Tri-Chorus

[EGRENIER]

I've been ask by a friend if I could build a Tri-Chorus, now I looked it up and I'm not sure what exactly is a Tri-Chorus and if there's any PedalPCB board to do that or other PCB out there I could use...

Any suggestion welcome !

 

[Bricksnbeatles]

Tri chorus is typically a chorus with two delay lines whose LFOs are 180° out of phase with each other, so you have the dry signal, and then two vibrato signals that are moving opposite each other (one raising in pitch while the other drops in pitch, and Vice versa).
There are some good trichorus FV-1 patches online, so if you have a way of flashing an eeprom, a Pythagoras board could be a good option for you!

 

[EGRENIER]

Tri chorus is typically a chorus with two delay lines whose LFOs are 180° out of phase with each other, so you have the dry signal, and then two vibrato signals that are moving opposite each other (one raising in pitch while the other drops in pitch, and Vice versa).
There are some good trichorus FV-1 patches online, so if you have a way of flashing an eeprom, a Pythagoras board could be a good option for you!

Yeah, I was afraid of that

Not quite at the point of downloading patches and doing my own eeproms....

 

[Feral Feline]

Check out the EEPROM-Builder section of PedalPCB, select some patches you like while leaving one space open and ask @PedalPCB very nicely if he'll download and install the offsite Tri-Chorus patch for you.

Doesn't hurt to ask, but he may be too busy to do it. Guy is always busy. So...

You could ask one of our fellow forumites to load the patch for you. I don't know how to program EEPROM patches, so it definitely won't be me doing it...

 

[notTHEwillienelson]

Tri chorus is typically a chorus with two delay lines whose LFOs are 180° out of phase with each other, so you have the dry signal, and then two vibrato signals that are moving opposite each other (one raising in pitch while the other drops in pitch, and Vice versa).
There are some good trichorus FV-1 patches online, so if you have a way of flashing an eeprom, a Pythagoras board could be a good option for you!

Sorry to dredge up an old thread, but I'm having trouble finding a trichorus FV-1 patch. Any chance someone could point me to a good one?

 

[jwin615]

Diamond Church Street Chorus | Home

scientificguitarist.wixsite.com

Not fv-1, 2399 based
For a tri chorus you could try modding a simple chorus patch. Duplicate the chorus twice(3 total) and get the lfos 120° out of phase of each. Then feed the 0 degree delay line a faster lfo, 2x to 4 x the 120 and 240 delay lines.
I think it's actually the 0° lfo + a faster lfo. So, the sum signal of the two. But I may be wrong about that.

 

[jwin615]

The JOYO vision has a tri chorus and is fv-1 based, so it can be done. Could buy one and rip backup the eeprom.