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Airwindows is one guy: me! I am an audio hacker and computer programmer from way back. I seek only to continue my life up here in Vermont, inventing things and putting them onto the internet, sometimes for free and sometimes for pay. My hope is that people richer than me (i.e. most people) don't rob me. My other hope is for another cup of Aeropress. One out of two ain't bad!



TL;DW: Mastering grade very low Q tilt EQ. ToneSlant This is a new plugin, not a port from an existing Audio Unit. It’s based on a variation on the Average concept. Turns out, it’s the tail end of the ‘averaged samples block’ that causes the cancellation node. ToneSlant implements a much bigger sample block (100 […]


TL;DW: A lowpass filter you probably don’t have in your DAW, with a distinctive tone! Average This plugin is an exploration of a fascinating filter type that, I think, is really underrated. It’s a straight-up extremely simple averaging filter. If you set it to integer values, it exactly averages that number of taps on the […]


TL;DW: Limit or wipe out the highest frequencies, near the Nyquist frequency. Slew2 Sometimes I just get lucky :) This plugin is just the anti-aliasing technology I was experimenting with in 2010, applied to Slew, my simple slew clipper. I thought it was going to make the slightly grungy Slew smoother (Slew is a clipper, […]


TL;DW: Build this bass-enhancer into an aux on your mix to generate controllable tape-like fullness and bass depth. FathomFive This is a first for Airwindows VST: FathomFive introduces a special Airwindows algorithm that acts like a combination between an EQ and a bass amp. This plugin can be used in sound design or on isolated […]

SlewOnly / SubsOnly

TL:DW; Monitor through these plugs to hear only the highs, or only the subsonics, and adjust your mix accordingly. Also works as special effects. SlewOnly / SubsOnly By request, here’s my mix monitoring tools, for VST and Audio Unit, Mac and PC! Please remember, these like Guitar Conditioner are control-less plugins so you don’t operate […]


PurestAirDemo is a universal binary Audio Unit plugin for enhancing treble up near the Nyquist limit! It specifically tweaks that sonic area, wherever it is, with special Airwindows algorithms. The idea is to get ‘air band’ boost without the coloration of a normal equalizer, and in line with the Purest style of plugins it’s done […]


ToVinyl3Demo  is a universal binary AU plugin to center and accentuate bass, such as you’d do for vinyl mastering or to make an electronic music mix more efficient over a large PA system. You can cut side-channel bass and tighten and control the extreme lows in the middle, with great-sounding Airwindows filters. Also, ToVinyl 3 includes […]


Average is a utility plugin for filtering. It averages adjacent samples, and adds the remaining fraction as a ‘leftover’ sample so you can smoothly fade between values. It uses all the Airwindows audio tricks like noise shaping to the 32-bit floating point buss, to be the best-sounding moving average you could possibly have! Truly an audiophile […]


CStripDemo is the Airwindows channel strip! 32bit/64bit/PPC Audio Unit, with EQ, compression, gate, highpass, lowpass and timing trim, CStrip is the go-to toolbox for any track. All the parts not in use switch themselves out of the circuit, so you can engage only the parts you need. They’re designed to work together perfectly, interleaved in the […]


EQDemo existed for a little while before it got rolled into CStrip, the Airwindows channel strip! It’s the backbone of CStrip. It’s got Airwindows-style high/mid/low controls, highpass and lowpass, and sweepable crossover points (note: not center points, crossover points). If you’d like this, you may as well get CStrip and you’ll have it—but if you want […]

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