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Normalize Audio

Even out a quiet or inconsistent recording — peak-normalize or apply a fixed gain.

Select an audio file

Even out a quiet or inconsistent recording — peak-normalize to −1 dBFS, or apply a fixed gain. Runs in your browser.

点击选择，或将文件拖到此处

如何 Normalize Audio

  1. 1

    Add your audio

    Drop in the recording you want to even out.

  2. 2

    Choose peak or gain

    Peak-normalize to −1 dBFS, or apply a fixed gain in dB.

  3. 3

    Normalize and download

    Click Normalize audio and save the result.

Related PDF tools

Trim AudionewCut an audio file to just the part you want, with a visual waveform.Merge AudionewJoin multiple audio files into one, in the order you set, with an optional gap.Audio ConverternewConvert MP3, WAV, M4A, AAC, FLAC or OGG to MP3 or WAV — entirely in your browser.WAV to MP3newCompress a WAV to MP3 at the bitrate you choose, in your browser.

Normalize Audio — 常见问题

What does peak normalize do?+

It finds the single loudest sample and scales the whole file so that peak sits at −1 dBFS — as loud as possible without clipping.

Peak normalize vs. adjust gain?+

Peak normalize is automatic and based on the file's own level. Adjust gain applies a fixed dB change you choose, up or down.

Is this loudness (LUFS) normalization?+

No — it's peak-based, which is simpler and safe. True LUFS loudness matching needs a heavier analysis pass.

Is my file uploaded?+

No. Analysis and processing run entirely in your browser.

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。