How to Remove Background Noise from Audio

Published: 2025-02-21

How to Remove Background Noise from Audio

A noise reducer can clean up hiss, hum, fan noise, and room ambience automatically.

Broadband hiss: From microphone self-noise.
Hum: From power lines.
Ambient noise: Air conditioning and traffic.

Most tools use spectral subtraction. The algorithm builds a noise profile then subtracts it.

Open our free noise reducer tool.
Upload your audio file.
Download your cleaned audio.

Q&A

Steady-state noise only.

Use a moderate setting.

Electrical interference.