Modular synthesizers: Serge Creature TGO Demo

May 13, 2013 · Posted in Uncategorized 

As there didn’t seem to be too many basic demo’s of Serge modulars, ‘pjoris2’ tries here to document his discoveries of Serge. He’ll start with the most recommended “starter” M-class pannel: the Creature; and more specifically with the basic noisemaker in there: the Voltage-Controlled Timegen Oscillator (TGO). All noises are made with +/- only the TGO. X-Fader used as output, and sometimes the SSG als LFO. An overview of the video:

Basic Functions of the Left Oscillator (Osc 1)
(00:05) Saw wave output
(00:20) Square wave output
(00:30) Frequency modulation using variable CV input
(01:10) Audio-rate frequency modulation
(02:00) 1V/Oct CV input
Basic Functions of the Right Oscillator (Osc 2)
Trigger on (to the right)
(02:15) Triangular wave output with variable rise and fall
(03:00) Frequency modulation using variable CV input
(03:30) Pulse output, varying frequency and duty cycle
(04:30) Demonstrating trigger switch
Trigger off (to the left)
(04:45) Triggering Osc 2 with pulse out of Osc 1
(05:00) Depending on the relative settings of Osc 1 & 2, the frequency of Osc 2 is now controlled by Osc 1. We can vary now Rise & Fall without changing the pitch of the Osc 2 output.
(05:40) Now using the Pulse output of Osc 2: pulse width modulation.
Using Right Section as Filter
(06:00) Plug in saw of Osc 1 in the lower Sig In (black jack). The Rise pot changes filter cutoff. The Fall pot only makes signal more quiet.
(06:30) Filter cut-off modulation using the VC in of Osc 2.
(07:30) Audio-rate filter cut-off modulation
Saw of Osc 1 in Input of Osc 2 and Trigger On
(08:00) Filtering was with Trigger Off. Now see what happens with Trigger On for Osc 2. No idea what it does, but sounds interesting …
(08:40) Adding frequency modulation of Osc 2.
Feedback on Osc 2
(10:00) Feedback the output in the CV In: that way you get exponential (+ modulation) and logarithmic (- modulation) slopes
(11:00) Feedback of the output in the Sig In. No idea what this is.
(11:30) Add an LFO to the CV in. Even more noise.
(12:00) Certainly if you take the modulation into audio frequencies !
And finally: some more feedback:
(12:45) Osc 1 out in Osc 2 Sig In, Osc 1 Pulse in Osc 2 Gate in, LFO in Osc 2 CV in.

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