mmx4 matrix mixer

a matrix mixer with 4 stereo inputs and 4 stereo outputs, controllable via cv

Documentation

Note: This is the primary page for documentation on this modules

• Wiki - https://github.com/TheTechnobear/SSP/wiki/MMX4
• Forum - https://forum.percussa.com/t/mmx4-matrix-mixer-4-by-thetechnobear

Developer: TheTechnobear

I develop these plugins for free, please consider supporting my efforts with a donation. https://ko-fi.com/thetechnobear

Parameters

Name	Desc
VCA 1-4 A-D	control voltage of matrix

Inputs

Name	Desc
In 1-4 L/R	stereo input signals
VCA 1-4 A-D	control voltage of matrix

Outputs

Name	Desc
Out A-D L/R	stereo input signals

General Usage

A matrix mixer allows inputs to be mixed to multiple outputs. In the case of this plugin each input ( 1 - 4 ) is stereo, and also each output ( A - D).

we then connect each input ( 1 - 4 ) to each output ( A - D ) using a VCA, which can be set either from the UI ( statically ) or via CV

the mixing can be consider like a bipolar vca or attenuverter, so can also be used to invert signals (with negative vca)

notes:

• the 'level' is per input/output pair e.g. 2D, 3B
• all mixing is done at audio rate
• the parameter vca value is added to any incoming vca cv

Tips

click encoder

this will set a non-zero value to zero (i.e. clear it) , or a zero/clear value to 1.0

CV mixing

the matrix mixer can be for audio or cv mixing, mixing cvs can open up a whole new world of modulation shapes.

Using vca cv

you can use either bipolar cv (e.g. LFO) or unipolar (ENV) for the vca input. BUT should should remember a negative value will invert the wave form (which can be fun)

IF you do not want this and prefer it going to zero you have two choices a) use the Percussa's excellent scale and offset controls e.g. scale by 0.5 and offset by +1.0 b) use the VCA level on the UI and set to 1.0 ... this will make it go from 0.0 to 2.0 , so it'll be loud unless you scale it ;)

Stereo

whilst the mixer is stereo, you can use if for mono signal, the mixer is optimised to only calculate for the input and outputs connected.

also there is not 'connection' between left and right channels, the limitation is they use the same vcas.

whilst panning is not implemented, if you chain two mmx4 this is easy to achieve, with 2 mmx, connected something like:

1L->1L cv=pan -> 1L vca1 -> 1L 2L->1R cv=pan -> 2L vca1 -> 2R 1R->2L cv=-ve pan -> 1R vca2 -> 1R 2R->2R cv=-ve pan -> 2R vca2 -> 2R

Change Log

• 2.0.0 release for new ssp image
• 1.4.1 release
• 1.4.0 early access release - midi learn
• 1.3.1 release, re-write using new infra and ui
• 1.3.0 early access release
• 1.0.0 Initial Release