Low-cut cleanup
Free Online High-Pass Filter
Use a high-pass filter to reduce rumble, plosives, and excessive low-end buildup in voice recordings, field audio, and rough mixes. Set the cutoff, preview, and export locally with browser-based FFmpeg.
Useful for private interviews, voice takes, and field recordings because the source audio stays on your device.
Uses FFmpeg high-pass filtering to roll off frequencies below a chosen cutoff point.
A quick way to clean low-end noise before more editing, without opening a larger audio workstation.
Drag & drop audio here, or click to upload
Supports MP3, WAV, M4A, FLAC, OGG, AAC, and more
How to use the High-Pass Filter online
- 1.Upload an audio file and let the browser read its duration and sample rate.
- 2.Choose a cutoff frequency that removes rumble and plosives without making the file sound thin.
- 3.Choose MP3 or WAV export, process the file in the browser, preview the result, and download it.
Why use this High-Pass Filter?
Useful for rumble cleanup
High-pass filtering helps when you need to remove HVAC rumble, mic handling noise, or excessive low build-up fast.
Private browser workflow
FFmpeg runs locally on your device, so source files stay off external servers during processing.
Flexible output
Export MP3 for quick sharing or WAV if you want to keep editing the result afterward.
Common use cases
- •Reduce low-end rumble in a spoken voice recording.
- •Clean plosives and boominess from a rough narration take.
- •Prepare field audio for denoise and leveling work.
- •Tighten a draft mix before sending it out for review.
Tips for better results
- •Speech often responds well to small cutoff moves around 60 Hz to 120 Hz.
- •If you push the cutoff too high, the result can lose natural warmth quickly.
- •Pair this with noise reduction when the problem includes both rumble and steady hiss.
High-Pass Filter FAQ
Will this remove all background noise?
No. It only reduces low-frequency content. Mid and high-frequency noise usually needs other cleanup tools.
Is my audio uploaded to a server?
No. The processing happens in your browser, so the source file stays on your device.
Which formats can I upload?
Most common browser-decodable formats are supported, including MP3, WAV, M4A, FLAC, OGG, and many AAC-based files.
When should I export WAV instead of MP3?
Choose WAV if you plan to keep editing or chain more processing afterward. MP3 is better for quick sharing and review.