guitar to synth - the saga continues

[egasimus]

Actually, there's nothing interesting here. Just asking for opinions on this circuit:

http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%20and%20Misc%20Signal%20Shapers/Guitar%20to%20synth%20interface.pdf

[thedefog]

I can't imagine the tracking would be very good on this, and it would probably be a pain to scale properly. You'd probably be better of using one of those Sonnus g2m $100 deals and a well calibrated midi-cv converter if you don't already own one.

[slacker]

It's got nothing in it to prevent it locking on to harmonics instead of the fundamental frequency, so the tracking isn't going to be great, and that's before you start to try and do the F to V conversion. If you want a CV that roughly tracks the input frequency to control filters or whatever it will probably do a reasonable job, and the gate and trigger bits will work fine, but I doubt it's anywhere near good enough for making a VCO play the same note as the guitar.

Those Sonnus things do look tempting.

[Mark Hammer]

I've etched and populated two of those boards and never finished wiring them up.  Maybe I ought to finally do that and see if slacker's right.

[slacker]

That would be great Mark. It would be brilliant if it was as accurate as it says, it just seems a bit too good to be true.

EDIT: looks like I was wrong there's a big thread about the circuit here http://electro-music.com/forum/viewtopic.php?t=14921&postorder=asc&start=50&sid=9837ed3ad93e40b3b72a43406455fe23 seems like it works pretty well. There's some soundclips on page 3.

Mr Giles gets in his usual comments about the EHX guitar synth

[egasimus]

Well, I'm impressed. Although it's still too inaccurate to be usable IMO... Do you think using high quality passive components, such as box film caps and metal film 1% resistors, would help any?

[Mark Hammer]

Well, I'm impressed. Although it's still too inaccurate to be usable IMO... Do you think using high quality passive components, such as box film caps and metal film 1% resistors, would help any?

No.  The weakest link in something like this will ALWAYS be the picking.  Guitar string behaviour is quite simply antithetical to such a task; at least in the analog world.  Digital is another matter entirely.

Have any of you folks ever seen a schematic for the Gentle Electric P-2-V?  I was always curious about that one.

[EATyourGuitar]

you might think im trolling but honestly I dont think midi and guitar are ever going to be perfect.
check out this midi controller that plays like a real guitar. its not just a toy.




http://www.yourockguitar.com/products/you-rock-guitar