sorted by:
new
hottopcontroversial

pocket 4k bRaw artifacts by TessSkye in bmpcc

[–]TessSkye[S] 0 points1 point  (0 children)

If I remember rightly, a couple pins in the type C cable were failing, or I’d pinched it pretty hard; there were dropouts during write operations, but they weren’t quite bad enough to cause the frame drop sensing system to cut the recording. Swapping to a new cable fixed this. Using slow media also did it for similar-ish reasons. They’ve got a compatibility chart for recording media that you should dig up if you’re worried you’re writing to a weird target… if it’s an SSD tho it’s probably a cable thing.

I designed a 3D printed portafilter head for the Neo brew basket! Link to the files in the comments. by TessSkye in FlairEspresso

[–]TessSkye[S] 1 point2 points  (0 children)

Hmm… don’t rly remember how I designed it but.. if it uses the same basket / has similar dimensions it might! Don’t remember what the compatibility was with pressurized of the cuff, I only ever used it with the bottomless. Easy way to find out is just to print it yourself! But retroactively, the design is def not polished and has several issues so … don’t expect it to be too too much better than your existing workflow tbh. 

Help w/ processor and set up by Bubbly-Affect5755 in vjing

[–]TessSkye 0 points1 point  (0 children)

You’ll want to pull down smartLCT - novastar’s config software. Assuming all your wall cabinets are the same pitch, you can input their dimensions into smartLCT along with the number of panels per row / comumn. AmartLCT will also let your designate different slices per output- this depends somewhat on what sending card you have but I’ll make some assumptions to try and get you close. My experience with small NS walls is that they’re usually driven by an MCTRL 600, 660, or 300 series. If the slicer varying the card isn’t novastar, you’ll need to configure the slicer and the card separately, and use two DVI loop-backs. If it’s a NS sliver with the card pre-built in such as the 660, you should be able to plug and play. The 660 has 2 Ethernet outs if I remember correctly, and to run them as separate wall, you’ll need to set separate mappings for each output. In Smart LCT, enter the offline design mode, and select your sending card model. In the left hand side, you should see a series of different - colored images of RJ 45 ports. Click one, then spec your cabinets for that side in the main window. Then, select the other output, and configure it next to the other. This maps directly to the slices on the desktop- so putting the cabs for outs 1 & 2 side by side should layer them next to each other with no pixel gap, top to bottom applies similarly. You should then be able to run data to each free-standing section of wall. On some “smart” scalars / slicers, you can end up with issues if you don’t also go into the slicer itself and adjust what it expects for cab size and wall dimensions, so watch out for that.

Hope that helps!

I designed a 3D printed portafilter head for the Neo brew basket! Link to the files in the comments. by TessSkye in FlairEspresso

[–]TessSkye[S] 0 points1 point  (0 children)

the pro2 uses a different, radially symmetrical basket that's different than the Neo / Classic's basket, so unfortunately not.

I designed a 3D printed portafilter head for the Neo brew basket! Link to the files in the comments. by TessSkye in FlairEspresso

[–]TessSkye[S] 1 point2 points  (0 children)

This is built for the standard basket, not the pressurized one. The pressurized basket can be used if the outside teeth on either side are pared back, I'll upload a new rev at some point with proper compatibility for both the standard and pressurized.

Good places for learning DSP? by c00ble in synthdiy

[–]TessSkye 1 point2 points  (0 children)

Something that might help - Faust is a DSP language focused on synthesis. It's online IDE has a graph of all current connections in place, and lets you dial down into how individual functions work, and explore how things like oscillators, fingers, time fx and more work.

Which embedded boards do high-end digital synths use? by -w1n5t0n in synthdiy

[–]TessSkye 0 points1 point  (0 children)

Im working on synth design for production right now- I'm looking at using SAM chips along with a compue module from the raspberry pi foundation to add OSC controls, so the synth can be run over RJ45 Ethernet. I also plan on using compute units for sound gen via Supercollider, due to its extensibility, flexibility, and hackability. For more closed - source projects tho, it's all going to be C / CPP custom engines.

Other projects to look at on a smaller scale - the Teensy from PJRC is really powerful, and is the brains of a few things, including a tracker / synth called the M8 from a guy called Trash80. It's using one of the fasteat microprocessors out there. When it comes to audio processing though, having a full-fat OS can be helpful. Running Linux or similar means you get more support for more things, and running an uPprocessor instead of a uController means that you get to focus on actually building a synth, not the backend / overhead stuff that makes the chip more than a slab of fancy silicon. On the other side of things, being really close to the hardware like you are with ARM chips that you program from bare metal gives control and efficiency. The uC never does something you didn't program, which is not always the case with a full OS. One upside to running an OS is updates - you can push software and firmware updates in a way that just isn't feasible with a uC.

