Audio spectrogram Web Component.
npm install x-spectrogramAudio spectrogram Web Component.
npm i x-spectrogram | pnpm add x-spectrogram | yarn add x-spectrogram |
Try it live `` customElements.define('x-spectrogram', SpectrogramElement)#
web
#
example/web.ts view sourcets
import { fetchAudioBuffer } from 'webaudio-tools'
import { SpectrogramElement } from 'x-spectrogram/dist/esm'
document.body.innerHTML =
const ctx = new AudioContext({ sampleRate: 44100, latencyHint: 'playback' })
const analyser = ctx.createAnalyser()
analyser.fftSize = 4096
analyser.smoothingTimeConstant = 0
analyser.maxDecibels = 0
analyser.minDecibels = -100
// @ts-ignore
const url = new URL('alpha_molecule.ogg', import.meta.url).toString()
fetchAudioBuffer(ctx, url).then(audioBuffer => {
const source = ctx.createBufferSource()
source.buffer = audioBuffer
source.loop = true
source.connect(ctx.destination)
source.start(0, 30)
source.connect(analyser)
;(document.querySelector('x-spectrogram') as SpectrogramElement).analyser =
analyser
})
window.onclick = () => ctx.state !== 'running' ? ctx.resume() : ctx.suspend()
if (ctx.state !== 'running')
document.body.appendChild(new Text('click to start/stop'))
``
Context<SpectrogramElement & JsxContext<SpectrogramElement> & Omit<{ <T>(ctor) => <T>(ctx) => #
src/x-spectrogram.ts#L29 SpectrogramElement
#
src/work/stagas/sigl/dist/types/sigl.d.ts#L25 $ CleanClass<T>
Wrapper<T>
},
"transition">> context ContextClass<SpectrogramElement & JsxContext<SpectrogramElement> & Omit<{
<T>(ctor) =>
<T>(ctx) =>
},
"transition">> stop()
stop() =>
onmounted EventHandler<SpectrogramElement, CustomEvent<any>>
onunmounted EventHandler<SpectrogramElement, CustomEvent<any>>
created(ctx) Context<SpectrogramElement & JsxContext<SpectrogramElement> & Omit<{ <T>(ctor) => #
ctx CleanClass<T>
<T>(ctx) =>
},
"transition">> created(ctx) =>
mounted($) Context<SpectrogramElement & JsxContext<SpectrogramElement> & Omit<{ <T>(ctor) => #
$ CleanClass<T>
<T>(ctx) =>
},
"transition">> mounted($) =>
on(name)
on<K>(name) =>
toJSON()
toJSON() =>
- sigl by stagas – Web framework
- webaudio-tools by stagas – Useful tools for WebAudio.
All contributions are welcome!