I can’t believe it’s not a VCO

from $12.00

Description/Usage

8hp

This module is based on ideas presented in Electronotes #132. It is a VCF with a 'filter exciter' section to allow a wide variety of acoustic, semi-acoustic and not-acoustic-at-all sounds. In a sense it takes the concept of pinging the LPG or ringing a VCF one step (or 2) further. The decaying sound is fed back into the input via a VCA. The VCA can be controlled by a gate or an envelope (or both). Another interesting point is higher frequency sounds tend to be louder…..which is what happens naturally in the big room.

DIY

  1. Build guide / BOM (pdf)

  2. Panel Template

Package:

Description/Usage

8hp

This module is based on ideas presented in Electronotes #132. It is a VCF with a 'filter exciter' section to allow a wide variety of acoustic, semi-acoustic and not-acoustic-at-all sounds. In a sense it takes the concept of pinging the LPG or ringing a VCF one step (or 2) further. The decaying sound is fed back into the input via a VCA. The VCA can be controlled by a gate or an envelope (or both). Another interesting point is higher frequency sounds tend to be louder…..which is what happens naturally in the big room.

DIY

  1. Build guide / BOM (pdf)

  2. Panel Template

VCO/VCF based on concepts presented in Electronotes #132. More info - https://nonlinearcircuits.blogspot.com/2019/04/i-cant-believe-its-not-vco.html