Search found 13 matches

by dslocum
Fri Oct 20, 2017 3:12 pm
Forum: FV-1 software questions
Topic: Zero Crossing
Replies: 1
Views: 2713

Zero Crossing

Sorry if this may has been asked before. If I want to reduce noise by only performing a function at zero crossing, my understanding is that I use SKP ZRO. I'm assuming that the value in the ACC must be exactly ZERO for this to work. Thus during sampling, I might get a value that is not EXACTLY zero ...
by dslocum
Fri Oct 20, 2017 1:31 pm
Forum: Algorithm development
Topic: New Phaser code
Replies: 7
Views: 8619

I actually have very little idea what you are referring to, as I really don't have the Spin chops yet, and may never.. But I'm happy to have the "experts" chime in and help me learn. And if it helps someone else, that's good too.!!!
by dslocum
Fri Oct 20, 2017 5:34 am
Forum: Algorithm development
Topic: New Phaser code
Replies: 7
Views: 8619

New Phaser code

Hey guys, I've been working on an enhanced version of the GT_DEMO Phaser code. I really don't know DSP and this is the first program I've done for the FV-1. I just beat / hacked it into submission, not really knowing what I was doing. I’ve now got a great sounding phaser with LFO, Depth / Manual, ...
by dslocum
Thu Aug 03, 2017 1:43 pm
Forum: FV-1 software questions
Topic: Read Spin Dev board EEPROM?
Replies: 2
Views: 5375

MacroMachines wrote: check the dj effects infinite reverb/pitch to zero/filter:
http://www.spinsemi.com/get_spn.php?spn ... um=SPN1001
Cool. Thanks. That was it!
by dslocum
Mon Jun 26, 2017 9:45 am
Forum: FV-1 software questions
Topic: Project folders in Spin IDE
Replies: 7
Views: 11295

Not meaning to hijack the thread, but on a similar note, I am just trying to write HEX files using Spin ASM. Nothing works. I can't even see the SPN files I've created.

I'm in Windows 10. Can anyone point me to a good thread for help? I want to create a ROM with a combination of SPN and SpinCAD.
by dslocum
Mon May 08, 2017 12:43 pm
Forum: FV-1 software questions
Topic: I want to license cool Synth related Spin programs
Replies: 0
Views: 26834

I want to license cool Synth related Spin programs

The title says it all I think. I'm looking at producing a 2 MU (Syntheizers.com) wide module with 2 x 16 LCD display. I want to fill up at least one EEPROM if not two. If you have something you think might work for my upcoming product, I'd love to hear from you and try it out. Should be STRONGLY syn...
by dslocum
Fri Mar 03, 2017 6:58 am
Forum: FV-1 hardware questions
Topic: Clip output to CPU interface
Replies: 1
Views: 3411

Clip output to CPU interface

I'm interfacing a CPU with a LCD to the FV1. I would like to use the CLIP output pin into a CPU input - maybe an interrupt on change input so that the LCD displays the clip event rather than a hardware LED. Is the CLIP output a standard open drain output? Should I pull up with something like a 10K? ...
by dslocum
Fri Sep 23, 2016 12:14 pm
Forum: FV-1 software questions
Topic: Read Spin Dev board EEPROM?
Replies: 2
Views: 5375

Read Spin Dev board EEPROM?

I was playing with the Spin dev board and trying different algorithms a few months ago and had to put it away for more urgent matters. I brought it back out a couple days ago and by happy accident found a really cool program on one of the external EEPROM banks. I don't recall how it got there or whe...
by dslocum
Tue Jun 19, 2012 3:58 pm
Forum: FV-1 software questions
Topic: Pitch shift w/o the delay?
Replies: 3
Views: 7278

Pitch shift w/o the delay?

Is it possible to get a pitch shifter without the delay in the demo software? Or at least minimize the delay significantly?

And a follow-on to that... Is it possible to reduce the slight pulsing effect with or without the delay?

Thanks

Doug
by dslocum
Tue Jun 05, 2012 4:01 pm
Forum: Algorithm development
Topic: Though-Zero Flanger
Replies: 1
Views: 4955

Though-Zero Flanger

Is it possible to do TZ flanging by delaying the original slightly, and then applying the delay to the aux signal to go thru zero?

Maybe this has already been addressed. Please forward a link if so.

Thanks

Doug
by dslocum
Tue Jun 05, 2012 3:55 pm
Forum: Algorithm development
Topic: Min / Max delay times
Replies: 1
Views: 4828

Min / Max delay times

Probably covered 1000+ times, but search finds too many results. What are the min & max delay times? Probably a question that will need further input, but as a newb, I'm seriously trying to learn. Can I do delays in the upper microsecond range? (That's one project) Is there enough memory to go t...
by dslocum
Mon Jun 04, 2012 7:10 am
Forum: Algorithm development
Topic: Is Karplus–Strong possible?
Replies: 4
Views: 7224

Thanks. I should have been more clear. I didn't mean tracking the audio from a keyboard. I was thinking of using the CV inputs with an analog synth keyboard that puts out 1 V / Octave. Does the ADC have enough resolution and accuracy for that? I seem to recall that there were some exponential functi...
by dslocum
Mon May 21, 2012 10:09 am
Forum: Algorithm development
Topic: Is Karplus–Strong possible?
Replies: 4
Views: 7224

Is Karplus–Strong possible?

Is it possible to do a Karplus–Strong algorithm that tracks an analog keyboard? I want to play with physical modeling.