Studio-grade voice. From any recording.
An in-browser audio laboratory that removes hiss, hum, echo and background noise from voice memos, interviews, podcast takes, YouTube dialogue and field recordings — then rebuilds them to a broadcast-ready studio tone. 100% free, unlimited, and private: nothing ever leaves your device.
01 / Source Input
Drop your audio here
MP3 · WAV · M4A · OGG · FLAC — up to 50 MB
02 / Signal Cleaning
03 / Preset Profiles
Enhance your audio first, then pick an effect. Preview instantly by pressing Play — the Download button always exports the currently selected effect.
Local inference active. Processing via advanced Web Audio DSP — noise-floor detection, spectral gating, hum notching, and studio EQ. No uploads, no API keys, no limits. Privacy Lock · ON
How the enhancer works
Four DSP stages run in sequence inside your browser — analysing your recording, isolating the voice, suppressing the room, and rebuilding harmonics for a studio-mic tone.
Noise-Floor Analysis
The engine samples the quietest 500 ms of your take to model the exact spectral fingerprint of the noise — traffic, fans, AC, tape hiss, laptop coil whine.
Adaptive Spectral Gate
A time-varying gate attenuates every frequency bin below the learned noise profile while preserving voice transients — no pumping, no artefacts.
De-hum & De-reverb
Notch filters remove 50/60 Hz mains hum and its harmonics; an early-reflection suppressor tightens the room so it sounds like a treated booth.
Harmonic Rebuild
Studio EQ, presence boost and gentle compression restore the body and clarity lost to noise reduction — the result is a broadcast-ready voice.
One-click studio enhance
Drop a file, hit Enhance. The engine detects sample rate, noise profile and voice band automatically.
8 broadcast voice effects
Studio Clean, Podcast Warm, Radio Broadcast, Cinematic Deep, Bright Presence, Vocal Booth, Concert Hall, Telephone.
A/B compare in real time
Toggle Original vs Enhanced on the same waveform to hear exactly what the DSP chain is doing.
WAV & MP3 export
Lossless 16-bit WAV for editing, 192 kbps MP3 for upload — both encoded locally, no watermark.
100% private, 100% free
Everything runs in your browser via Web Audio API. No uploads, no accounts, no API keys, no usage limits.
Works on any device
Desktop, laptop, tablet, mobile. Chrome, Edge, Safari, Firefox — no plugin install required.
Every voice, every workflow
The enhancer is tuned for spoken word across a wide range of source material — from smartphone recordings to professional interviews.
Common questions
Everything you need to know about the AI audio enhancer, noise removal quality, formats and privacy.
Is the voice enhancer really free and unlimited?
Yes. There is no signup, no API key, no watermark and no per-file limit. The entire DSP pipeline runs inside your browser using the Web Audio API, so we don't pay any server cost — and neither do you.
How does the noise removal actually work?
The engine analyses the quietest portion of your recording to build a spectral profile of the background noise, then applies an adaptive noise gate that attenuates only the bins matching that profile. A de-hum notch filter targets 50/60 Hz mains interference, and a de-reverb stage suppresses early room reflections. Finally a studio EQ and gentle compressor rebuild the natural harmonics of the voice.
Will my audio be uploaded anywhere?
No. Files are processed 100% locally in your browser. Nothing is sent to any server, cloud, or third-party service. This makes it safe for confidential interviews, journalist recordings and sensitive dialogue.
What file formats can I upload and download?
You can upload MP3, WAV, M4A, OGG and FLAC files up to 50 MB. You can download the enhanced result as either a lossless 16-bit WAV (best for further editing) or a 192 kbps MP3 (best for upload to YouTube, podcast hosts and messaging apps).
Which voice effect should I choose?
For podcasts pick Podcast Warm or Vocal Booth. For YouTube voice-overs try Bright Presence. For narration and trailers use Cinematic Deep. For live-radio energy pick Radio Broadcast. Use Studio Clean if you want a pure, uncoloured enhance and plan to mix it yourself later.
Does it work on mobile?
Yes. The player, waveform, controls and MP3/WAV export all work in mobile Chrome, Safari and Edge. Very large files may take longer to render on low-end phones — for best speed on mobile, keep clips under 10 minutes.
Can I use the enhanced audio commercially?
Yes. You own the audio you upload and you own the enhanced result. There is no licence fee and no attribution requirement. Use it in your podcasts, YouTube videos, courses, films and client work freely.