User Manual

Table Of Contents
THOR POLYSONIC SYNTHESIZER
(RECORD+REASON)
577
Envelope sections
There are three Envelope generators in the Voice section. These are the Amp envelope, the Filter envelope and the
Mod envelope. Each voice played has a separate envelope. There is also an additional Global Envelope which is de-
scribed separately - see“Global Envelope”.
D The Filter envelope is pre-wired to control the frequency of Filter 1 and 2.
Note that envelope control of filter frequency can be switched off in each Filter section (the Env parameter can be
set to 0), so the Filter Envelope can be used to control other parameters as well.
D The Amp Envelope is pre-wired to control the amplitude (volume).
Similarly, the Amp envelope can also be used to control other parameters, but in the Voice section you cannot
switch off or bypass the Amp Envelope - if no voice is active (i.e. if there is no gate trigger input to the Amp enve-
lope) there will be no output from oscillators or any external audio source routed to the Voice section.
D The Mod Envelope can be freely assigned to control parameters.
This is done in the Modulation section.
Filter Envelope
The Filter Envelope is a standard ADSR envelope as used in the Subtractor.
D By setting up a filter envelope you control the how the filter frequency or some other parameter should change
over time with the four parameters, Attack, Decay, Sustain and Release.
Please refer to the Subtractor chapter for a description of these parameters.
D The “Gate Trig” button can be used to switch off the envelope triggering from notes (which is the normal
mode) and allow the envelope to be triggered by some other parameter.
“Gate Trig” should normally be activated.
D The time ranges of each step are as follows:
Attack: 0 ms - 10,3 s / Decay and Release: 3 ms - 29,6 s. Sustain is not set as a time but as a level (from Off to
0dB).