Oscilloscope, spectrogram, spectrum, waveform audio visualizers.
npm install x-visualizerOscilloscope, spectrogram, spectrum, waveform audio visualizers.
npm i x-visualizer | pnpm add x-visualizer | yarn add x-visualizer |
`` import { VisualizerElement } from 'x-visualizer' const ctx = new AudioContext({ sampleRate: 44100, latencyHint: 'playback' }) interface AppElement extends $.Element @$.element()#
web
#
example/web.tsx view sourcetsx
/* @jsxImportSource sigl /
import $ from 'sigl'
class AppElement extends HTMLElement {
input?: AudioNode
Visualizer = $.element(VisualizerElement)
visualizer?: VisualizerElement
mounted($: AppElement['$']) {
$.render(({ Visualizer, input }) => (
console.log('cycle')
$.ref.visualizer?.current?.cycle()
})}
>
input={input}
kind="oscilloscope"
/>
const App = $.element(AppElement)
const fetchAudioBuffer = async (audio: AudioContext, url: string) => {
const res = await fetch(url)
const arrayBuffer = await res.arrayBuffer()
const audioBuffer = await audio.decodeAudioData(arrayBuffer)
return audioBuffer
}
let playing = false
let source: AudioBufferSourceNode
const toggle = async () => {
window.onclick = null
if (playing) {
ctx.suspend()
playing = false
console.log('stopped')
return
}
ctx.resume()
playing = true
if (source) return
const audioBuffer = await fetchAudioBuffer(
ctx,
'./example/alpha_molecule.ogg'
)
source = ctx.createBufferSource()
source.buffer = audioBuffer
source.loop = true
source.connect(ctx.destination)
source.start(0, 33)
// for (let i = 0; i < 1; i++) {
$.render(
console.log('rendered')
// }
// const osc = ctx.createOscillator()
// osc.frequency.value = 40
// osc.type = 'sine'
// osc.start()
// osc.connect(analyser)
// const noise = ctx.createScriptProcessor(512, 1, 1)
// noise.onaudioprocess = e => {
// const output = e.outputBuffer.getChannelData(0)
// for (let i = 0; i < output.length; i++)
// output[i] = Math.random() * 2 - 1
// }
// noise.connect(analyser)
// spectrogram.current!.analyser = analyser
console.log('playing')
// setTimeout(() => {
// analyser.fftSize = 16384 * 2
// waveform.current!.analyser = null
// waveform.current!.analyser = analyser
// }, 1000)
}
// window.onclick = toggle
toggle()
``
Context<VisualizerElement & JsxContext<VisualizerElement> & Omit<{ <T>(ctor) => <T>(ctx) => #
src/x-visualizer.tsx#L16 VisualizerElement
#
src/work/stagas/sigl/dist/types/sigl.d.ts#L25 $ CleanClass<T>
Wrapper<T>
},
"transition">> context ContextClass<VisualizerElement & JsxContext<VisualizerElement> & Omit<{
<T>(ctor) =>
<T>(ctx) =>
},
"transition">> onmounted EventHandler<VisualizerElement, CustomEvent<any>>
onunmounted EventHandler<VisualizerElement, CustomEvent<any>>
visualizer OscilloscopeElement | SpectrogramElement | SpectrumElement | WaveformElement
visualizers = ... created(ctx) Context<VisualizerElement & JsxContext<VisualizerElement> & Omit<{ <T>(ctor) => #
ctx CleanClass<T>
<T>(ctx) =>
},
"transition">> created(ctx) =>
mounted($) Context<VisualizerElement & JsxContext<VisualizerElement> & Omit<{ <T>(ctor) => #
$ CleanClass<T>
<T>(ctx) =>
},
"transition">> mounted($) =>
on(name)
on<K>(name) =>
toJSON()
toJSON() =>
- everyday-utils by stagas – Everyday utilities
- sigl by stagas – Web framework
- x-oscilloscope by stagas – Audio oscilloscope visualizer Web Component
- x-spectrogram by stagas – Audio spectrogram Web Component.
- x-spectrum by stagas – Audio spectrum analyser Web Component
- x-waveform by stagas – Audio waveform visualizer Web Component
All contributions are welcome!