46
Envelope number
This device displays the number of the selected envelope from the current
sound set (1). The envelope parameters and filter associated with this
envelope are displayed and may be edited. You can change the current
envelope number at any time using
Z
and
X
. It is also included on the
‘circuit’ and may be changed with
Q
and
W
; the normal editing keys (see
‘Creating sounds-a quick guide’).
When changing the envelope number all the parameters are updated
including the filter. The new sound will be heard when
*
is pressed. Chang-
ing the envelope number itself has no effect on the sequencer. However,
the filter stored with that envelope will become the new global filter and may
therefore affect voices which have filter selected (see ‘The Sequencer’).
Waveform
The next device on the circuit displays the selected waveform icon and
letter for the current envelope.
The waveform governs the timbre or frequency spectrum of the sound.
Triangular waveforms tend to give rather mellow sounds, sawtooth waves
provide brass and string sounds, and noise waveform, the percussive
sounds like a cymbal. The pulse waveform is perhaps the most interesting
since you can vary the proportion of the different harmonics by changing
the pulse width. If pulse width is selected the pulse width device is displayed
alongside. This is then included in the circuit.
10
Z
X
<>
Envelope
P
S
T
N
Triangle
Saw
Pulse
Noise
