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Eurorack Atoner from 4ms

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Uploaded on Oct 7, 2009

The Eurorack Atoner is the latest module from 4ms Pedals. Available at BigCityMusic.com

The harmonic series is extracted from the input signal, which is a mix of the on-board VCO (0:25) and an audio input jack (a keyboard loop in this example). With a simple oscillator as an input, the result sounds like pitch shifting (or pitch jumping, since it jumps from note to note in the harmonic series (1:00). With a complex input, the result sounds likes bit crushing (but it's analogue!) 0:04

The Position knob is the main heart of this unit, it generates a CV that mixes with two input CV jacks (top/mid right side) 1:06. This composite CV sets the cut-off frequency above which all frequencies will be jumped downward (1:26). Inputting a pitch higher than the cut-off will create an output that's a harmonic of the input, shifted down octaves (1:33)

Another neat thing is that the Atoner can generate poly-rhythmic CV trigger pulses based on the harmonic content of the audio input. This is heard at the very beginning of the video, and there's a dedicated Clock Output CV jack for this.

There's also a tone and volume knob for the audio output, and the oscillator has an Off switch!

The CV mix also outputs to a jack

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