Forces all YouTube videos to play in their original language audio instead of the AI dubbed language. Works in both normal videos and shorts. Can be manually overridden per-video.
Per
// ==UserScript==
// @name YouTube Prevent Auto-Dub
// @name:zh-TW YouTube 防止自動配音
// @name:zh-CN YouTube 防止自动配音
// @name:ja YouTube 自動吹き替え防止
// @icon https://www.google.com/s2/favicons?sz=64&domain=youtube.com
// @author ElectroKnight22
// @namespace electroknight22_prevent_auto_dub_namespace
// @version 0.0.1
// @match *://www.youtube.com/*
// @exclude *://www.youtube.com/live_chat*
// @run-at document-start
// @license MIT
// @description Forces all YouTube videos to play in their original language audio instead of the AI dubbed language. Works in both normal videos and shorts. Can be manually overridden per-video.
// @description:zh-TW 強制所有 YouTube 影片以原始語言音訊播放，而不是 AI 配音的語言。適用於一般影片和 Shorts。可針對單一影片手動關閉。
// @description:zh-CN 强制所有 YouTube 视频以原始语言音频播放，而不是 AI 配音的语言。适用于一般视频和 Shorts。可针对单个视频手动关闭。
// @description:ja すべてのYouTube動画をAI吹き替えではなく、元の言語の音声で強制的に再生します。通常の動画とショート動画の両方で機能します。動画ごとに手動で無効にすることもできます。
// ==/UserScript==
(function () {
'use strict';
function main(event) {
try {
const player = event.target.player_;
if (player.getAvailableAudioTracks().length === 0) return;
const playerResponse = player.getPlayerResponse();
const originalAudioIndex = playerResponse.captions.playerCaptionsTracklistRenderer.defaultAudioTrackIndex;
const originalAudioId = playerResponse.captions.playerCaptionsTracklistRenderer.audioTracks[originalAudioIndex].audioTrackId;
const currentAudioTrack = player.getAudioTrack();
if (currentAudioTrack.Vp.id === originalAudioId) return;
const availableAudioTracks = player.getAvailableAudioTracks();
const originalAudioTrack = availableAudioTracks.find((audioTrack) => audioTrack.Vp.id === originalAudioId);
player.setAudioTrack(originalAudioTrack);
} catch (error) {
console.error('Failed to prevent YouTube auto-dubbing.', error);
}
}
window.addEventListener('yt-player-updated', main, true);
})();