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vudio.js

一个简单的音频数据可视化模块


概述:

  • 支持诸多样式调整
  • 动画效果基于Canvas和requestAnimationFrame,丝般顺滑
  • 仅供娱乐,开心就好

使用方法

模块式引入

# 使用npm安装此模块
npm i vudio.js --save
# 或者使用yarn安装此模块
yarn add vudio.js
import Vudio from 'vudio.js'

标签式引入

<script src="/path/to/vudio.js"></script>

实例化Vudio

var vudio = new Vudio(HTMLAudioElement | MediaStream, HTMLCanvasElement, [option]);
vudio.dance();

第一个参数用于指定音频源,可以是一个Audio标签,或者一个Audio对象,也可以是通过navigator.mediaDevices.getUserMedia获取到的音频MediaStream对象

第二个参数用于指定显示可视化内容的Canvas,

第三个参数用于指定显示效果的个性化配置

示例

在你的HTML文件中放入canvas和audio标签

<canvas width="256px" height="100px" id="canvas"></canvas>
<audio src="./path/to/audio.mp3" controls id="audio"></audio>

引入Vudio.js

<script src="path/to/vudio.js"></script>

注意,因为浏览器的同源策略,所以跨域情况下无法使用本模块(可在服务端进行控制)

开始搅基

var audioObj = document.querySelector('#audio');
var canvasObj = document.querySelector('#canvas');
var vudio = new Vudio(audioObj, canvasObj, {
    effect : 'waveform', // 当前只有'waveform'这一个效果,哈哈哈
    accuracy : 128, // 精度,实际表现为波形柱的个数,范围16-16348,必须为2的N次方
    width : 256, // canvas宽度,会覆盖canvas标签中定义的宽度
    height : 100, // canvas高度,会覆盖canvas标签中定义的高度
    waveform : {
        maxHeight : 80, // 最大波形高度
        minHeight : 1, // 最小波形高度
        spacing: 1, // 波形间隔
        color : '#f00', // 波形颜色,可以传入数组以生成渐变色
        shadowBlur : 0, // 阴影模糊半径
        shadowColor : '#f00', // 阴影颜色
        fadeSide : true, // 渐隐两端
        horizontalAlign : 'center', // 水平对齐方式,left/center/right
        verticalAlign: 'middle' // 垂直对齐方式 top/middle/bottom
    }
});

// 调用dance方法开始得瑟吧
vudio.dance();

// 也可随时停止得瑟
vudio.pause();

// 中途换个姿势得瑟也是可以的
vudio.setOption({
    waveform : {
        color : '#06f',
        verticalAlign: 'bottom'
    }
});

在线示例: http://margox.github.io/vudio.js/

vudio.js's People

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vudio.js's Issues

问题

精度上去后,很卡,跟看幻灯片一样

能否做成圆形的音乐频谱

我想在自己的博客上放一个带音乐频谱的歌单,但网上一直找不到效果比较好的。
你做的音乐频谱挺漂亮的,不过我觉得能够更上一层楼,能否试试看把它做成圆形的,
中间显示名字,和播放时间,背景可以插入图片。
类似这样的效果?
(https://www.bilibili.com/video/av20272434)

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