Bowery: a crow collection

desolationjones · 2020-07-17T18:11:49.095Z

The quantizer script should probably be updated for crow 2.0 now that output scale mode is a thing. You could probably do this script in 10 lines.

I think the offending function here is n2v, which never worked for me. n2v(x) is pretty much equivalent to x / 12 if you want to edit it.

Oootini · 2020-07-17T18:14:26.931Z

Try this one: Maps w/ Trent <> 7/16 4PM EDT

lcsp · 2020-07-17T23:02:31.594Z

I can confirm that the quantizer in the Bowery collection does not work and does indeed only provide octaves of the original voltage. I tried multiple variations and changed many things in the code - I’m not a coder, but some parts are obvious - so you may just stop trying with that version.

BTW, that was just before 2.0, but I bet it’s still the same now.

And @desolationjones and @Oootini are right!

Gexex · 2020-07-17T23:15:12.834Z

i attempted to import lorenz onto a newly flashed (well, new altogether) crow and druid was freezing while uploading. the only way i could ‘unfreeze’ druid was to remove and reinsert the usb cable. i couldn’t successfully load it, though i had no issue with the other bowery scripts. does it not work in 2.0 or is it an issue on my side?

~~perhaps i should note that i manually added the script to my bowery folder (didn’t appear in the zip i downloaded). working from an old macbook air, catalina 10.15.4, if it matters.~~

resolved. the issue was with the lua file I downloaded. fixed it in atom.
lorenz is so much fun!

eblomquist · 2020-07-19T20:22:03.706Z

Galapagoose:

Also, I’ll add First.lua to bowery as well, so it’s collected in the same place.

Wondering if this ever got added to Bowery. I don’t see it there, and I’m trying to get it loaded back onto Crow… Perhaps I’m missing something. I tried u First.lua, but I’m cd’d into bowery-main

thanks!

csboling · 2020-07-19T20:23:58.959Z

First is included in crow’s core Lua library and can always be restored by sending ^^First in druid (or crow.send('^^First') should work from norns).

Kohlhofer · 2020-07-25T02:38:32.876Z

Hey there, when I first saw Crow (after the first batch was long gone) I had an idea to make a spring physic based sequencer. I made a quick POC in JS: https://codepen.io/kohlhofer/pen/ZEQXEKZ

Now that I finally have one I managed to port it to Lua. I first had it clocked but found it work best continuously and in combination with an external quantizer. Love to hear your thoughts. Quick video and script below. It is easy to make much more musical results, too

github.com

kohlhofer/bowery/blob/spring/spring.lua

--- Springs
-- a spring physics based voltage follower
-- input 1+2: voltages that outs 1/2 and 2/4 will follow.
-- output 1/2 will follow input 1 
-- output 3/4 will follow input 2 (the first pair is more volatile)
-- For best results don't attentuate the input but the outputs. Bigger or faster changes put more energy into the system and create more pronounced effects. Try using a quantizer to drive two related melodies.



-- settings
scale = false -- outputs are continous (not quantized). Try {0,2,3,5,7,9,10} instead.
rate = 0.05 -- sets the refresh rate for the springs' state calculation. This has a drastic effect and is callibrate to the default set of variables for the springs.

function init()
    -- initialize the 4 springs with dedicated settings for gravity, spring constant, mass, and dampening
    springA = Spring:new(0,0.5,2,0.92)
    springB = Spring:new(0,0.01,5,0.97)
    springC = Spring:new(0,0.7,1,0.90)
    springD = Spring:new(0,0.03,5,0.92)

This file has been truncated. show original

desolationjones · 2020-07-26T21:24:13.813Z

It looks great! Can it go “BWOI-OING” if you “flick it” with an impulse?

And what does it mean when you say that the springs follow the input voltages? E.g. is the force upon the spring end proportional to the distance from the input value?

Kohlhofer · 2020-07-26T21:46:09.831Z

It does go booooingg.

The spring’s rest length is 0. One end is attached to the input and one to the output. From there it behaves as you would expect when you move the input :). The output has mass, there is friction/dampening and you can turn on gravity which means the output will “dangle” down.

Each of the 4 springs has its own set of variables.