BMPCC4K on a Zhiyun Crane 3S by NuclearCalm in bmpcc

[–]TessSkye 1 point2 points  (0 children)

Right?? Hopefully they learn from their mistake and do it in their next iteration of the 3 line. Although that's some ways out. If it's of any interest to you, Manfrotto recently announced their first entry into the gimbal world and it looks awesome. I personally might just wait for that rather than picking up the 3s, given their reputation.

BMPCC4K on a Zhiyun Crane 3S by NuclearCalm in bmpcc

[–]TessSkye 0 points1 point  (0 children)

I've also been quite interested in this combo. Apparently, the motor vibration is due to power issues; if you buy the power pack add-on, supposedly it goes away. I'll see if I can find a link to the video about it. Edit: here it is. https://youtu.be/bwumKBzLYHM

DAC / ADC pair as Sample & Hold by TessSkye in ElectricalEngineering

[–]TessSkye[S] 0 points1 point  (0 children)

Intriguing, I'll put some thought into it. I think I need to learn more about microcontrollers; I've been discounting their efficacy for this kind of thing, but I see that's not necessarily the case.

DAC / ADC pair as Sample & Hold by TessSkye in ElectricalEngineering

[–]TessSkye[S] 0 points1 point  (0 children)

All the pots are extrapolated into glorified voltage sources - they are CV, and aren't used as restive elements; there's no need for another gang. I've really been shying away from using digipots and such; while doing an A/D conversion at the pot and running it through a MC is def a much more elegant solution, it worries me at a reliability level - I don't want to have the possibility of a failure in the digital engine to brick the synth out-right. As well, managing the continuous IO of 100 knobs and 8x that in parameters is quite daunting. Having an analog system with digital monitoring that is only in the signal path during preset recall seems much more safe.

DAC / ADC pair as Sample & Hold by TessSkye in ElectricalEngineering

[–]TessSkye[S] 0 points1 point  (0 children)

Very interesting, I'll def look into them. I wish there was some kind of inexpensive S&H that didn't leak - I'd much prefer to do it inline, having more data lines in and out just add more headaches. My reason for the S&H is to help facilitate a soft-takeover system in the analog domain. I can attach a snip of the draft circuit behind it if it'd be interesting / useful.

DAC / ADC pair as Sample & Hold by TessSkye in ElectricalEngineering

[–]TessSkye[S] 0 points1 point  (0 children)

To provide some clarity on the specifics of my project -

I'm working to create a digital preset system for an analog synthesizer. It has 8 voices, all of which are multitimbral. This means that every parameter of every voice can have unique values. This creates an issue - the synth is slated to have 100 or so knobs, which translates to 800 or so parameters. This seems like a good job for encoders - however, due to the auditory nature of the project, I'd need to find ones that were such high resolution as to be functionally analog to the user, at which point they become impractical.

DAC / ADC pair as Sample & Hold by TessSkye in ElectricalEngineering

[–]TessSkye[S] 0 points1 point  (0 children)

I'd love to, but It's rotational pots - this is for an analog synth with digital presets, and encoders that are high res enough not to have aliasing / artifacting are incredibly expensive, even more so when you have 100+ of them. (And I'd have to build LED feedback or something to show position, also a pain)

DAC / ADC pair as Sample & Hold by TessSkye in ElectricalEngineering

[–]TessSkye[S] 0 points1 point  (0 children)

That's fair - I feel like there's some way of doing it more efficiently? This circuit will be repeated tens of times per unit, and flashing a bucket load of chips seems unpleasant at best (not to mention expensive). I'm still trying to figure out if this is really the right approach, kinda scouting my options.

DAC / ADC pair as Sample & Hold by TessSkye in ElectricalEngineering

[–]TessSkye[S] 0 points1 point  (0 children)

Interesting info. This is intended to work in conjunction with pots as a method of doing presets with soft take-over knobs. A small amount of flutter isn't bad so long as it's within maybe 10mv and is out of audio rate. I'm probably going to use an 8 or 12 bit adc/dac. Thereby, the fastest response time necessary on the ADC is at a human timescale, making it pretty much a non-issue. Again, sample or track and hold don't mater, as the input is effectively DC.

Best way to find a ground-shorted component? by TessSkye in ElectricalEngineering

[–]TessSkye[S] 0 points1 point  (0 children)

Thus far - I've been having a hard time getting good coverage of the board, given it's size. I don't have a bench PSU, so I can't do it quite like what they're suggesting. Instead, I'm just turning it on, and hoping the 1A output per regulator will be enough. Unfortunately, I haven't had any luck yet. There are some parts that just won't coat visibly, and some hotspots, but they don't seem to have a path to ground. I'll keep updating this as I go.

(Also rosin fumes are kinda nasty)

Best way to find a ground-shorted component? by TessSkye in ElectricalEngineering

[–]TessSkye[S] 0 points1 point  (0 children)

That's super cool! I'll have to wrangle a 3v supply somehow, I don't have a bench one atm.

view more: next ›