#069 · Browser Audio Tool

Audio Gain Adjuster

Apply an exact gain change in decibels, with an optional safety limiter, and export a new WAV.

Choose audio to adjust

Precise gain control
No audio selected
Choose an audio file to begin.
Audio is processed locally in your browser and is not uploaded.
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How to use Audio Gain Adjuster

  1. Choose a compatible audio file.
  2. Set the available options for your task.
  3. Select Apply gain and wait for the local operation to finish.
  4. Review the measurements or compare the preview, then download the audio or report.

What this audio tool does

Apply an exact gain change in decibels, with an optional safety limiter, and export a new WAV.

A decibel value is converted to a linear multiplier and applied sample by sample. Optional soft limiting catches peaks above the -0.3 dBFS ceiling.

Large boosts raise background noise along with the wanted signal. Without clipping protection, samples above 0 dBFS are clipped by WAV encoding.

Supported formats and limits

Audio decoding follows the formats supported by your browser. WAV export uses 16-bit PCM. No file is uploaded.

InputBrowser-decodable audio
OutputPCM WAV or JSON analysis report
ProcessingLocal in this browser

Example and practical tips

For example, use Audio Gain Adjuster on a short copy first, listen or inspect the result, and only then process a long recording.

  • Close other audio-heavy tabs for smoother processing.
  • Keep an untouched copy of the source.
  • Large boosts raise background noise along with the wanted signal. Without clipping protection, samples above 0 dBFS are clipped by WAV encoding.

Frequently asked questions

Does the audio gain adjuster upload my audio?

No. Audio processing and analysis happen in your browser, so the selected file is not sent to a server.

Which browsers work with this Audio Gain Adjuster?

A current browser with Web Audio API support works best. Input codec support still depends on the browser.

Can I preview the result before downloading?

Yes. When the tool creates audio, the original and result players let you compare them before saving.

Why is the exported file a WAV?

PCM WAV is widely supported and can be encoded reliably in the browser without an external server or codec.

Will this tool reduce audio quality?

Large boosts raise background noise along with the wanted signal. Without clipping protection, samples above 0 dBFS are clipped by WAV encoding.

Processing details

ToolAudio Gain Adjuster
CategoryVolume & Loudness
PrivacyLocal browser processing

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