音频音量调节器
调整音频文件的音量大小
上传音频文件
支持 MP3、WAV、OGG、FLAC、AAC、M4A
使用方法
上传您的文件
拖放文件或点击浏览。您的文件留在浏览器中。
调整设置
配置选项以获得您所需的精确结果。
下载结果
即时处理并下载您的文件——无需等待，无需上传至服务器。
为什么使用此工具
100% 免费
没有隐藏费用，没有付费等级——所有功能完全免费。
无需安装
完全在浏览器中运行。无需下载或安装任何软件。
隐私且安全
您的数据永远不会离开您的设备。不会上传至任何服务器。
支持移动设备
完全响应式设计——在手机、平板或桌面电脑上均可使用。
您的文件保持私密
此工具完全在您的浏览器中处理文件。不会上传至任何服务器——您的数据永远不会离开您的设备。
- 无服务器上传——100% 客户端处理
- 不存储数据——关闭标签页时文件即被丢弃
- 无需账号——无需注册即可立即使用
Understanding Audio Volume and Gain
Key Takeaways
- Volume adjustment multiplies sample amplitude by a gain factor — 1.0 is original, 0.5 is half, 2.0 is double.
- Digital audio clips (distorts) when amplitude exceeds 0 dBFS, so boosting volume requires care.
- Loudness normalization ensures consistent volume across multiple files for a professional experience.
Adjusting audio volume is a fundamental editing operation. Whether you need to boost a quiet recording, reduce a loud track, or normalize volume across files, understanding how digital gain works helps you achieve professional results. This tool processes volume changes entirely in your browser using the Web Audio API.
+10 dB
≈ 2× perceived loudness
Common Use Cases
Normalizing Quiet Recordings
Boost volume of recordings made with the microphone too far away or input gain set too low, rescuing otherwise unusable audio.
Podcast Volume Consistency
Ensure all segments play at consistent volume, especially when combining tracks from different recording setups.
Background Music Mixing
Lower background music to sit beneath narration at the right level, typically 15–20 dB below the voice track.
Preparing Audio for Video
Adjust audio levels to broadcast standards before combining with video. Streaming platforms have specific loudness requirements.
Volume Adjustment Tips
Avoid boosting beyond 150% — excessive gain amplifies noise and can introduce clipping distortion.
If a recording is extremely quiet, re-recording is better than heavy digital boost, which raises the noise floor.
Use preview to listen before exporting, and watch for clipping indicators.
For consistent volume across files, normalize to the same peak (-1 dBFS) or loudness target (-16 LUFS).
All volume processing is performed entirely in your browser. No audio data is uploaded to any server.