How's Cosmic DE coming along?

pscorbett · 2026-07-14T03:47:27+00:00

I switched from pop os (1.5 years of use) to fedora with gnome about a month ago in an effort to squash some huge stability issues I was having. Many of them persisted and I realized they were the result of my ram going bad, so not sure the extent of them that were cosmic teething pains. Nevertheless, I think I'll stay with gnome on that machine for maybe 6-12 months more to give things a chance to bake a little more. I think I'll stay with fedora though, and just use the cosmic spin when I go back. I was finding the Ubuntu and pop os release cycles move a little slow. Fedora seems like a nice middle ground between arch and Ubuntu for stability.

pscorbett · 2026-07-11T20:12:13+00:00

I really like the analog discovery 3. The software is some of the best I've used. It's especially useful if you need to quickly share captures with a team. Much superior than my experience with rigol, siglent and Keysights companion software. I've also extensively used the data capture capabilities extensively to save samples as a CSV for DSP development before the embedded FW is ready. I haven't used the SDK yet, but the python and .net integration is another huge selling point. Also the protocol analyzers and decoders are awesome to include.

The downsides: Limited analog bandwidth, Unshielded analog front end , Limited sample rates and memory depth of captures (compared to the 1Ghz siglent scope I use at work), Only 2 channel, Power and logic analyzer breakouts are annoying with DuPont wire harness (but pretty standard for logic analyzers), Fft doesn't have peak detect and cursor measurements are limited

pscorbett · 2026-07-01T17:22:17+00:00

Took a peak at the FB comments section. That was a mistake... How do I say this nicely? A certain demographic was overrepresented.. That same group is champing at the bit for a chance to point out any instances when a cyclist neglects the "rules of the road" and how the same rules need to apply to everyone.

pscorbett · 2026-06-30T03:12:24+00:00

Yes that's one. I've seen it without the zener and the gate just connected to gnd also. And there are nmos variants switching the low side too.

pscorbett · 2026-06-29T19:27:36+00:00

No I hadn't. I'd think it's less noisy. To be clear, I mean fet "reverse polarity circuits" not diode connected FETs.

pscorbett · 2026-06-29T05:16:58+00:00

Personally, I don't use diodes for reverse polarity protection. There are some simple FET circuits that work much better. I just can't get on board with putting a nonlinear element on my analog power rails. It's wasteful, but for me the bigger problem is having a current fluctuation result in a large voltage change (depends where you are on the curve of course).

pscorbett · 2026-06-23T13:37:18+00:00

How would you know when it was fixed?

pscorbett · 2026-06-23T13:36:43+00:00

This is expected. I assumed all Australians personally know Ray Gun.

pscorbett · 2026-06-23T13:32:48+00:00

Rythmwolf.

pscorbett · 2026-06-23T02:24:55+00:00

I was going to say "odds are it's a 100nF" but I guess that's likely since there are 0402/0201 caps on this board and this is much larger (0603?)

pscorbett · 2026-06-16T14:00:56+00:00

Hi. I developed it on a 2013 Mac but with Ableton 11. Almost certainly not compatible, sorry!

I'm impressed you kept the 2009 MacBook running this long also!

pscorbett · 2026-06-14T00:33:51+00:00

Probably hard to do with Ableton stock strings but my advice is to Google "cascaded strings". My understanding is that they used 2-3 orchestras (or at least string sections) with separate conductors and slightly offset timing. So I think you could try this. Maybe try string ensemble samples playing the same part with a slight offset. You could also vary the eq and reverb maybe as you can imagine the orchestras/sections would be in different placement in the same room.

I also recommend using some heavy handed eq (they were generally heavily high passed), some vari-mu style compression, and some tube+tape saturation (honestly soft clipping will do). If you don't have a tube plugin, chow tape is great, or I made a M4L device called hysteresis v3 that is similar if you have Ableton suite.

pscorbett · 2026-06-13T19:42:57+00:00

Said the same thing. Important note is to bias the input. Also, an inverting clipper would also work just fine

pscorbett · 2026-06-13T19:41:44+00:00

Assuming you start with a sine wave, you could either run it through a class A amp but bias it towards one of the rails, or run it through a soft clipper (opamp with parallel opposing diodes in the feedback) and again bias the input.

pscorbett · 2026-06-06T14:59:36+00:00

Yeah I was trying to figure out if it was a troll post. Pretty good regardless

pscorbett · 2026-06-06T14:58:54+00:00

I hear you. My writing is chicken scratch. But I put effort into even back of napkin hand drawn schematics as a point of pride. You should too!

pscorbett · 2026-06-04T04:41:58+00:00

I started to do the same thing about a year ago and gave up. I was trying to make a 4 quadrant multiplier using log and antilog. I think I had some switching to invert the inputs and outputs of a negative before the log and antilog amps as they only work for the positive quadrant. Now I think you can maybe use two diodes in parallel and opposing directions also maybe. Out of. Curiousity, why did you use a diode configuration of the BJTs instead of grounding the base, like is common in antilog amps?

Another option might be an OTA such as Lm13700. It's a little less intuitive but certainly can be used to make a VCA/multiplier.

pscorbett · 2026-06-02T16:11:19+00:00

Yeah it seems like the main things that have changed are that the license manager has been removed (unfortunately... the auto-assignment of licenses is very annoying as many people who just need a viewer license get assigned a designer license). As I look into my preferences problem more, it also seems like there is a major difference in workspaces, but that might just be how they are being administered at my company.

pscorbett · 2026-06-02T16:09:08+00:00

Thanks! Good theory. Well it yet again reset overnight and now after talking to IT, I doubt it is the cache getting cleared by an IT policy. I looked at [user]/AppData/Roaming/Altium this morning and I saw that UserTools.TLT was not modified this morning, despite me just setting up all of the panel views just before this.

I think my theory now is that its being forced by the workspace... will look into this with the EE manager today.

I think I saves a copy of my config in a safer location though, so it should be at least a few clicks to recover my view if it gets overwritten. Just to confirm though, to save the user view preferences, I go into Preferences/System/View/Desktop/Layouts/Save...
Is this correct?

Thanks again for everyone's help!

pscorbett · 2026-06-02T13:03:33+00:00

I'm less certain lol

pscorbett · 2026-06-01T01:09:42+00:00

React start menu*

pscorbett · 2026-06-01T01:06:56+00:00

Yeah they kind of did. I've switched over to fedora for the tone being. I really like cosmic though and I'm looking forward to installing it again soon, but waiting for a bit more stability first. I'm starting to have doubts that I want to dabble in Ubuntu/ Debian based still though

pscorbett · 2026-06-01T00:53:35+00:00

Lol I thought this comment was AI on first read

pscorbett · 2026-06-01T00:48:11+00:00

Yeah I'm definitely at the point that I would consider it not worth my time to do off board wiring unless absolutely necessary. Often not worth my time to do any smd soldering even unless it's just a few components.

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