#310

What script is that? Hard to see, but real pretty!

#311

Thanks @atomboyd!

It’s a midi-note recorder work-in-progress. The Arc controls an adjustable window that optionally constrains playback and overdubbing to a range within the original full loop. At the moment it just records triggers and note values (i.e. not gates . . . that’s a longer range goal).

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#312

Very cool, can’t wait to try it out… do you ever have issues of norns restarted when arc and grid are both plugged in?

It’s happened a few times, but not consistently, still pretty new to Arc land though.

#313

I’ve crashed the norns / grid / arc combo due to coding errors and during some high-frequency grid/arc updating situations (< 0.001 s step sizes), but I haven’t 1) purposefully stress tested the set up to try and identify specific update limits for this code or 2) attempted code optimization yet.

I haven’t had norns spontaneously restart, either w/grid/arc or other operation.

#314

:scream:

way too fast. this isn’t a norns bottleneck (unless you were also trying to draw screen or send OSC or something) but a serial port and grid/arc firmware bottleneck.

serial port bandwidth is ~100kb/s
each LED is 4 bits

#315

Thanks @zebra! The numbers help (I think) explain some of the intermittent gremlins I’ve seen. Should I interpret a grid:refresh as 128x4=512 bits in all cases, or does it matter how many LEDs are changing state? Would the ~100kb/s translate directly to some kind of per step burst limit?

Atm, I’m running at 0.01 s base step size with a range of 0.0025-0.03 s to change playback speed and it is running stable with grid/arc during playback, but I am getting the occasional (but unrepeatable) gremlin at 0.0025 s when there is also input on arc or grid.

#316

Grid refresh is actually getting data sent for 256 leds every frame

See https://monome.org/docs/serial.txt and look for prefix/led/level/map

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#317

Help! I just ran update from the menu item, now after it said complete ,the screen seems to be unresponsive, if i reset then power up, grid sparkles, but nothing on the norns screen… any ideas?

I can connect to maiden, but matron and sc both say they cant connect

edit: serial/manual update fixed it

#319

Just loaded up @zebra’s crown script again and it is the first time I realised that there seems to be some kind of grid function programmed to it but I am unsure what the grid actually does… It seems to capture the softcut buffer somehow?
But maybe it is supposed to remain a mystery since the script is also not in the community catalog. Still curious…

#320

it sets rates, levels, positions and feedback parameters for 4 softcut voices

i should tidy up / document ‘crowns’ and add it to community repo. main thing that bugs me (trivial) is the lack of a proper audio taper for sine levels.

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#321

Thanks a lot for your reply, it would be cool to have this script in the community catalog for sure. I really like it a lot like it is, would be cool to be able to map the parameters to external controls (yeah, I should really spend some time trying to learn these things, I know…) but I will check out the grid stuff again. Thanks!

#322

i would really love this! crowns is one of favorite scripts

one thing i’ve always wondered is the input pitch tracking fully implemented? or is that just the beginning of that idea in the code?

#323

Pitch tracking should work, is central

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#324

wow i finally figured it out last night :upside_down_face:
great stuff

#325

Ok, I opened the grid cut lua and now it starts to make sense as in “wow, there is another weird world of niceness hiding in that script”…

From the script notes (“note to self”):
top 4 rows: draw current rate index for each voice

bottom 4 rows:
1st column: level
3rd column: freeze
columns 5-8: feed

I am unsure about the feed implementation of 5-8, should there be different divisions or is it % of feedback?

#326

How does one enable pitch tracking?

#327

polllllllls :slight_smile:
study 5 has it all! https://monome.org/docs/norns/study-5/

#328

the feed implementation of 5-8

each key in the 4x4 square of columns [5, 8] and rows [5, 8], toggles feedback between the corresponding pair of softcut voices [1, 4]. rows correspond to source voices, and columns to destination voices.

this line defines the “on” amount, which 0.125 (-18 dB), so pretty mild really. it could be changed or parameterized, or parameterized for each patch point. (this script kinda predates the parameter system.) IIRC i chose the level such that it would not definitely blow things up even with all the feedback points enabled.
[ https://github.com/catfact/zebra/blob/master/lib/grid_cut.lua#L54 ]

any of this could be broken.

holding down K1 puts you in pitch-grabbing mode. in this mode, selecting an oscillator with E2 will also assign the current input pitch to the fundamental frequency of that oscillator. (pitch ratio for that oscillator still applies.)

so you can (for example) hold down K1 and sort of scrub through all the oscs to make a strange kind of stereoized additive synth thing.

at least this is how i remember it working, don’t have norns in front of me atm.

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#329

Thanks so much for sharing, this is great.

#330

I’m learning norns today. On study 2.

46imzl

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