Alesis QSR 64 Level 00 to, Page, Velocity Modulation 00 to, Attack 00 to, Decay & Sustain 00 to

Editing Programs: Chapter 6

subtle but important differences. If the Delay and Attack are set to 0 and either the Decay is 0 or the Sustain is 99, the envelope will immediately jump to the release stage (if not already there) when the note is released and the sustain pedal is held down. If a long attack is set, and the envelope does not reach the end of the attack segment when the note is released, it will be skipped and the envelope will jump immediately to the sustain decay segment. If a long delay is set, and the envelope has not reached the attack segment before the note is released, the envelope will remain at 0. However, if Freerun is turned on, the envelope will continue through the delay, attack, decay and sustain segments and remain at the sustain decay segment. This is exactly the same as holding down the note on the keyboard. When the Sustain Pedal parameter is turned off, the Sustain Pedal will have no effect on the envelope.

Level (00 to 99) Page 10

This is the overall output level of the envelope. If this is set to 00, the Filter Envelope will have no output and will have no effect, while at 99 it will have a maximum effect on whatever it is being routed to.

TIP: When selecting Filter Envelope Level as a modulation destination, set the Filter Envelope level to 00 if the Modulation Level is above 0 (or, set the Filter Envelope level to 99 if the Modulation Amount is below 0).

Velocity Modulation (00 to 99) Page 11

This determines how keyboard dynamics will affect the envelope level. When set to 99, note velocity controls the envelope’s output; notes played hard will deliver a higher envelope output than notes played soft. When set to 0, note velocity will have no effect on the envelope’s output level.

AMP ENVELOPE

The Amp Envelope function is crucial for all sounds because it sets the basic characteristics of the note--whether it attacks quickly or slowly, sustains or decays. Some Programs may leave the Amp Envelope in a sustaining mode, and provide attack and decay using the Filter Envelope; the effect is slightly different. Unlike the Pitch and Filter Envelopes, the Amp Envelope is always fully active (there is no parameter in the Amp/Range function adjusting how much envelope is applied to the Amp).

Attack (00 to 99) Page 1

This is the amount of time the envelope will take until it reaches its maximum output level. Setting the Attack to 0 will give a sharp edge to the sound (if the Delay is also set to 0 in Amp Envelope Page 5 -- see below); a setting of 99 will result in a much slower attack, taking many seconds before the envelope gets to maximum.

Decay & Sustain (00 to 99) Pages 2 & 3

As soon as the attack portion of the envelope finishes (when the level reaches maximum), the envelope will decay (decrease in level). The level it reaches is set by the Sustain control; how long it takes to get there is set by the Decay control. In the special case where the Sustain level is all the way up (99), then there is no decrease and the Decay time segment is bypassed. Whatever level the sustain is set to is the level that the decay section of the envelope will head for. Depending on the setting of

QSR Reference Manual 24