R. Leroi rleroi

Vector Audio Format — Concept Notes

Core Idea

An audio file format that is to PCM what SVG is to bitmap: resolution-independent, mathematically defined, and inherently manipulable. Instead of storing discrete amplitude samples, store mathematical curve definitions (Bézier/B-spline control points) that describe the sound.

Key Insight

Raw PCM waveforms are too complex for efficient curve fitting. But if you first decompose audio via sinusoidal modeling (SMS — Serra & Smith, 1990), the resulting parameter trajectories (frequency, amplitude over time) are smooth, slowly-varying curves — exactly what Bézier curves represent efficiently.


	addEventListener("fetch", (event) => {
	event.respondWith(
	handleRequest(event.request).catch(
	(err) => new Response(err.stack, { status: 500 })
	)
	);
	});

	const paused = false;

	<!DOCTYPE html>
	<html>
	<head>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/awesome-qr/2.1.5-rc.0/awesome-qr.min.js" integrity="sha512-UpkZj9Z6XEPriWyGB7t7Hf4la5r6kLnxVzmjSpxqn9MFScD2m+m9QZyhKLOJW6lYTgGQB9UPEciaLizU0yZUeA==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
	<script>
	async function generate(input) {
	let file = input?.files?.[0];
	let logo = null;
	if (file) {
	logo = window.URL.createObjectURL(file);

	/*
	* Replaces all inline `require('path').default` with `import Name from 'path'`
	* Adding them as imports to the top of the file.
	* Usage: node RequireToImport.js dir [dry]
	*/

	const glob = require("glob")
	const path = require('path');
	const fs = require('fs');

	import debounce from 'lodash/debounce';
	import Vue from 'vue';

	// mobile longPress. usage: <div v-longpress="callbackFunction" /> you can specify an optional delay with v-longpress:1000="callbackFunction" (default is 300ms).
	Vue.directive('longpress', {
	bind(el, binding) {
	let longPressTimeout = null;
	el.addEventListener('touchstart', (e) => {
	longPressTimeout = window.setTimeout(/callback/ binding.value, /delay/ binding.arg \|\| 300);
	});

	#####################################
	# Some useful aliases for sharing. #
	# Some by me, some found on the web #
	#####################################


	# Laravel Artisan
	alias starthorizon='./artisan horizon'
	alias stophorizon="kill \$(ps aux \| grep 'php ./artisan horizon' \| grep -v grep \| head -n1 \| awk '{print \$2}') 2> /dev/null && echo 'Horizon stopped'"
	alias horizon='stophorizon; starthorizon;'

R. Leroi rleroi

Vector Audio Format — Concept Notes

Core Idea

Key Insight

Architecture: Three Track Types