Remove Background Noise from Audio — Free Online Tool

Hiss, hum, room tone, HVAC, crowd noise — upload your audio and Engineer Guy's AI strips out the background noise and hands you back a clean, professional-sounding file.

No credit card · No plugins · Works in your browser

🔇

Kills Hiss & Hum

Removes broadband noise, electrical hum (50Hz/60Hz), microphone hiss, and tape hiss without dulling the audio.

🏠

Room Tone & HVAC Removal

Recorded in a noisy room? The AI identifies and removes steady-state background noise like air conditioning and traffic.

🎙️

Voice Recording Cleanup

Clean up podcast recordings, voice memos, interviews, and vocal takes — makes cheap mics sound like proper studio recordings.

🆓

Free — No Watermarks

Your first noise removal is completely free. Download a clean WAV with no watermarks or quality restrictions.

Why Your Audio Has Background Noise (And How to Fix It)

Background noise in audio recordings comes from a few common sources: the room itself (reflections, HVAC, outside traffic), the microphone circuit (hiss, self-noise), electrical interference (60Hz hum from lighting or power cables), or the recording environment (keyboard clicks, mouse noise, neighbor's TV). Most of these are fixable with the right noise removal process — even after the fact.

Engineer Guy's AI analyzes a noise profile from your recording, identifies the constant and semi-constant noise components, and subtracts them cleanly from the audio. The result is a significantly cleaner file without the hollowness or artifacts that older noise reduction tools leave behind.

What Types of Noise Can Be Removed?

Steady-state noise (hiss, hum, HVAC, fans, air conditioning) — easiest to remove, excellent results.

Room tone and reverb — moderate removal possible; heavy reverb is harder to fully eliminate but can be significantly reduced.

Broadband background noise (outdoor ambient, crowd murmur) — AI separation works well on speech and vocal content, less so on music with similar frequency content.

Clicks and pops — transient noise from vinyl, recording glitches, or mic bumps can be identified and repaired.

Getting the Best Results

The AI works best when there's at least 0.5 seconds of pure background noise somewhere in the recording — at the beginning, end, or between sentences. This gives the model a clean noise reference to profile. If every part of your recording has audio over the noise, results are still good, but the noise profile is estimated rather than measured directly.

For music production, use the noise removal before heavy processing. Running it on a heavily compressed or limited mix can make noise harder to separate from the intentional audio content.

Uses for Noise-Removed Audio

Podcast episodes recorded in untreated rooms, voice-over takes for video content, demo recordings from home studios, archived audio transferred from tape or vinyl, interview recordings from field recorders — all of these benefit massively from clean noise removal. The difference between "recorded in a bedroom" and "sounds like a studio" is often just 90 seconds of AI noise cleanup.

Ready to hear the difference?

Upload your track and get AI feedback in under 60 seconds.

Frequently Asked Questions

Can I remove noise from music recordings, not just voice?

Yes. The AI works on any audio content — voice, instruments, full mixes. For music, it's especially effective at removing hiss and electrical hum that accumulate during recording.

Will noise removal affect the quality of my audio?

Aggressive noise removal can cause some coloration in the audio. The AI is tuned to apply only as much removal as needed — most users hear cleaner audio without noticeable side effects.

What's the difference between this and Audacity's noise removal?

Audacity's built-in noise removal uses a fixed filter that requires manual tuning and often sounds unnatural. Engineer Guy uses AI models trained on millions of audio samples to do context-aware removal that sounds significantly cleaner.

Can I remove background music from a voice recording?

If the voice and background music are distinct, AI stem separation can help separate them. Pure noise removal works best on ambient/environmental sounds, not mixed-in music.

Is there a free tier?

Yes — your first processing session is completely free. Pro plan ($9/mo) unlocks unlimited processing and batch upload.

More from Engineer Guy