Hi, the best group, what I have seen...
i like one filter as well. I got used on reaction of filter EG over
all voices.
Anyway i wanted split sound to filtered/unfiltered components. It is
possible by leading e.g. SIG2 from pin20 of NJM-2069 to new output
jack. Then you can process this voice indipendently.
But I did it by different way - I passed filter and connected SIG2
(pin20) to 2069 output (pin6). Of course, it caused (nice) feedback,
controllable by cutoff knob. If I inserted little capacitor (around
10pF) between pin20 - pin6, i got sound without feedback. Nice side
effect of this modification was Prodigy-like distortion, when i
turned volume higher.
Regarding of dw-8000 I found this
(
http://us.geocities.com/diffused_light/stuff/dw8000.html):
"Internally there are 3 main boards- the digital board, the analog
board, and the delay board. The digital board has the CPU circuits
and the oscillators. The CPU is a Hitachi HD63B03X. The "DWGS"
oscillator system is made up of 8-bit waveforms (multisampled by the
octave as far as I can tell) stored in 4 256Kbit ROM chips, with two
custom chips to generate the audio signals from there. The DAC is a
DAC08, and the output of that is split into 16 separate signals by a
demultiplexer. There's another 8-bit DAC, an HA17008, for CVs. From
there it goes through NJM2069AD voltage controlled mixer / filter /
amplifier chips (which have unusued 2-pole filter outputs) on the
analog board, then to the delay board, and out. The delay is a 12-bit
companded delay with a VCO-based clock and 16KB of RAM (If I'm
correct with my math, this means that at maximum delay time, the
delay sample rate is only 10667 Hz!). A custom chip, the 65010CW-113,
controls everything."