stop();
}
Fr.voice.export("blob");
function submitted() {
var formData = new FormData();
formData.append('file', blob);
$.ajax({
url: "upload.php",
type: 'POST',
data: formData,
contentType: false,
processData: false,
success: function(url) {
$("#audio").attr("src", url);
$("#audio")[0].play();
alert("Saved In Server. See audio element's src for URL");
}
});
};
</script>
</body>
</html>
**app.js**
function restore(){
$("#record, #live").removeClass("disabled");
$("#pause").replaceWith('<a class="button one" id="pause">Pause</a>');
$(".one").addClass("disabled");
Fr.voice.stop();
}
function makeWaveform(){
var analyser = Fr.voice.recorder.analyser;
var bufferLength = analyser.frequencyBinCount;
var dataArray = new Uint8Array(bufferLength);
var WIDTH = 500,
HEIGHT = 200;
var canvasCtx = $("#level")[0].getContext("2d");
canvasCtx.clearRect(0, 0, WIDTH, HEIGHT);
function draw() {
var drawVisual = requestAnimationFrame(draw);
analyser.getByteTimeDomainData(dataArray);
canvasCtx.fillStyle = 'rgb(200, 200, 200)';
canvasCtx.fillRect(0, 0, WIDTH, HEIGHT);
canvasCtx.lineWidth = 2;
canvasCtx.strokeStyle = 'rgb(0, 0, 0)';
canvasCtx.beginPath();
var sliceWidth = WIDTH * 1.0 / bufferLength;
var x = 0;
for(var i = 0; i < bufferLength; i++) {
var v = dataArray[i] / 128.0;
var y = v * HEIGHT/2;
if(i === 0) {
canvasCtx.moveTo(x, y);
} else {
canvasCtx.lineTo(x, y);
}
x += sliceWidth;
}
canvasCtx.lineTo(WIDTH, HEIGHT/2);
canvasCtx.stroke();
};
draw();
}
$(document).ready(function(){
$(document).on("click", "#record:not(.disabled)", function(){
Fr.voice.record($("#live").is(":checked"), function(){
$(".recordButton").addClass("disabled");
$("#live").addClass("disabled");
$(".one").removeClass("disabled");
makeWaveform();
});
});
$(document).on("click", "#recordFor5:not(.disabled)", function(){
Fr.voice.record($("#live").is(":checked"), function(){
$(".recordButton").addClass("disabled");
$("#live").addClass("disabled");
$(".one").removeClass("disabled");
makeWaveform();
});
Fr.voice.stopRecordingAfter(5000, function(){
alert("Recording stopped after 5 seconds");
});
});
$(document).on("click", "#pause:not(.disabled)", function(){
if($(this).hasClass("resume")){
Fr.voice.resume();
$(this).replaceWith('<a class="button one" id="pause">Pause</a>');
}else{
Fr.voice.pause();
$(this).replaceWith('<a class="button one resume" id="pause">Resume</a>');
}
});
$(document).on("click", "#stop:not(.disabled)", function(){
restore();
});
$(document).on("click", "#play:not(.disabled)", function(){
if($(this).parent().data("type") === "mp3"){
Fr.voice.exportMP3(function(url){
$("#audio").attr("src", url);
$("#audio")[0].play();
}, "URL");
}else{
Fr.voice.export(function(url){
$("#audio").attr("src", url);
$("#audio")[0].play();
}, "URL");
}
restore();
});
$(document).on("click", "#download:not(.disabled)", function(){
if($(this).parent().data("type") === "mp3"){
Fr.voice.exportMP3(function(url){
$("<a href='" + url + "' download='MyRecording.mp3'></a>")[0].click();
}, "URL");
}else{
Fr.voice.export(function(url){
$("<a href='" + url + "' download='MyRecording.wav'></a>")[0].click();
}, "URL");
}
restore();
});
$(document).on("click", "#base64:not(.disabled)", function(){
if($(this).parent().data("type") === "mp3"){
Fr.voice.exportMP3(function(url){
alert("Check the web console for the URL");
$("<a href='"+ url +"' target='_blank'></a>")[0].click();
}, "base64");
}else{
Fr.voice.export(function(url){
alert("Check the web console for the URL");
$("<a href='"+ url +"' target='_blank'></a>")[0].click();
}, "base64");
}
restore();
});$(document).on("click", "#save:not(.disabled)", function(){
function upload(blob){
var formData = new FormData();
formData.append('file', blob);
$.ajax({
url: "upload.php",
type: 'POST',
data: formData,
contentType: false,
processData: false,
success: function(url) {
$("#audio").attr("src", url);
$("#audio")[0].play();
alert("Saved In Server. See audio element's src for URL");
}
});
}
if($(this).parent().data("type") === "mp3"){
Fr.voice.exportMP3(upload, "blob");
}else{
Fr.voice.export(upload, "blob");
}
restore();
});
});
**Fr.voice.js**
(function(window){
window.Fr = window.Fr || {};
Fr.voice = {
mp3WorkerPath: "src/mp3Worker.js",
stream: false,
input: false,
init_called: false,
stopRecordingTimeout: false,
init: function(){
try {
// Fix up for prefixing
