An open-source pipe organ sample player compatible with Hauptwerk sample sets.

- Mid-side encoder/decoder
- Mid-side stereo widener
- Stereo imaging
- Stereo channels swapper
- 180-degree channel phase flipper
- Stereo correlation and balance meter
- Unique “plasma” vector scope
Step into a new dimension of stereo control with Voxengo MSED – a professional, no-compromise free audio mid-side encoder-decoder AudioUnit, AAX and VST plugin designed for audio engineers and creative producers alike. Whether you’re tightening a mix, widening a synth pad, or repairing phase issues, MSED gives you surgical command over the heart and soul of your stereo image.
At its core, MSED effortlessly splits any stereo track into its Mid (center) and Side (ambient) components – and seamlessly reconstructs them back. But it doesn’t stop there. With the “Inline” mode, you can adjust gain, panning, and mute status for Mid and Side channels independently without needing multiple plugin instances. That means faster workflow, cleaner routing, and zero clutter.
Need to flip phase by 180°, swap channels, or extract only the Mid or Side signal? MSED handles it instantly. And with its stunning Plasma Vector Scope, you don’t just hear the stereo field – you see it. This unique, frequency-aware visualizer places low frequencies at the outer edge and high frequencies toward the center, helping you spot phase issues, balance problems, and correlation irregularities at a glance.
Add to that stereo correlation and balance meters, zero processing latency, and 64-bit floating-point precision, and you have a lightweight yet powerful tool that fits seamlessly into any session.
Voxengo MSED isn’t just a utility – it’s your stereo scalpel. Clean. Fast. Visual. Essential.

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
Dive into DelaySon, a meticulously crafted plugin that captures the soulful warmth and organic character of vintage tape delay units. Its carefully designed emulation delivers an authentic analog sound, inspired by the timeless charm of classic echo machines.
Its intuitive interface and versatile controls make it simple to achieve stunning results, from subtle tape warmth to intricate rhythmic echoes, with unmatched precision and musicality.
A monorepo for Casio CZ-101 phase distortion synthesis — including a preset manager web/desktop app, an in-browser phase distortion synthesizer, and a VST3/CLAP/AUv2 plugin.
Boogex is a free guitar amplifier AudioUnit, AAX, and VST plugin with a variety of sound shaping features, for professional sound and music production applications. With Boogex it is possible to get a heavy distorted sound as well as slight “jazzy” saturation sound. Boogex is able to apply convolution with any speaker cabinet impulse response (selection of built-in impulses is available). The processing latency is close to zero making it possible to use Boogex for real-time guitar processing.
Boogex can be used as a plain stereo convolution processor when its “Amp” stage is turned off. The convolver module has zero latency and is not CPU-demanding. Boogex also includes the input gate module, and reverberation module derived from Voxengo OldSkoolVerb reverb plugin.
Boogex produces a nice “minimalist” rock music-geared sound which may be a bit noisy at higher overdrive settings; higher frequencies can be easily suppressed with its built-in Emphasis EQ. With the amp modes Boogex currently provides, it is not particularly well-suited for metal music, but can still be used as a cabinet impulse response processor for metal music.

Overtone GEQ is a free 7-band harmonic (overtone) graphic equalizer AudioUnit, AAX, and VST plugin with multi-channel operation support (supporting up to 8 input/output channels, audio host application-dependent). Overtone GEQ offers extensive internal channel routing capabilities, and supports mid/side channel processing.
Beside equalizing, Overtone GEQ applies harmonic enhancement: it uses 7 harmonic enhancement modules, one for each EQ band. This generates a complex harmonic coloration you will probably like a lot.
Overtone GEQ was designed to allow audio engineers to apply quick EQ shape adjustments together with adding a bit of harmonic richness to the audio material (mainly mixes and sub-mixes due to a comparably high load this EQ puts on a CPU).

pedalboard is a Python library for working with audio: reading, writing, rendering, adding effects, and more. It supports most popular audio file formats and a number of common audio effects out of the box, and also allows the use of VST3® and Audio Unit formats for loading third-party software instruments and effects.
O(1) memory usageAudioStreamChorus, Distortion, Phaser, ClippingCompressor, Gain, LimiterHighpassFilter, LadderFilter, LowpassFilterConvolution, Delay, ReverbPitchShiftGSMFullRateCompressor, MP3CompressorResample, Bitcrushpedalboard.load_plugin)multiprocessing!tf.data pipelines!Bitter shows how many of the available bits are being used by the audio signal, reports clipping samples, and estimates when digital-to-analog conversion would cause inter-sample clips. Typical uses for a bitscope include: verifying that a render dither is working properly; verifying that a particular plugin is not reducing the signal bit depth; testing for faulty audio source data.

A fully free and self-contained modular synthesizer based on the popular VCV Rack. Available in AudioUnit/CLAP/LV2/VST2/VST3 plugin formats and as a standalone app for FreeBSD, Linux, macOS, Windows and the Web.


Filtron is a 12dB state variable filter that can smoothly transition between lowpass, bandpass, and highpass. It is capable of self-oscillation with resonance levels that can reach up to 11! Filtron also features a fat sounding internal saturation algorithm and a sizzly post overdrive with two modes to choose from: cold and hot.