HTML-Code:
<!DOCTYPE html><html> <head> <meta http-equiv=Content-Type content=text/html; charset=utf-8 /> <title>火星黑洞</title> </head> <body> <div> <audio autoplay></audio> <input onclick=startRecording() type=button value=录音 /> < input onclick=stopRecording() type=button value=停止 /> <input onclick=playRecording() type=button value=播放 /> <input onclick=uploadAudio() type=button value=提交 /> <br /> <div id=recordingslist></div> </div> <script type=text/javascript src=js/HZRecorder .js></script> <script> var recorder; var audio = document.querySelector('audio'); function startRecording() { HZRecorder.get(function(rec) { recorder = rec; recorder.start(); }, { sampleBits: 16, sampleRate: 16000 }); } function stopRecording() { recorder.stop(); var blob = recorder.getBlob(); var url = URL.createObjectURL(blob); var div = document.createElement('div'); var au = document.createElement('audio'); var hf = document.createElement('a'); au.controls = true; au.src = url; hf.href = url; hf.download = new Date().toISOString() + '.wav'; hf.innerHTML = hf.download; div.appendChild(au); div.appendChild(hf); Recordingslist.appendChild(div); } function playRecording() { recorder.play(audio); } function uploadAudio() { recorder.upload(Handler1.ashx, function(state, e) { switch(state) { case 'uploading': //varcentComplete = Math.round(e.loaded * 100 / e.total) + '%'; break; case 'ok': //alert(e.target.responseText); warning(上传失败); break; case 'cancel': warning(上传被取消); } </script> </body></html>HZRecorder.js
(function (window) { //兼容 window.URL = window.URL || window.webkitURL; navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; var HZRecorder = function ( stream, config) { config = config || {}; config.sampleBits ||. 8 //采样数位 8, 16 config.sampleRate = config.sampleRate ||. //采样率(1/6 44100) var context = new (window.webkitAudioContext || window. AudioContext)(); var audioInput = context.createMediaStreamSource(stream); var createScript = context.createScriptProcessor ||. var recorder = createScript.apply(context, [4096, 1, 1]); var mp3ReceiveSuccess, currentErrorCallback; var audioData = { size: 0 [] //Weitere Informationen , inputSampleRate: context.sampleRate //Weitere Informationen , inputSampleBits: 16 //Weitere Informationen 8, 16 , inputSampleRate: config.sampleRate //Weitere Informationen , oututSampleBits: config.sampleBits // 8, 16 , input: function (data) { this.buffer.push(new Float32Array(data)); this.size += data.length; } , compress: function () { //合并压缩 //合并 var data = new Float32Array(this.size); var-Offset = 0; for (var i = 0; i < this.buffer.length; i++) { data.set(this.buffer[i], offset); offset += this.buffer[i].length; } //Verbesserung var compress = parseInt(this.inputSampleRate / this.outputSampleRate); var length = data.length / compress; var result = new Float32Array(length); Var-Index = 0, j = 0; while (index < length) { result[index] = data[j]; j += Komprimierung; index++; } Ergebnis zurückgeben; } , encodeWAV: function () { var sampleRate = Math.min(this.inputSampleRate, this.outputSampleRate); var sampleBits = Math.min(this.inputSampleBits, this.oututSampleBits); var bytes = this.compress(); var dataLength = bytes.length * (sampleBits / 8); var buffer = new ArrayBuffer(44 + dataLength); var data = new DataView(buffer); varchannelCount = 1;//Vergleich var offset = 0; var writeString = function (str) { for (var i = 0; i < str.length; i++) { data.setUint8(offset + i, str.charCodeAt(i)); } } // Zurück