window.AudioContext = window.AudioContext||window.webkitAudioContext;
navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia
|| navigator.mozGetUserMedia || navigator.msGetUserMedia;
window.URL = window.URL || window.webkitURL;
if(navigator.getUserMedia === false){
alert('getUserMedia() is not supported in your browser');
}
this.context = new AudioContext();
}catch(e) {
alert('Web Audio API is not supported in this browser');
}
},
record: function(output, finishCallback, recordingCallback){
var finishCallback = finishCallback || function(){};
var recordingCallback = recordingCallback || function(){};
if(this.init_called === false){
this.init();
this.init_called = true;
}
var $that = this;
navigator.getUserMedia({audio: true}, function(stream){
$that.input = $that.context.createMediaStreamSource(stream);
if(output === true){
$that.input.connect($that.context.destination);
}
$that.recorder = new Recorder($that.input, {
'mp3WorkerPath': $that.mp3WorkerPath,
'recordingCallback': recordingCallback
});
$that.stream = stream;
$that.recorder.record();
finishCallback(stream);
}, function() {
alert('No live audio input');
});
},
pause: function(){
this.recorder.stop();
},
resume: function(){
this.recorder.record();
},
stop: function(){
this.recorder.stop();
this.recorder.clear();
this.stream.getTracks().forEach(function (track) {
track.stop();
});
return this;
},
export: function(callback, type){
this.recorder.exportWAV(function(blob){
Fr.voice.callExportCallback(blob, callback, type);
});
},
exportMP3: function(callback, type){
this.recorder.exportMP3(function(blob){
Fr.voice.callExportCallback(blob, callback, type);
});
},
callExportCallback: function(blob, callback, type) {
if(typeof type === "undefined" || type == "blob"){
callback(blob);
}else if (type === "base64"){
var reader = new window.FileReader();
reader.readAsDataURL(blob);
reader.onloadend = function() {
base64data = reader.result;
callback(base64data);
};
}else if(type === "URL"){
var url = URL.createObjectURL(blob);
callback(url);
}
},
stopRecordingAfter: function(time, callback){
var callback = callback || function(){};
clearTimeout(this.stopRecordingTimeout);
this.stopRecordingTimeout = setTimeout(function(){
Fr.voice.pause();
callback();
}, time);
}
};
})(window);
**recorder.js**---------->
(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?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="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 ? obj : { default: obj };
}
function _classCallCheck(instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("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: 1,
recordingCallback: function(){},
mimeType: 'audio/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, 2, 2);
this.node.onaudioprocess = function (e) {
if (!_this.recording) return;
var buffer = [];
var channelData;
for (var channel = 0; channel < _this.config.numChannels; channel++) {
buffer.push(e.inputBuffer.getChannelData(channel));
channelData = e.inputBuffer.getChannelData(channel)
buffer.push(channelData);
_this.config.recordingCallback(buffer);
}
_this.worker.postMessage({
command: 'record',
buffer: buffer
});
};
this.analyser = this.context.createAnalyser();
this.analyser.smoothingTimeConstant = 0.3;
this.analyser.fftSize = 1024;
source.connect(this.analyser);
this.analyser.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 ? s * 0x8000 : s * 0x7FFF, true);
}
}
function writeString(view, offset, string) {
for (var i = 0; i < string.length; i++) {
view.setUint8(offset + i, string.charCodeAt(i));
}
}
function encodeWAV(samples) {
var buffer = new ArrayBuffer(44 + samples.length * 2);
var view = new DataView(buffer);
/* RIFF identifier */
writeString(view, 0, 'RIFF');
/* RIFF chunk length */
view.setUint32(4, 36 + samples.length * 2, true);
/* RIFF type */
writeString(view, 8, 'WAVE');
/* format chunk identifier */
writeString(view, 12, 'fmt ');
/* format chunk length */
view.setUint32(16, 16, true);
/* sample format (raw) */
view.setUint16(20, 1, true);
/* channel count */
view.setUint16(22, numChannels, true);
/* sample rate */
view.setUint32(24, sampleRate, true);
/* byte rate (sample rate * block align) */
view.setUint32(28, sampleRate * 4, true);
/* block align (channel count * bytes per sample) */
view.setUint16(32, numChannels * 2, true);
