Part 8: Editing Programs
FILTER ENVELOPE
The Filter Envelope function (press [100]) is crucial whenever you want the tonal quality of a note to change over time, differently from its overall level. Example: When you want the initial attack of a note to be bright, but want the sustaining part to be filtered.
Note: Be sure to read the TIP in the Filter Envelope Trigger Mode section on page
134.It deals with getting the most natural interaction between the Sustain Pedal and the Filter Envelope.
TIP: For the most effective Filter Envelope sweeps, leave the Amplitude Envelope Sustain level at maximum (99) and control the shape of the Sound entirely with the Filter envelope (especially the Decay rate and Sustain level).
The following Filter Envelope variables will have effect only if the FILTER ENVELOPE
✪DEPTH (on Page 7 of the FILTER function) is set to a value other than 0, or Filter Envelope is a source in the MOD function.
Also note that the Filter Envelope may have no effect if some other modulation source, or the basic setting of the filter, has already pushed the filter cutoff frequency to its maximum.
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 Filter Envelope Page 5
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. Depending on the setting of the Sustain Decay control (see below), the envelope will either hold at the sustain level until you release the note on the keyboard, or decay to 0 at the Sustain Decay rate (which is on page 6 of the envelope function). You can create a long “plateau” at the start of a note by setting the Sustain to 98 and the Decay to 99. This will cause the envelope to take the maximum amount of time to get from peak level to a level of 98, before the Sustain Decay portion of the envelope begins.
Release (00 to 99) | Page 4 |
Eventually, you will let go of the note that you’ve been holding (either by releasing the note on the keyboard, or releasing the sustain pedal if it was pressed). It is at this point that the Release portion of the envelope takes effect. The Release is the time that the envelope takes to get from the sustain level back down to nothing. Setting the Release time to 0 is good for playing those short funky riffs that you hear on a clavinet. Setting the Release time to 99 will make the envelope take a very long time to reach zero level.
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134 | QS7.1/QS8.1 Reference Manual | |
