Vue实现悬浮框自由移动+录音功能的示例代码_vue.js_

// 兼容 window.URL = window.URL || window.webkitURL navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia let HZRecorder = function (stream, config) { config = config || {} config.sampleBits = config.sampleBits || 8 // 采样数位 8, 16 config.sampleRate = config.sampleRate || (16000) // 采样率(1/6 44100) let context = new (window.webkitAudioContext || window.AudioContext)() let audioInput = context.createMediaStreamSource(stream) let createScript = context.createScriptProcessor || context.createJavaScriptNode let recorder = createScript.apply(context, [4096, 1, 1]) let audioData = { size: 0, // 录音文件长度 buffer: [], // 录音缓存 inputSampleRate: context.sampleRate, // 输入采样率 inputSampleBits: 16, // 输入采样数位 8, 16 outputSampleRate: config.sampleRate, // 输出采样率 oututSampleBits: config.sampleBits, // 输出采样数位 8, 16 input: function (data) { this.buffer.push(new Float32Array(data)) this.size += data.length }, compress: function () { // 合并压缩 // 合并 let data = new Float32Array(this.size) let offset = 0 for (let i = 0; i < this.buffer.length; i++) { data.set(this.buffer[i], offset) offset += this.buffer[i].length } // 压缩 let compression = parseInt(this.inputSampleRate / this.outputSampleRate) let length = data.length / compression let result = new Float32Array(length) let index = 0; let j = 0 while (index < length) { result[index] = data[j] j += compression index++ } return result }, encodeWAV: function () { let sampleRate = Math.min(this.inputSampleRate, this.outputSampleRate) let sampleBits = Math.min(this.inputSampleBits, this.oututSampleBits) let bytes = this.compress() let dataLength = bytes.length * (sampleBits / 8) let buffer = new ArrayBuffer(44 + dataLength) let data = new DataView(buffer) let channelCount = 1// 单声道 let offset = 0 let writeString = function (str) { for (let i = 0; i < str.length; i++) { data.setUint8(offset + i, str.charCodeAt(i)) } } // 资源交换文件标识符 writeString('RIFF'); offset += 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); offset += 4 // WAV文件标志 writeString('WAVE'); offset += 4 // 波形格式标志 writeString('fmt '); offset += 4 // 过滤字节,一般为 0x10 = 16 data.setUint32(offset, 16, true); offset += 4 // 格式类别 (PCM形式采样数据) data.s
                
提示：
                    本文由神整理自网络，如有侵权请联系本站删除！
                    

                    本站声明： 

                    1、本站所有资源均来源于互联网，不保证100%完整、不提供任何技术支持； 

                    2、本站所发布的文章以及附件仅限用于学习和研究目的;不得将用于商业或者非法用途；否则由此产生的法律后果，本站概不负责！
                
                

                

                                            
上一篇：three.js实现3d全景看房示例_javascript技巧_
                                                                
下一篇：JS项目中对本地存储进行二次的封装的实现_javascript技巧_