PolySigma software solution for multiple SSL Sigmas

Posted on By uffe@frostbox-net

Happy new year to all my friends and clients 🙂

This is a small announcement for SSL Sigma users and it is only preliminary info!

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Use the motorised faders on your MCU controller to control multiple SSL Sigmas as if they where one giant summing mixer with full 2-way communication. It is the missing link for your SSL Sigmas.

PolySigma is a custom software tool that acts as a gateway on your network between up to 4 SSL Sigmas and a 16fader MCU controller using two ipMidi ports. The 4 Sigmas show up with names and rounting info in LCD scribble strip each having a 16 fader bank for that units 16 channels. Bank 5 is for master faders A+B for each of the Sigmas. The software runs on a Raspberry Pi mini computer on your normal network and it does not interfere with internet or other network activity.

It currently provides 2-way control of faders, pan, solo, mute, stereo/mono, rounting to bus A/B, master faders A & B and send Mix B to Mix A.

This control set can easily be expanded to all Sigma functionality including control room controls and a connections to a DAW for automation and recall is under development. The software replaces the original SSL Remote Control App and is based on reverse engineering the network protocol between this software and the hardware unit and therefor have access to the entire feature set.

The software is not available for release yet and only tested for the SSL Matrix as a 16 fader MCU controller. The software is created by Frostbox Labs ApS on behalf of a private client.

4116 D Ram tester with schematics and code

Posted on By uffe@frostbox-net

After several requests I finally got around to finish documenting an old project from the fall 2017. The ancient computer in our Solid State Logic SL4064G+ console uses a lot of 4116 D Ram which are known to go bad. Therefor I needed a way to check which IC is bad when I see a graphic error on the SSL computer screen. I looked around on the internet and found this post on a project designing a D ram tester for a different kind of D ram. Based on this design a made a version for the 4116 type D ram and reused most of the arduino code.

Please let me know if you find any errors in these attachements, thanks!

UPDATE 3: Thanks to Sleepwalker3 again for making comments about another bug. I have uploaded af fixed version of the code ei. version 3.

UPDATE 2: Thanks to Rauno and Sleepwalker3 for making comments about a very seriously bug which meant only RAM address 0 was checked. I have uploaded af fixed version of the code ei. version 2.

UPDATE: The initial schematic had errors in the inverting circuit for the -5vdc. Sorry. Below is a link to the corrected rev2 version:

Download the rev2 schematic here: 4116_tester_schematic

Download the arduino version 2 code here:  4116_tester_ulh.ino

Macro Stream v1.11 released!

Posted on By uffe@frostbox-net

The third release provides support for the Stream Deck revision 2 also known as model number 20GAA9902. This unit looks identical to the original Stream Deck (model number 20GAA9901) but inside uses another communication protocol that is now supported with this release. This is the one and only change from version 1.1 and therefore only an important update for users of this particular unit. Check out the product page here.