guest271314

How to record multiple applications and microphone into one audio file on Linux

Sinks are for output, sources are for input. To stream source to sink a loopback must be created. More shall you find there.

Our output sink will be named recording.

pacmd load-module module-null-sink sink_name=recording sink_properties=device.description=recording

If you're OK in having a node-esm executable, please consider this solution.

#!/usr/bin/env sh
# the /usr/local/bin/node-esm executable
input_file=$1
shift
exec node --input-type=module - $@ &lt;$input_file

See also:

Service	Type	Storage	Limitations
Amazon DynamoDB	⚠️ Proprietary NoSQL	25 GB	⚠️ Payment method required
Amazon RDS	⚠️ Proprietary RDBMS		⚠️ Only free for 1 year
Azure SQL Database	MS SQL Server		⚠️ Only free for 1 year
👉 Clever Cloud	PostgreSQL, MySQL, MongoDB, Redis	256 MB (PostgreSQL)	Max 5 connections (PostgreSQL)

You take a stream/buffer of binary data. The start of your data is a "Page", which has a header followed by data.

You need to read the following data from the header (see https://xiph.org/ogg/doc/framing.html for more detail)

capture_pattern - bytes 0 to 3, must read OggS
stream_structure_version - byte 4, must be 0
header_type_flag - byte 5, a bitflag that tells you metadata about the page (is it a new packet? is a packet continued here? is it the first/last page of the stream?)
absolute granule position - bytes 6 to 13, not needed unless you want seeking
stream serial number - bytes 14 to 17, a serial number given to each stream contained in the Ogg file. This is important for playing Ogg files that contain other streams, such as video or cover art. You need to identify and only bother parsing the Opus stream.

	var ARRAY_LENGTH = 16;
	var MIN_HEX_LENGTH = 2;

	class UUID {

	static createUUID() {
	const array = new Uint8Array(ARRAY_LENGTH);
	window.crypto.getRandomValues(array);

	let uuid = '';

	if (!defined('CURL_HTTP_VERSION_3')) {
	define('CURL_HTTP_VERSION_3', 30);
	}

	$ch = curl_init("https://cloudflare-quic.com/");
	curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_3);
	curl_exec($ch);

	/*
	MIT License

	Copyright (c) 2020 Egor Nepomnyaschih

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is

	#!/bin/bash
	set -eo pipefail

	# Script to build a statically linked version of opus-tools
	#
	# Release tarballs:
	# http://downloads.xiph.org/releases/opus/
	# http://downloads.xiph.org/releases/ogg/
	# http://downloads.xiph.org/releases/flac/
	#

	/* ##### float32encoding.js #####
	MIT License

	- Forked 'toFloat' from https://gist.github.com/laerciobernardo/498f7ba1c269208799498ea8805d8c30
	- Forked 'toHex' from stackoverflow answer https://stackoverflow.com/a/47187116/10522253
	- Modifyed by: Jozo132 (https://github.com/Jozo132)

	Permission is hereby granted, free of charge, to any person obtaining
	a copy of this software and associated documentation files (the
	"Software"), to deal in the Software without restriction, including

	if ('serviceWorker' in navigator) {
	window.addEventListener('load', async function() {
	const registration = await navigator.serviceWorker.register('/service-worker.js');
	if (registration.waiting && registration.active) {
	// The page has been loaded when there's already a waiting and active SW.
	// This would happen if skipWaiting isn't being called, and there are
	// still old tabs open.
	console.log('Please close all tabs to get updates.');
	} else {
	// updatefound is also fired for the very first install. ¯\_(ツ)_/¯