// ==UserScript==// @name         YouTube Default Audio Track// @namespace    bp-yt-audio-track-default// @version      1.4// @description  Makes it possible to select the desired Audio Track played by default.// @author       BuIlDaLiBlE// @match        https://www.youtube.com/*// @match        https://www.youtube-nocookie.com/*// @icon         https://www.youtube.com/favicon.ico// @grant        none// @run-at       document-end// @license      MIT// ==/UserScript=="use strict";const DESIRED_AUDIO_TRACK = "original"; // The desired audio track name (can be partial)window.addEventListener("yt-navigate-finish", main, true);const observer = new MutationObserver((mutations, shortsReady = false, videoPlayerReady = false) =>{outer: for(const mutation of mutations){for(const node of mutation.addedNodes){if(!shortsReady){shortsReady = node.tagName === "YTD-SHORTS";}if(!videoPlayerReady){videoPlayerReady = typeof node.className === "string" && node.className.includes("html5-main-video");}if(shortsReady || videoPlayerReady){observer.disconnect();main();break outer;}}}});observer.observe(document.documentElement,{childList: true,subtree: true,});async function main(){let player = getPlayer();while(!player){player = getPlayer();await new Promise(resolve => setTimeout(resolve, 5));}forceAudioTrack(player);}function getPlayer(){let player;if(window.location.href.includes("youtube.com/shorts")){player = document.querySelector("#shorts-player");}else{player = document.querySelector("#movie_player");}return player;}function forceAudioTrack(player){try{const availableAudioTracks = player.getAvailableAudioTracks();const currentAudioTrack = player.getAudioTrack();let languageObject;if(availableAudioTracks === undefined || availableAudioTracks.length == 0){return;}for(let object in currentAudioTrack){if(currentAudioTrack[object].name){languageObject = object;break;}}if(!currentAudioTrack[languageObject].name.toLowerCase().includes(DESIRED_AUDIO_TRACK.toLowerCase())){for(const track of availableAudioTracks){if(track[languageObject].name.toLowerCase().includes(DESIRED_AUDIO_TRACK.toLowerCase())){player.setAudioTrack(track);break;}}}}catch(error){console.error("Error setting Audio Track:", error.message);}}