Suppress background noise, hiss and hum in any recording with on-device AI — so speech comes through clean. Free, private, and entirely in your browser.
Open the Audio Studio
Go to the DefyAudio Studio and upload your recording.
Open the AI tab
In the settings rail, switch to the AI tab.
Enable Noise Suppression
Toggle on Noise Suppression — an on-device AI model (RNNoise) that removes steady background noise while keeping speech clear. It cleans up a noisy recording; it doesn't pull a vocal out of a music mix (use the Stem Splitter for that).
Export the clean track
Pick a format and download the cleaned-up audio — processed locally, no upload.
AI noise suppression
RNNoise removes steady hiss, hum, fans and room tone while keeping speech intact.
Great for voice
Clean up podcast takes, voice memos, interviews and video call recordings.
Stack with EQ & gate
Follow up with the Noise Gate and EQ to polish the result even further.
Any format
Clean MP3, WAV, FLAC, M4A and more, then export in the format you need.
A noise reducer suppresses the steady background noise in a recording — fan hum, air conditioning, hiss or street rumble — while leaving the voice untouched. DefyAudio uses RNNoise, an AI noise-suppression model that runs entirely on your device, so even sensitive recordings never get uploaded.
Because the model is trained on speech, it excels at cleaning up voice recordings: podcasts, interviews, voiceovers, lectures and call recordings. Pair it with the Noise Gate to cut noise between phrases, and a touch of EQ, for a genuinely broadcast-ready result. Note that this is noise suppression, not source separation — to lift a vocal out of a finished song, use the AI Stem Splitter instead.
Upload your recording to DefyAudio's Studio, open the AI tab, enable Noise Suppression, and export the cleaned track — free, with no upload.
Yes. The AI is designed for steady background noise like hiss, hum, fans and room tone, which are the hardest to remove with a simple gate or EQ.
No. This is noise suppression — it cleans background noise out of a recording while keeping the voice. To separate the vocals from the music in a finished song, use the Stem Splitter, which does AI source separation.
No — the noise-suppression model runs locally in your browser, so your audio never leaves your device.