Audio compressor

Apply dynamic-range compression to a short clip and save the processed audio as WAV.

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Audio compressor processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

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Choose audio file

Threshold (dB)

Ratio, attack and release

Ratio

Attack (seconds)

Release (seconds)

Processed audio

Preparing example…

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Updated 2026-09-19

Using the audio compressor

Compression reduces gain when audio exceeds the chosen threshold. Ratio controls how strongly those peaks are reduced. This uses the browser’s offline dynamics compressor with a hard knee; it changes dynamics, not file-size compression.

A worked example

A 4:1 ratio means a 4 dB increase above the threshold targets a 1 dB increase at the output, after attack and release behavior.

Next: Audio network calculator

Before you use the result

Browser-decodable mono or stereo audio only, within the stated upload limits. Output is 16-bit PCM WAV. Speed changes may introduce resampling artifacts; processing does not restore clipped or missing information.

Cite this page

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ToolOctopus. “Audio compressor.” Updated 2026-09-19. https://tooloctopus.com/audio-compressor.

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