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YouTube 추가 볼륨 슬라이더

유튜브에 추가 볼륨 증폭 슬라이더를 넣어 최대 16배까지 볼륨을 키울 수 있습니다.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

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回复【脚本】获取最新教程和防失联地址

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

🚀 安装遇到问题?关注公众号获取帮助

公众号二维码

扫码关注【爱吃馍】

回复【脚本】获取最新教程和防失联地址

// ==UserScript==
// @name         YouTube 추가 볼륨 슬라이더
// @namespace    youtube-extra-volume
// @match        https://www.youtube.com/*
// @version      0.1
// @description  유튜브에 추가 볼륨 증폭 슬라이더를 넣어 최대 16배까지 볼륨을 키울 수 있습니다.
// @icon         https://www.google.com/s2/favicons?sz=256&domain=youtube.com
// @author       you
// @grant        none
// @license      MIT
// ==/UserScript==

(function () {
    'use strict';

    const MAX_VOLUME = 16;
    let gainValue = getSavedVolume() || 1;
    const ORIGINAL_VOLUME = 1;
    let hideTimeout;

    // 볼륨 증폭 적용
    function boostVolume(video, boost) {
        let audioContext = video.audioContext;
        let gainNode = video.gainNode;

        if (!audioContext) {
            audioContext = new (window.AudioContext || window.webkitAudioContext)();
            let source = audioContext.createMediaElementSource(video);
            gainNode = audioContext.createGain();
            source.connect(gainNode);
            gainNode.connect(audioContext.destination);
            video.audioContext = audioContext;
            video.gainNode = gainNode;

            video.addEventListener('play', () => audioContext.resume(), { once: true });
        }

        gainNode.gain.value = boost ? gainValue : ORIGINAL_VOLUME;
    }

    // 비디오 전체에 증폭 적용
    function applyVolumeBoost() {
        document.querySelectorAll('video').forEach(video => boostVolume(video, true));
        saveVolume(gainValue);
    }

    function removeVolumeBoost() {
        document.querySelectorAll('video').forEach(video => boostVolume(video, false));
    }

    // 슬라이더 UI 추가
    function addVolumeSlider() {
        const volumeArea = document.querySelector('.ytp-volume-area'); // ✅ 기존 볼륨 컨트롤바를 찾습니다.
        if (!volumeArea) {
            setTimeout(addVolumeSlider, 1000);
            return;
        }

        if (document.querySelector('#ytVolumeBoostSlider')) return;

        const container = document.createElement('div');
        container.style.display = 'flex';
        container.style.alignItems = 'center';
        container.style.marginLeft = '10px';
        container.style.opacity = '0';
        container.style.transition = 'opacity 0.3s';

        const slider = document.createElement('input');
        slider.id = 'ytVolumeBoostSlider';
        slider.type = 'range';
        slider.min = 1;
        slider.max = MAX_VOLUME;
        slider.value = gainValue;
        slider.step = 0.1;
        slider.style.width = '120px';
        slider.style.cursor = 'pointer';

        const label = document.createElement('span');
        label.id = 'ytVolumeBoostLabel';
        label.textContent = `🔊 ${(gainValue).toFixed(1)}x`;
        label.style.color = '#fff';
        label.style.fontSize = '12px';
        label.style.marginLeft = '5px';

        slider.oninput = () => {
            gainValue = parseFloat(slider.value);
            label.textContent = `🔊 ${gainValue.toFixed(1)}x`;
            applyVolumeBoost();
        };

        container.appendChild(slider);
        container.appendChild(label);

        // ✅ 기존 볼륨 컨트롤러 바로 옆에 삽입합니다.
        volumeArea.after(container);

        // 마우스 움직임 시 슬라이더 보이기
        function showSlider() {
            container.style.opacity = '1';
            resetHideTimeout();
        }

        function hideSlider() {
            container.style.opacity = '0';
        }

        function resetHideTimeout() {
            clearTimeout(hideTimeout);
            hideTimeout = setTimeout(hideSlider, 3000);
        }

        document.addEventListener('mousemove', showSlider);
        document.addEventListener('keydown', showSlider);
    }

    // 볼륨 저장 (localStorage)
    function saveVolume(value) {
        localStorage.setItem('yt_volume_boost', value);
    }

    function getSavedVolume() {
        const v = localStorage.getItem('yt_volume_boost');
        return v ? parseFloat(v) : null;
    }

    // 비디오 로드 및 UI 준비
    function init() {
        function waitForVideo() {
            const videos = document.querySelectorAll('video');
            if (videos.length > 0) {
                applyVolumeBoost();
                addVolumeSlider();
            } else {
                setTimeout(waitForVideo, 200);
            }
        }

        waitForVideo();

        // 플레이어 교체 감지
        const observer = new MutationObserver(() => waitForVideo());
        observer.observe(document.body, { childList: true, subtree: true });
    }

    init();
})();