Voice Enhancer Online
One click, six stages of podcast cleanup — de-rumble, EQ, compress, de-ess, limit, normalize. Drop your voice recording in, get broadcast-ready audio out.
What Happens When You Click Enhance
Six processing stages, applied in the right order, calibrated for spoken voice.
1. De-Rumble
High-pass filter at 80 Hz removes mic stand bumps, AC noise, and HVAC rumble below the voice band.
2. Voice EQ
+3 dB peaking boost at 3 kHz adds presence and clarity. Listeners hear consonants more clearly.
3. Voice Compressor
3:1 ratio at -18 dB threshold with fast attack evens out volume swings without sounding squashed.
4. De-Esser
-6 dB narrow notch at 6 kHz tames hissy 'S' and 'T' sounds without dulling the rest of the high-end.
5. Limiter
Brick-wall peak limiter at -1 dB threshold catches everything that would clip after compression and EQ.
6. Normalize
Final peak normalize to -0.4 dB ensures consistent loudness across episodes without inter-sample peaks.
Why Notevibes Voice Enhancer
Pro chain, calibrated defaults, instant.
One Click, 6 Stages
De-rumble → EQ → compress → de-ess → limit → normalize. The full podcast post-production chain in one button.
Broadcast-Safe
Brick-wall limiter at -1 dB and final normalize at -0.4 dB — never clips, ready for streaming and broadcast.
Calibrated Defaults
Each stage uses the same presets pros reach for: HP @ 80 Hz, +3 dB presence @ 3 kHz, 3:1 compression, sibilance cut at 6 kHz.
Privacy First
Audio is processed locally in your browser using the Web Audio API. Nothing is uploaded.
Any Audio Format
MP3, WAV, M4A, FLAC, OGG, AAC up to 200 MB.
Works on Mobile
Polish voice on any phone or tablet. iOS, Android, all major browsers.
Your Audio Stays on Your Device
Every file is processed locally in your browser using the Web Audio API. Nothing is uploaded.
No Upload
File never leaves your device
No Account
Start enhancing immediately
No Tracking
We never see your audio
When to Enhance Voice
Most files process in under a minute.
Podcast episodes
Pre-flight every episode before publishing — broadcast-safe in one click
Audiobook chapters
Polish every chapter before submitting to ACX/Audible
Video voiceover
Get clean dialogue for YouTube, Reels, TikTok, explainers
Voice memo polish
Turn phone-mic recordings into broadcast-quality audio
Interview cleanup
Even out levels between host and guest, kill rumble, polish
ASMR / narration
De-rumble + de-ess gives clean, comfortable listening
Heavy Background Noise?
Run noisy recordings through the Notevibes Noise Remover first to subtract hum, hiss, and fan noise — then enhance.
Open Noise RemoverFrequently Asked Questions
What is the Voice Enhancer?
A one-click voice cleanup tool that chains six processing stages typically applied during podcast and audiobook post-production: de-rumble, voice EQ, compressor, de-esser, limiter, and normalize. Apply them in the right order without configuring anything.
What does each stage do?
Stage 1 high-passes at 80 Hz to kill rumble. Stage 2 EQ adds a +3 dB presence boost at 3 kHz for clarity. Stage 3 compressor evens out volume swings (3:1 ratio, -18 dB threshold). Stage 4 de-esser tames sibilance at 6 kHz. Stage 5 brick-wall limiter catches every peak at -1 dB. Stage 6 normalizes peak to -0.4 dB for consistent loudness.
Will it remove background noise?
The chain includes de-rumble, compressor, and limiter which together suppress some constant low-end noise, but it does not include spectral noise subtraction. For heavy hum/hiss, run audio through the Notevibes Noise Remover first, then through the Voice Enhancer.
Is it safe for streaming and broadcast?
Yes. The brick-wall limiter at -1 dB ensures no clipping and the final normalize lands at -0.4 dB — well within streaming and broadcast peak specs. Works for podcast platforms, YouTube, and audiobook delivery.
Will it work on music?
The chain is tuned for spoken voice — the presence boost and de-esser settings target the voice band. On music it can sound unnatural. For music mastering, use the individual tools (limiter, compressor, EQ) in the Audio Editor with custom values.
Can I customize the chain?
Not on this one-click page. To tune each stage, open the Notevibes Audio Editor — it lets you stack the same effects with custom parameters and audition each stage individually.
Is the Voice Enhancer free?
Yes. Completely free with no sign-up, no watermark, and no limits. Max file size is 200 MB.
Is my audio file uploaded to a server?
No. The enhancer runs entirely in your browser using the Web Audio API. Your file never leaves your device.
What audio formats are supported?
MP3, WAV, M4A, FLAC, OGG, and AAC. Anything your browser can decode will load. Output is exported as a 192 kbps MP3.
Can I create audiobooks with Notevibes?
Yes. The AI audiobook generator turns your EPUB, Kindle, or PDF into a narrated audiobook with character detection, 550+ voices, and ACX-compliant volume normalization built in.