ISLA Instruments S2400 User Manual
– 26 –
Envelope Fader Mode
Every track has two HiFi envelopes, and, optionally, a Classic volume envelope. The type of
volume envelope for a track can be set in track settings (Shift+Pad), or in Track Envelope
Settings (Shift+A in envelope fader mode). The descriptions below assume that the machine is in
envelope fader mode.
Classic Volume Envelope
A Classic volume envelope has two-stages: a sustain time at maximum volume, followed by a
release time. Both values are fixed times for each of the 32 envelope settings. When a Classic
envelope is set to maximum, then there is no volume envelope at all. This accurately duplicates
the functionality and sound of the Classic machine, including the 8-bit aliased release. The slider
selects the classic envelope length, and the knobs do nothing. On the screen, a classic envelope
is indicated with the same line and dash style of display used for other fader modes.
HiFi Volume Envelope
When HiFi Volume Envelope is selected, envelope 1 controls the volume of the sample. The
slider controls the release and the top knob controls the attack. On the screen, HiFi envelopes
are drawn accurately, albeit tiny and tilted to the left. This mode shows eight envelopes at a
glance and is sufficient for editing simple A/R envelopes. The HiFi envelope editor is more
precise.
Switching Envelopes
Shift+B: Switches between envelope 1 and envelope 2, and the classic envelope if it is enabled
for the track. The volume envelope is indicated on-screen by a V over the fader number.
Envelope 1 (if it is not the volume envelope) is indicated by a single dot, and envelope 2 by two
dots.
HiFi Envelope Editor
B Button: Displays the HiFi Envelope Editor, similar to the way that pressing B in loop/slice
display the HiRes slice editor. HiFi envelopes have six parts: attack, attack hold, decay, sustain,
sustain hold, and release. Sustain is the volume level that the envelope falls to after the decay.
All of the other parameters are time, expressed as a percentage of the total sample length.
Synthesizers have oscillators which are always running. In a synthesizer the envelope parts are
actual times. Increase any of them and the whole sound plays for more time. In the S2400, the
envelope parts are percentages of the total sample length. For example, if the sustain hold is set
to 50.0 and the decay to 50.0, with all other parts being zero, then the sound will begin to decay
halfway through.
At the top right of the screen, next to the Σ symbol, is the total length of the envelope, which is
also expressed as a percentage. The envelope can be shorter than the full length of the sample.
For example, set the total to 75.0 to cut off the last 25% of the sound.
To switch between envelope 1 and 2, select and modify the envelope number at the top of the
screen, or press Shift+B for the appropriate track.
To Next Page
Loading...