Dual pitch shifter into resonant filter

by **cloudscapes** » Fri Aug 28, 2015 12:42 pm

..sounds so fucking amazing! Just sayin'

WIP

by **D.o.S.** » Fri Aug 28, 2015 12:45 pm

Clips?

by **Chankgeez** » Fri Aug 28, 2015 1:01 pm

by **cloudscapes** » Fri Aug 28, 2015 1:02 pm

D.o.S. wrote:Clips?

Soon.

by **cloudscapes** » Fri Aug 28, 2015 1:07 pm

PS, this is heavily inspired by the earthquaker pitch bay. I did away with the overdrive knob and put in a resonant filter instead. and I have relay bypass. those are probably the only differences, since I know earthquaker also use the FV-1 chip. I'm not gonna claim this is in any way original!

by **Teej212** » Fri Aug 28, 2015 1:28 pm

Yes cloudscapes getting into the fv1 game!!!! Can't wait to see what you come up with. How are you doing separate mix for each of the voices?

by **cloudscapes** » Fri Aug 28, 2015 1:35 pm

mixing of each of the voices (2 pitch and 1 dry) is just analog. the fv1 just outputs each pitch shifter seperately on the two ouputs, so I can mix them analogly. I'll try to do clips tonight. the resonant filter makes -1 octave sound immense! this is probably gonna repalce my micro pog. it's no match to the bass I can get out of this project!

so far, I have mixed opinions about the fv1. on one hand, it's dead simple to get a project running. last saturday I didn't even know I was gonna do this, and 6 days later I've already finished prototyping, and designed and ordered the pcb. doing this the old way with microcontrollers would have taken much longer, and been more complicated.

on the other hand, I feel limited by the fv1's capabilities already. it only has 3 pot inputs which I think prevents it from being truly great. and it won't beat a good 32bit micro in processing power or in flexibility.

I think I'll turn to the fv1 if I'm doing reverb or pitch stuff. but for delay, looping, ringmods, bitcrushers, glitchers and noise makers in general still think a 32bit micro is better in flexibility. even if it is much harder to use.

by **goroth** » Fri Aug 28, 2015 2:14 pm

I find pitch shifting on the fv-1 to be far too laggy. Never played a pog, but it seems to have less lag... ???

by **cloudscapes** » Fri Aug 28, 2015 2:19 pm

can't speak for the pog, but the micro pog has the tinsiest bit less lag, yes. and it's a lot cleaner sounding. the DSPs in the pogs/hogs are much more powerful than the fv1, so they can do a better job of pitch shifting.

but the micro pog doesn't do semitones. it's a worthy tradeoff as far as I'm concerned.

by **goroth** » Fri Aug 28, 2015 3:34 pm

Interesting! Resonant filters are awesome!

by **Eric!** » Fri Aug 28, 2015 10:04 pm

THIS what I'm talkin bout.

by **cloudscapes** » Thu Sep 17, 2015 9:38 am

finished the enclosure and populated the PCB. guess I'll be assembling the whole thing tonight!

by **cloudscapes** » Thu Sep 17, 2015 9:42 am

things I could have done better:

1. Run the relay microcontroller at 3v instead of 5, requiring only one regulator, not two. But that would have required a different relay I wasn't familiar with, and I was in a hurry to finish the design.

2. Both the relay microcontroller and the DSP EEPROM could have been SMD to save space, instead of socketed DIP, but that would have required me to have some programming headers for both. Again, laziness.

by **UglyCasanova** » Thu Sep 17, 2015 10:09 am

Beautiful artwork. Looking forward to hearing it :thumb:

by **cloudscapes** » Thu Sep 17, 2015 1:43 pm

I'll do video tonight if it's actually working without hitches!

Dual pitch shifter into resonant filter

Dual pitch shifter into resonant filter

Re: Dual pitch shifter into resonant filter

Re: Dual pitch shifter into resonant filter

Re: Dual pitch shifter into resonant filter

Re: Dual pitch shifter into resonant filter

Re: Dual pitch shifter into resonant filter

Re: Dual pitch shifter into resonant filter

Re: Dual pitch shifter into resonant filter

Re: Dual pitch shifter into resonant filter

Re: Dual pitch shifter into resonant filter

Re: Dual pitch shifter into resonant filter

Re: Dual pitch shifter into resonant filter

Re: Dual pitch shifter into resonant filter

Re: Dual pitch shifter into resonant filter

Re: Dual pitch shifter into resonant filter

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