I looked at this on an oscilloscope to confirm, and to answer another
question I had about the combination of the IN and TRIG IN jacks.
The DSG will process bipolar signals at the IN jack. These are seen as
bipolar signals on the normal OUTPUT jack.
If you use the TRIG IN, it outputs a positive only signal on the OUTPUT
jack.
If you use both IN and TRIG IN, the normal trigger output is superimposed on
the slewed IN signal output when greater than the slewed IN output.
I have 1994 era DSGs, so I don't have the bipolar output, but I assume this
just inverts and shifts the normal OUTPUT signal so that it is bipolar
(centered around zero), typically for use as an LFO and maintain the nominal
frequency setting of the modulation destination, VCO, VCF, etc.
FYI, SINE and VARIABLE outputs on NTOs are bipolar, while the triangle and
sawtooth are unipolar or positive only.
John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com
question I had about the combination of the IN and TRIG IN jacks.
The DSG will process bipolar signals at the IN jack. These are seen as
bipolar signals on the normal OUTPUT jack.
If you use the TRIG IN, it outputs a positive only signal on the OUTPUT
jack.
If you use both IN and TRIG IN, the normal trigger output is superimposed on
the slewed IN signal output when greater than the slewed IN output.
I have 1994 era DSGs, so I don't have the bipolar output, but I assume this
just inverts and shifts the normal OUTPUT signal so that it is bipolar
(centered around zero), typically for use as an LFO and maintain the nominal
frequency setting of the modulation destination, VCO, VCF, etc.
FYI, SINE and VARIABLE outputs on NTOs are bipolar, while the triangle and
sawtooth are unipolar or positive only.
John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com