Yeah the dervish and the mxmxmx
https://github.com/mxmxmx/spinFV1/wiki
Search found 71 matches
- Thu Feb 08, 2018 8:32 am
- Forum: FV-1 hardware questions
- Topic: DIY Eurorack for FV1
- Replies: 4
- Views: 6748
- Sun Feb 19, 2017 10:08 am
- Forum: FV-1 hardware questions
- Topic: Isolating digital noise from micro controller based clocking
- Replies: 4
- Views: 6274
Good ground is very important. You can get away with a single ground plane but you must watch for ground loop and path issues. Any trace should have solid ground below it, do not run a trace over a break in the ground plane. Keep traces short and straight as possible, if you have traces on 2 layers...
- Mon Feb 13, 2017 11:39 pm
- Forum: FV-1 hardware questions
- Topic: Isolating digital noise from micro controller based clocking
- Replies: 4
- Views: 6274
Isolating digital noise from micro controller based clocking
We have a design making use of a micro controller for the FV-1 clock input, and have encountered some digital noise artifacts. I am wondering if there are any good resources as to the best method for addressing this. I have been reading a bit on digital / analog ground splitting which seems relevant...
- Sat Feb 11, 2017 4:03 am
- Forum: FV-1 hardware questions
- Topic: NAMM 2017
- Replies: 41
- Views: 67041
Ok cool :) maybe it will come together in time for a mark2 or second tier product line in a year and a half or so, that would be rad. Ive been getting some very interesting things with the FV-1, I think I have found some useful techniques. I would like to put forth a couple suggestions here if I may...
- Fri Feb 10, 2017 8:14 am
- Forum: FV-1 hardware questions
- Topic: NAMM 2017
- Replies: 41
- Views: 67041
- Thu Jan 19, 2017 6:32 am
- Forum: FV-1 hardware questions
- Topic: Using a microcontroller to clock the FV-1?
- Replies: 3
- Views: 7526
Re: Using a microcontroller to clock the FV-1?
Hi all, Has anyone used a microcontroller to send a clock signal to the FV-1? Is this doable with something like an ATMega328? Thanks, Sean Costello A collaborator and I have been exploring this for using the FV-1 as an oscillator / physical model. It appears to work quite well. Also, big fan ;D yo...
- Thu Jan 19, 2017 12:39 am
- Forum: Algorithm development
- Topic: Log taper for audio
- Replies: 5
- Views: 7858
https://www.desmos.com/calculator/9plru2sovy I LOVE DESMOS!! I discovered it a few weeks ago and have been making prolific number of graphs. Im stoked to see another DSP lover using it to great effect! good work! Got any other useful DSP graphs? Id be happy share mine, in fact right now I might mak...
- Tue Dec 06, 2016 11:02 pm
- Forum: Algorithm development
- Topic: Any thoughts on implementing an "infinite hold" ef
- Replies: 42
- Views: 71622
Ive also been playing with a combination of the tap tempo/ flip flop code in other threads to create a zero crossing repeater. I would love to figure out a way to have start and end points of a loop able to snap to the nearest zero cross, but its a bit tricky. This would be good for both pitch shift...
- Sun Nov 27, 2016 3:56 am
- Forum: Algorithm development
- Topic: Trying to make really long exponential decay
- Replies: 5
- Views: 8105
I was able to make a very long counter using: equ counter reg0 or %00000000_00000000_00001000 ; add the increment to count upwards towards zero rdax counter, 1.0 wrax counter, 1.0 skp gez, reset skp run, output reset: ; reset counter to -1 sof 0, -1.0 wrax counter, 1.0 output: ldax counter wrax dacl...
- Mon Nov 21, 2016 2:41 pm
- Forum: FV-1 software questions
- Topic: PACC clarification
- Replies: 5
- Views: 10402
- Mon Nov 21, 2016 12:11 pm
- Forum: FV-1 software questions
- Topic: Read Spin Dev board EEPROM?
- Replies: 2
- Views: 5615
http://www.spinsemi.com/programs.php http://www.spinsemi.com/mixer_application.html http://www.spinsemi.com/guitar_amp_application.html Maybe one of those? Or could be something you downloaded from the forum? Not much to go on. check the dj effects infinite reverb/pitch to zero/filter: http://www.sp...
- Sun Aug 21, 2016 6:36 pm
- Forum: Algorithm development
- Topic: tanH soft clipping
- Replies: 6
- Views: 11879
Wow! thank you so much :D so I guess you divided the two by using log -1, -.125 and exp 1, 0 ? LDAX B LOG -1.0,-0.125 EXP 1,0 MULX A Wow thank you!! Ok, so now I understand the spin knowledge base bit on 1/x.. I am a bit math-tarded so I had forgotten that 1/x was what I need in this workflow for mo...
- Sat Aug 20, 2016 11:42 am
- Forum: Algorithm development
- Topic: tanH soft clipping
- Replies: 6
- Views: 11879
EXP( LOG(X) - LOG(Y) ) = X/Y. rereading the knowledge base on log/exp for the 5th time I think Im getting it now that I have an incentive EXP( LOG(X) + LOG(Y) ) = X*Y. Further, numbers could be divided: EXP( LOG(X) - LOG(Y) ) = X/Y. Finally, any number can be raised to any power with the use of LOG ...
- Sat Aug 20, 2016 11:15 am
- Forum: Algorithm development
- Topic: tanH soft clipping
- Replies: 6
- Views: 11879
from: https://varietyofsound.wordpress.com/2011/02/14/efficient-tanh-computation-using-lamberts-continued-fraction/ x2 = x * x a := x·(135135 + x2·(17325 + x2·(378 + x2))) b := 135135 + x2·(62370 + x2·(3150 + 28·x2)) tanh(x) = a/b dividing each by 135135 a := x·(1 + x2·(0.1282051282 + x2·(...
- Sat Aug 20, 2016 10:09 am
- Forum: Algorithm development
- Topic: tanH soft clipping
- Replies: 6
- Views: 11879
http://www.musicdsp.org/showone.php?id=238: This is a rational function to approximate a tanh-like soft clipper. It is based on the pade-approximation of the tanh function with tweaked coefficients. The function is in the range x=-3..3 and outputs the range y=-1..1. Beyond this range the output must...