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Fade In / Fade Out Audio

Add a smooth fade-in and fade-out to an audio file — in your browser.

Select an audio file

Add a smooth fade-in and fade-out to an audio file — in your browser.

点击选择，或将文件拖到此处

如何 Fade In / Fade Out Audio

  1. 1

    Add your audio

    Drop in the file.

  2. 2

    Set the fades

    Choose how many seconds to fade in and fade out.

  3. 3

    Apply and download

    Click Apply fade and save the result.

Related PDF tools

Trim AudionewCut an audio file to just the part you want, with a visual waveform.Vocal RemovernewRemove centre-panned vocals from a song for a karaoke track — in your browser.Change Audio SpeednewSpeed up or slow down an audio file, 0.5× to 2× — in your browser.Merge AudionewJoin multiple audio files into one, in the order you set, with an optional gap.

Fade In / Fade Out Audio — 常见问题

Is my file uploaded?+

No. The fade is applied to the decoded samples in your browser.

How long can the fades be?+

Up to 15 seconds each. They can overlap on a short clip.

What format do I get?+

MP3 or WAV, your choice.

Is it a linear fade?+

Yes — a straight-line volume ramp, which sounds natural for most material.

你们会把我的文件上传到服务器吗？+

不会——这里的每个工具都完全在你的设备上处理文件，不会向服务器上传任何内容。唯一的例外是 AI 工具，它们会把提取的文本（而非文件本身）发送给 Claude 来完成工作。

有文件大小限制吗？+

我们没有人为设置限制，但由于处理过程在你的浏览器中进行，非常大的文件（超过 500MB 或 1000 页）会受到你设备内存的限制，而非我们的限制。