X-Hum by Waves audio restoration plugin interface for hum and rumble removal

X-Hum: Low-End Hum and Rumble Removal Plugin by Waves

X-Hum is a Waves audio restoration plugin that reduces 50 and 60 Hz hum, its harmonics, and low-frequency rumble using tuned notch filters and a high-pass filter. It is designed to clean up the low end of recordings and mixes.

VST2AUAAXWindowsmacOS

AVAILABLE ATPlugin Boutique

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01Overview

X-Hum targets the low-frequency problems that can undermine an otherwise good recording or playback chain. Waves says hum from ground loops, bad connections, nearby transformers and mechanical rumble can all compromise bass response. The plugin is built to address these issues while also letting you set a filter cutoff to remove DC offset without affecting the bass you want to keep.

Best for

Hum removal from recordings
Low-end rumble cleanup
Ground loop noise reduction
DC offset removal
Mastering-stage low-end cleanup

Developer: Waves
Category: Audio Restoration
Store: Plugin Boutique

02Key features

What you get

Handles both 50 and 60 Hz hum problems
Eight tuned notch filters reduce hum and harmonics up to -60 dB
High-pass filter at 12 or 24 dB per octave for rumble
Link or unlink filter parameters as needed
Factory presets for the most common use cases
Filter cutoff can remove DC offset while keeping bass

03In depth

Hum Removal With Tuned Notch Filters

X-Hum handles both 50 Hz and 60 Hz mains hum, so it fits recordings made in different regions. Its eight tuned notch filters target the fundamental hum frequency and its harmonics, reducing them by up to -60 dB.

Because the filters are tuned to specific frequencies, they are meant to remove the hum while leaving the surrounding material largely intact. Link controls let you change parameters across filters together, or unlink them to set each one individually.

Rumble Control and DC Offset Filtering

The high-pass filter can be switched between 12 and 24 dB per octave to reduce low-frequency rumble from mechanical sources. Waves also notes that setting the filter cutoff low enough can remove DC offset, which may be eating into headroom at sub-audible frequencies.

Factory presets cover the most common use cases, giving you a starting point before you fine-tune the settings to your material.

04Specs

Will it run?

Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.

Developer	Waves
Type	Plugin
Category	Audio Restoration
Formats	VST2, AU, AAX
Operating systems	Windows, macOS

05FAQ

Questions, answered

What formats does X-Hum support?

X-Hum is available in VST2, AU and AAX formats.

Which operating systems does X-Hum run on?

X-Hum runs on Windows and macOS. The listed Mac requirements cover macOS Monterey 12 through Sequoia 15 for VST, AU and AAX, and Windows 10 and later for VST and AAX.

What frequencies does X-Hum remove?

X-Hum addresses both 50 Hz and 60 Hz hum, targeting the fundamental and its harmonics with eight tuned notch filters. A high-pass filter reduces rumble.