/* bits per sample */
view.setUint16(34, 16, true);
/* data chunk identifier */
writeString(view, 36, 'data');
/* data chunk length */
view.setUint32(40, samples.length * 2, true);
floatTo16BitPCM(view, 44, samples);
return view;
}
}, self);
this.worker.postMessage({
command: 'init',
config: {
sampleRate: this.context.sampleRate,
numChannels: this.config.numChannels
}
});
this.worker.onmessage = function (e) {
var cb = _this.callbacks[e.data.command].pop();
if (typeof cb == 'function') {
cb(e.data.data);
}
};
}
_createClass(Recorder, [{
key: 'record',
value: function record() {
this.recording = true;
}
}, {
key: 'stop',
value: function stop() {
this.recording = false;
}
}, {
key: 'clear',
value: function clear() {
this.worker.postMessage({ command: 'clear' });
}
}, {
key: 'getBuffer',
value: function getBuffer(cb) {
cb = cb || this.config.callback;
if (!cb) throw new Error('Callback not set');
this.callbacks.getBuffer.push(cb);
this.worker.postMessage({ command: 'getBuffer' });
}
}, {
key: 'exportWAV',
value: function exportWAV(cb, mimeType) {
mimeType = mimeType || this.config.mimeType;
cb = cb || this.config.callback;
if (!cb) throw new Error('Callback not set');
this.callbacks.exportWAV.push(cb);
this.worker.postMessage({
command: 'exportWAV',
type: mimeType
});
}
}, {
key: 'parseWav',
value: function parseWav(wav){
function readInt(i, bytes) {
var ret = 0,
shft = 0;
while (bytes) {
ret += wav[i] << shft;
shft += 8;
i++;
bytes--;
}
return ret;
}
if (readInt(20, 2) != 1) throw 'Invalid compression code, not PCM';
if (readInt(22, 2) != 1) throw 'Invalid number of channels, not 1';
return {
sampleRate: readInt(24, 4),
bitsPerSample: readInt(34, 2),
samples: wav.subarray(44)
};
}
}, {
key: "Uint8ArrayToFloat32Array",
value: function Uint8ArrayToFloat32Array(u8a){
var f32Buffer = new Float32Array(u8a.length);
for (var i = 0; i < u8a.length; i++) {
var value = u8a[i << 1] + (u8a[(i << 1) + 1] << 8);
if (value >= 0x8000) value |= ~0x7FFF;
f32Buffer[i] = value / 0x8000;
}
return f32Buffer;
}
}, {
key: "encode64",
value: function encode64(buffer) {
var binary = '',
bytes = new Uint8Array( buffer ),
len = bytes.byteLength;
for (var i = 0; i < len; i++) {
binary += String.fromCharCode( bytes[ i ] );
}
return window.btoa( binary );
}
}, {
key: 'exportMP3',
value: function exportMP3(cb){
// MP3 conversion
var currCallback = cb || this.config.callback;
var $that = this;
var encoderWorker = new Worker(this.config.mp3WorkerPath);
this.exportWAV(function(blob){
var arrayBuffer;
var fileReader = new FileReader();
fileReader.onload = function(){
arrayBuffer = this.result;
var buffer = new Uint8Array(arrayBuffer),
data = $that.parseWav(buffer);
encoderWorker.postMessage({ cmd: 'init', config:{
mode: 3,
channels: 1,
samplerate: data.sampleRate,
bitrate: data.bitsPerSample
}});
encoderWorker.postMessage({ cmd: 'encode', buf: $that.Uint8ArrayToFloat32Array(data.samples) });
encoderWorker.postMessage({
cmd: 'finish'
});
encoderWorker.onmessage = function(e) {
if (e.data.cmd === 'data') {
currCallback(new Blob([new Uint8Array(e.data.buf)], {type: "audio/mp3"}));
console.log("Done converting to MP3");
}
};
};
fileReader.readAsArrayBuffer(blob);
});
}
}], [{
key: 'forceDownload',
value: function forceDownload(blob, filename) {
var url = (window.URL || window.webkitURL).createObjectURL(blob);
var link = window.document.createElement('a');
link.href = url;
link.download = filename || 'output.wav';
var click = document.createEvent("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]*?)}$/)[1];
var url = global.URL.createObjectURL(new global.Blob([functionBody], { type: "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" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}]},{},[1])(1)
});
录音与回放
开始
停止
提交
');
$（.one”）.addClass（“禁用”）；
Fr.voice.stop（）；
}
函数makeWaveform（）{
var分析仪=Fr.voice.recorder.Analyzer；
var bufferLength=分析仪频率BINCOUNT；
var DATARRAY=新的Uint8Array（缓冲区长度）；
可变宽度=500，
高度=200；
var canvasCtx=$（“#level”）[0].getContext（“2d”）；
canvasCtx.clearRect（0，0，宽度，高度）；
函数绘图（）{
var drawVisual=requestAnimationFrame（绘制）；
Analyzer.getByteTimeDomainData（数据数组）；
canvasCtx.fillStyle='rgb（200200200200）'；
canvasCtx.fillRect（0，0，宽度，高度）；
canvasCtx.lineWidth=2；
canvasCtx.strokeStyle='rgb（0,0,0）'；
canvasCtx.beginPath（）；
var sliceWidth=宽度*1.0/缓冲区长度；
var x=0；
对于（变量i=0；i