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staskobzar/vue-audio-visual: VueJS audio visualization components

Vue HTML5 audio visualization components

• Overview
• Get started
  • Install
  • Use plugin
  • Use component
  • Composable functions
• API details
  • Common props
  • Common events
  • AvLine props
  • AvBars props
  • AvCircle props
  • AvWaveform props
  • AvMedia props
• Issues
• License

Warning

Plugin current version is compatibale only with Vue v3. For Vue2 use plugin version 2.5.1. See install chapter for details.

An audio spectrum visualizer plugin for VueJS framework. It is built with HTML5 Web Audio API and compatible with all browsers that support HTML5 audio API. It provides several Vue components that allows to draw light and nice visualization for "audio" HTML elements.

Usage examples:

Component AvLine. Vue template name <av-line>

<av-line :line-width="2" line-color="lime" src="/static/music.mp3"></av-line>

This will create following element:

Component AvBars. Vue template name <av-bars>

<av-bars
  caps-color="#FFF"
  :bar-color="['#f00', '#ff0', '#0f0']"
  canv-fill-color="#000"
  :caps-height="2"
  src="/static/bach.mp3"
></av-bars>

This will create following element:

Component AvCircle. Vue template name <av-circle>

<av-circle
  :outline-width="0"
  :progress-width="5"
  :outline-meter-space="5"
  :playtime="true"
  playtime-font="18px Monaco"
  src="/static/bach.mp3"
></av-circle>

This will create following element:

Component AvWaveform. Vue template name <av-waveform>

<av-waveform src="/static/bar.mp3"></av-waveform>

This will create following waveform element:

Component will pre-load audio content and generate clickable waveform.

Component AvMedia. Vue component <AvMedia>

<AvMedia :media="mediaObject" type="vbar"></AvMedia>

This will create following media element:

There are more media types. See details below.

Install using npm

npm install --save vue-audio-visual

for Vue 2 install version 2.5.1

npm i -S vue-audio-visual@2.5.1

Install plugin in main.js:

import { createApp } from "vue";
import App from "./App.vue";
import { AVPlugin } from "vue-audio-visual";

const app = createApp(App);
app.use(AVPlugin);

app.mount("#app");

Then anywhere is your app you can use it like this:

<av-bars src="/static/bach.mp3" bar-color="#CCC"> </av-bars>

Single component can be imported and used

<script setup lang="ts">
import { AVWaveform } from 'vue-audio-visual'
</script>

<template>
  <AVWaveform src="http://foo.com/music.ogg" />
</template>

Plugin provides composable "use" functions for each plugin component. Actually, each component uses composable function inside. See, for example, line component.

Composable functions use audio and canvas element refs. It is handy when you need full access to audio or canvas elements. In the same time it is easy to use:

<script setup lang="ts">
import { ref } from 'vue'
import { useAVBars } from 'vue-audio-visual'

const player = ref(null)
const canvas = ref(null)
const mySource = "./symphony.mp3"

// composable function useAVBars
useAVBars(player, canvas, { src: mySource, canvHeight: 40, canvWidth: 200, barColor: 'lime' })
</script>

<template>
  <div>
    <audio ref="player" :src="mySource" controls />
    <canvas ref="canvas" />
  </div>
</template>

There are several components that comes with plugin. Here is the list of available plugins:

There are props that are common for all components and special props for each component. All props for components' names follow vue specs when using wiht composable functions. Meaning when prop's name is "foo-bar" then in composable function parameter it is expected to be "fooBar".

Composable function:

function useAVLine<T extends object>(
  player: Ref<HTMLAudioElement | null>,
  canvas: Ref<HTMLCanvasElement | null>,
  props: T,
);

Composable function

function useAVBars<T extends object>(
  player: Ref<HTMLAudioElement | null>,
  canvas: Ref<HTMLCanvasElement | null>,
  props: T,
);

Composable function

function useAVCircle<T extends object>(
  player: Ref<HTMLAudioElement | null>,
  canvas: Ref<HTMLCanvasElement | null>,
  props: T,
);

Composable function is using useFetch from @vueuse/core package. useAVWaveform last argument is options for "createFetch" function from "useFetch" module.

export function useAVWaveform<T extends object>(
  player: Ref<HTMLAudioElement | null>,
  canvas: Ref<HTMLCanvasElement | null>,
  props: T,
  fetchOpts: CreateFetchOptions = {},
);

Component expects MediaStream object. You can get it directly from navigator.mediaDevices or from @vueuse/core library function useUserMedia. Live example can be found in App.vue.

<script setup lang="ts">
import { AVMedia } from 'vue-audio-visual'
import { useUserMedia } from '@vueuse/core'
...
const { stream } = useUserMedia()
...
</script>

<template>
...
<AVMedia :media="stream" type="circle" />
...
</template>

• circle: 80
• frequ: 300
• vbar: 50
• wform: 200

• circle: 80
• frequ: 80
• vbar: 20
• wform: 40

Composable function:

function useAVMedia<T extends object>(
  canvas: Ref<HTMLCanvasElement | null>,
  props: T,
);

MIT Copyright (c) 2018-present, Stas Kobzar

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