Scoping and Analyzing a Eurorack Patch

I've used the Saleae Logic analyzers at my past 2 jobs and fell in love with them and their all too simple software. After my experience in an EE lab at Georgia Tech where we used a monstrous Windows based logic analyzer that took 15+ minutes to set up, the Saleae was a breeze. 

After following along with the Pro 8 and Pro 16 releases, I've been lusting after a Pro 8. Up to 8 channels that can be both analog and digital?! Count me in! 

I drove down to the Saleae office in South San Francisco and purchased my Pro 8 from them. Cool guys with a cool product.

I hooked it up to some of our work boards and had the necessary measurements in a couple minutes. Easy peasy.
Besides work measurements, I've been waiting to hook up a Pro 8 to my synths and get timed out analog readings. 

I made a simple patch that ran a clock into René, René's QCV out into an STO. STO sine out into an MMG and out to a mixer. The clock also went to a PEG which created a triangle envelope to control the MMG.
Below is the recording of the clock, QCV out, envelope, and audio output.

I then decided to get a bit more exciting with the patch and slowly modulated PEG's Divide, Skew, and Curve to get some 'cooler' looking envelopes and audio outputs.

Overall, I think it's as cool as I expected. Everyone scopes the audio and envelopes with O-Scopes, but I haven't seen a completely logged patch. 

More to come!


  1. This is one the best blogs i have ever come across on the internet. Have been reading posts from your blog, really interesting. Happy Independence Day Quotes By Narendra Modi in Malayalam 2018

  2. The electric field acts between two charges in a similar manner to the way that the gravitational field acts between two masses.
    voltage optimisation Sunderland

  3. Thank you so much for the information that you have shared here with all of us. You have made it easier for us.. 먹튀사이트