Category Archives: Equalization

Audio equalization

Spatial-Linux ~ Boom 3D FOSS Alternative

Posted by tom2tec on

3D sound for every app on your Linux desktop. Looking for Boom 3D on Linux? Spatial Linux is a free, open-source alternative. It adds a virtual output device to PipeWire and processes everything you play through it: 3D surround for headphones, a room around the music, clarity, bass and a night mode, plus a 10-band equaliser. You can also set each app’s volume separately — game chat quiet, music loud — right from the app. It runs entirely on PipeWire’s built-in filters, so no extra audio plugins are needed.

github.com/Nothingman333/Spatial-Linux

Glacier EQ ~ USB DAC Parametric EQ

Posted by tom2tec on

Cross-platform parametric EQ editor for USB DACs. Offline, direct Tauri+React app for desktop and Android.

glacier eq user interface

github.com/Bukutsu/glacier-eq

FxSound ~ Digital Soundcard

Posted by tom2tec on

FxSound is a digital audio program built for Windows PC’s. The background processing, built on a high-fidelity audio engine, acts as a sort of digital soundcard for your system. This means that your signals will have the clean passthrough when FxSound is active. There are active effects for shaping and boosting your sound’s volume, timbre, and equalization included on top of this clean processing, allowing you to customize and enhance your sound.

github.com/fxsound2/fxsound-app
github.com/fxsound2/fxsound-driver

FluidEQ ~ System-wide Parametric Equalizer

Posted by tom2tec on

FluidEQ is a free, open-source system-wide parametric equalizer for Windows 10 and 11, processed by its own audio engine or by Equalizer APO — your choice. Tune once per output, and the right sound follows the right device without you touching anything again.

fluideq user interface

github.com/StartSWest/FluidEQ

Sonic Topography ~ Music Player & Visualisation

Posted by tom2tec on

Sonic Topography is a desktop music player and 3D music visualization application. It transforms the low, mid, and high frequencies in music into three-dimensional terrain that undulates, glows, and flashes, turning listening to music into a breathing sound map.

sonic topography display

github.com/yin-yizhen/sonic-topography

SonEQ ~ Analog Style Equalizer Plugin

Posted by tom2tec on

SonEQ is the ultimate analog-style equalizer for both mixing and mastering sessions. Inspired by the warmth and character of classic analog EQ units, SonEQ provides a remarkably tasteful character to the audio source.

Provides Vintage Analog Charm.
Has A User-Friendly Interface.
Offers Versatile Applications.
It’s Completely Free.

Sonimus SonEQ seamlessly integrates with all major DAWs, available in VST, AU, and AAX formats.

sonimus.com/products/soneq
www.youtube.com/watch?v=_YNMrTWl0Bg
sonimus.com/music-artists-program

Audacity ~ Chris’s Dynamic Compressor

Posted by tom2tec on

I’ve written a program that makes it easier to listen to classical music, or other music that has a wide range of volumes, at low volumes or in high noise conditions (such as in your car) so that you can still hear the soft parts. I’ve also written a plugin version, designed to be used with the free audio editor Audacity. You can read about the background and rationale of the plugin here.

github.com/theDanielJLewis/dynamic-compressor-for-audacity

pyEQ ~ Python Mono Parametric Equalizer

Posted by tom2tec on

A simple parametric equalizer with 5 IIR filters. Written in python 3.4 for no other purpose than self-learning and fun. Currently supports only mono wave files.

Uses scipy, numpy, pyaudio for audio processing and pyside for GUI.

github.com/twoz/pyEQ

GSonic ~ Stereo Redefined

Posted by tom2tec on

GSonic Reference is a high-quality speaker and room correction tool that generates precision FIR correction filters from in-room measurements. It combines spatial measurement averaging with advanced filter generation to deliver studio-grade correction for any stereo listening environment.

Features:

  • Integrated Measurement & Filter Generation — Measure and generate in a single application
  • Spatial Averaging — Multi-position measurement for robust, position-independent correction
  • Automatic Clock Drift Compensation — No need for loopback cables or synchronized clocks
  • Low Latency Filters — 32,768-tap FIR filters at 48 kHz (pure C++ codebase, 341 ms processing latency)
  • Stereo Balance — Perceptual loudness-based stereo balancing
  • Target Curve Support — Built-in presets or bring your own custom target curves
  • Multiple Output Formats — Mono (L/R) and interleaved stereo WAV filters for maximum compatibility
  • ASIO & WASAPI Support — Choose your preferred audio backend on Windows

github.com/ObsessiveCompulsiveAudiophile/GSonic
hydrogenaudio.org/index.php/topic,129351.0

FlavourMTC ~ Mixbus Tone Control

Posted by tom2tec on

FlavourMTC follows classic “passive” equalizer designs where the EQ circuits itself are not able to amplify signals but a dedicated amplifier stage takes care of it. Those EQ designs are well known for allowing very transparent frequency changes while their amplifier designs do add some icing on the cake quite often.

FlavourMTC implements this by utilizing 1st order shelving filter designs avoiding unwanted resonances and takes advantage of “zero delay” implementations for most accurate higher order filtering and w/o introducing curve warping near Nyquist frequency. The output amplifier stage of the plugin can be calibrated according specific mixing levels, provides a distinct “box tone” and glues everything together. Parts of the plugin are oversampled internally for maximum transparency and sound quality.

varietyofsound.wordpress.com/downloads

autoeq ~ Automatic Headphone Equalization

Posted by tom2tec on

Four easy steps to make your headphones sound better.

autoeq.app
github.com/jaakkopasanen/AutoEq

ASH Toolset ~ Headphone Correction & Binaural Synthesis

Posted by tom2tec on

The Audio Spatialisation for Headphones Toolset is a set of tools for headphone correction and binaural synthesis of spatial audio systems on headphones.

Features:

  • Headphone Correction — Generate headphone correction filters in WAV format for IR convolution or as configurations for graphic equalisers.
  • Binaural Room Simulation — Generate customised binaural simulations of different acoustic environments including control rooms, studios, halls, and more. Resulting filters can be saved in WAV format or SOFA format for IR convolution.
  • Equalizer APO Integration — Auto configures Equalizer APO to apply created filters and perform headphone correction and binaural room simulation.
  • HeSuVi Compatibility — Generates filters in formats compatible with HeSuVi, a headphone surround virtualization tool for Equalizer APO.
  • SOFA Format Compatibility – Load HRTF datasets and export customised binaural responses in SOFA format
ASH Headphone Toolset

github.com/ShanonPearce/ASH-Toolset
sourceforge.net/projects/ash-toolset