Hi bg
What I can say is that RM in CS-80 IS mono : well the fact is the signal path from VCO to VCA was mono on CS-80, therefore even the ring was mono, it is surely like this because I have a waveform analysis of a modulated signal somewhere and it displays as mono ( well, double mono ) . I heard back what I called a pan modulation on CS-80V 1.5 ( an AM phased 180 degrees between left and right channel ) , but I suppose this is a ∗bug∗ likely because this doesn't happen all the time into my synth; I explained this thing to Xavier but I seem not to understand very well what he said...here's his speech :
(quote)
The problem with the Multimode is the Pan possibility AND the
enable/desable Rm/EFX for each voice.
I can't do a correct routing with only one ringMod ( the dry keeping the
pan setting). I try with the last version, but I encoured lot of problem
when adding chorus, tremolo and delay !
But you're right, the problem is that there are two independants
RingMods, in place of a double mono one with the same sinewave modulator.
I can do it without to much changing my code. It's the same for reducing
the sine wave
(end quote)
Xavier seems to say there is a double ringmodulator controlled by the same controls ...this may be at the root of an occasional phasing between the two modulations ( one for each channel ).My only fear is that if Xavier tries to kick a stereo signal into a mono ringmodulator he must end forcing it into one single input ( the "carrier" one which will be mixed with the modulator's sine VCO ) having a phased signal as a result and getting back that awful phasing at low MOD rates....
Cheers
Max
----- Original Message -----
Sent: Tuesday, June 21, 2005 9:06 PM
Subject: [yamahacs80] CS-80 ring modulator
I've been discussing the sound of the CS-80 ring modulator on the
CS-80V group, and I wanted to ask for your insight here. Listening to
Richard Lawson's demo,
http://www.rlmusic.co.uk/mals_site/mp3s/cs80_700.mp3
it sounds like the CS-80 RM is mono. i.e. the ring modulation between
:09 and 0:19 doesn't pan back and forth. What's confusing is I found
another CS-80 RM example in which the RM sound definitely moves back
and forth in the stereo field.
http://personal.inet.fi/private/matador/cs-80_user_ringmod.mp3
What am I hearing? Is it because chorus is on (not sure if it is),
and the RM is subject to the stereo chorus? Thanks for any help in
better understanding the original.