zum Anfang writeString('RIFF'); Versatz += 4; // 下个地址开始到文件尾总字节数,即文件大小-8 data.setUint32(offset, 36 + dataLength, true); Versatz += 4; // WAV-Funktion writeString('WAVE'); Versatz += 4; // Zurück zum Anfang writeString('fmt '); Versatz += 4; // 过滤字节,一般为 0x10 = 16 data.setUint32(offset, 16, true); Versatz += 4; // 格式类别 (PCM式采样数据) data.setUint16(offset, 1, true); Versatz += 2; // Zurück data.setUint16(offset,channelCount, true); Versatz += 2; // Fehler, Fehlerquote, Fehlerquote data.setUint32(offset, sampleRate, true); Versatz += 4; // 波形数据传输率 (每秒平均字节数) 单声道×每秒数据位数×每样本数据位/8 data.setUint32(offset,channelCount * sampleRate * (sampleBits / 8), true); Versatz += 4; // 快数据调整数 采样一次占用字节数 单声道×每样本的数据位数/8 data.setUint16(offset,channelCount * (sampleBits / 8), true); Versatz += 2; // Zurück zum Anfang data.setUint16(offset, sampleBits, true); Versatz += 2; // Zurück zum Anfang writeString('data'); Versatz += 4; // Fehlercode, Fehlercode-44 data.setUint32(offset, dataLength, true); Versatz += 4; // 写入采样数据 if (sampleBits === 8) { for (var i = 0; i < bytes.length; i++, offset++) { var s = Math.max(-1, Math.min(1, bytes [ich])); var val = s < 0 ? s * 0x8000 : s * 0x7FFF; val = parseInt(255 / (65535 / (val + 32768))); data.setInt8(offset, val, true); } } else { for (var i = 0; i < bytes.length; i++, offset += 2) { var s = Math.max(-1, Math.min(1, bytes[i])); data.setInt16(offset, s < 0 ? s * 0x8000 : s * 0x7FFF, true); } } return new Blob([data], { type: 'audio/wav' }); } }; //Weitere Informationen this.start = function () { audioInput.connect(recorder); recorder.connect(context.destination); } //Erweitert this.stop = function () { recorder.disconnect(); } //Erweiterte Funktion this.getBlob = function () { this.stop(); return audioData.encodeWAV(); } //Erweitert this.play = function (audio) { audio.src = window.URL.createObjectURL(this.getBlob()); } //上传 this.upload = function (url, callback) { var fd = new FormData(); fd.append(audioData, this.getBlob()); var xhr = new XMLHttpRequest(); if (callback) { xhr.upload.addEventListener(progress, function (e) { callback('uploading', e); }, false); xhr.addEventListener(load, function (e) { callback('ok', e); }, false); xhr.addEventListener(error, function (e) { callback('error', e); }, false); xhr.addEventListener(abort, function (e) { callback('cancel', e); }, false); } xhr.open(POST, url); xhr.send(fd); } //音频采集 recorder.onaudioprocess = function (e) { audioData.input(e.inputBuffer.getChannelData(0)); //record(e.inputBuffer.getChannelData(0)); } }; //抛出异常 HZRecorder.throwError = function (message) { Alert(message); throw new function () { this.toString = function () { return message; } } } //是否支持录音 HZRecorder.canRecording = (navigator.getUserMedia != null); //获取录音机 HZRecorder.get = function (callback, config) { if (callback) { if (navigator.getUserMedia) { navigator.getUserMedia( { audio: true } //只启用音频 , function (stream) { var rec = new HZRecorder(stream, config); callback(rec} , function (error) { switch (error.code || error.name) { case 'PERMISSION_DENIED': case 'PermissionDeniedError': HZRecorder.throwError('用户拒绝提供信息'); break; case 'NOT_SUPPORTED_ERROR': case 'NotSupportedError': HZRecorder.throwError('浏览器不支持硬件设备.'); break; HZRecorder.throwError('无法发现指定的硬件设备.'); }); } else { HZRecorder.throwErr('当前浏览器不支持录音功能。'); zurückkehren; } } } window.HZRecorder = HZRecorder;})(window);总结以上所述是小编给大家介绍的HTML5声音录制/播放功能的实现代码, 希望对大家有所帮助, 如果大家有任何疑问请给我留言,小编会及时回复大家的.在此也非常感谢大家对VeVb武林网网站的支持！