Spin Semiconductor

I have not worked on this in a while. First, I switched to a delay-based approach so avoid tracking issues and the single-note limitation. Seancostello's suggestion earlier in this thread is the most promising approach. Second, Electro-Harmonix came out with the Freeze. This is exactly the effect th...

Keep in mind that unlike a conventional processor, there is no advantage to skipping instructions in terms of processing time. You still only get 128 program steps, whether they are executed or not. So you can go ahead and do the processing, then just choose to use it or not. I think this is what Fr...

It is really great to hear that there are some commercial customers that you are working with. To be honest, I was getting a little worried that the FV-1 might not reach the "critical mass" needed for long-term support and future development. I saw what happened to the Line6/Freescale peda...

So Frank, I thought you would be pretty interested in this, since people (including me) have complained about the pot lag for a long time. It might be good for others to hear that this idea makes some sense. BTW, I hope people are still interested in the FV-1. There hasn't been much activity on the ...

I have been thinking about this issue for awhile, and I think I have a slick and simple solution to the pot speed issue. This should make a pot input usable for an expression pedal, for example. All that is needed is to counteract the action of the slow lowpass filter on the pot with a shelving high...

For what it is worth, I would do the following before changing anything else: 1) Re-solder every connection on the entire board. I always use tin-lead solder for prototypes to get good flow. 2) Clean the entire board with alcohol to remove all of the flux. Make sure you get under the chip and any ot...

Weird. I don't know how I got the assembler without the driver on a clean install. I uninstalled and downloaded again and Norton Antivirus blocked it. I un-quarantined it and ran it, and everything came in and worked correctly. Thanks for the super-fast response. A plug for the FV-1. To any lurkers ...

Hey Frank.

I have a new computer with Window & 64-bit. I installed the assembler on it with no problem. It assembles, but it doesn't see the dev board. It said that a driver was not found when I plugged into the USB.

Please don't say that you only support Windows 7 32-bit!

Thanks,
Don

Hey Frank. You guys have posted a lot of source code for the FV-1 on the site. This is a huge help for getting people jumpstarted. This is especially true for reverb, which is quite complicated and a bit of a black art. I know you have no problem with people selling the OCT modules with their associ...

Yes, I actually have something I am almost happy with. It is pretty convoluted, though. The idea is to use a few short ramps after a note trigger to capture the transient with as little delay as possible, and then revert to the standard long ramp transpose algorithm after that. Since it is not possi...

Thanks B.C. Sorry, I should have been more clear. I got the dev board from OCT as well. (Funny that the OCT website doesn't list all products - only the one effects module.) Now I am looking for alternatives for some in-form-factor protos (guitar stomp boxes). The dev board is overkill for this - pr...

Is there any provision for customer programming of the OCT Effects Module SKRM-C8? I notice that the EEPROM is SMT, not a socketed DIP. Are the I2C lines available on a header or test points? Is the write protect line tied high or low? Does OCT sell the GA_DEMO board, which has the pots and selector...

What I posted was meant to be an outline of the algorithm in computer-english (pseudocode, as we call it in the biz). You need to flesh it out to FV-1 code, so it looks like: ; This example code delays an input by eight seconds. ; It inteleaves the signal 8 ways in a single max sized delay equ input...

I think it is just an extrapolation to a FOR-NEXT or DO-WHILE-type loop. You have to think about how the FV-1 runs through code on each pass: IF loop counter variable is 0, THEN read an input sample and put it in the temp variable. Put the temp variable in the head-end of the delay. Get a delayed sa...

What I was proposing was switches to enable or disable steps in the arpeggio sequence, like on many synths. Then you could have a pot-skip routine to select the arpeggio pattern (ascending, descending, up/down) and for the intervals(scales, chords, etc.) This alternative would not give you the abili...