WaveWarp 2.0 Component
      
Signal Generators:
Single Impulse Control Generator (A)
|
Functional Description
Generates a
single impulse with adjustable onset time and
amplitude (between 0 and 1, for use as an "Amplitude" controller).
NOTE: the sample rate at which this component is executed can be arbitrarily set via the
"Sample-rate setting for Signal Generators and
Input ASCII files" button
(or the "Sample-Rate Setting" command under the "Edit" menu) on the toolbar, which is
activated whenever the component is selected on the DrawingBoard.
Equivalently, it can be set via the dialog box which (i) appears
when the component is initially
dragged on to the DrawingBoard or (ii) is activated using the right-mouse-button when
the component is selected on the DrawingBoard.
This procedure allows the component to either (i) enforce
a user-determined sample rate on the downstream component(s), or (ii) to inherit the sample rate from
the downstream component(s). Different signal generators can run at different
sample rates on a DrawingBoard, as long as the rules of connectivity
for multiple sample rates are adhered to (see the
WaveWarp Users' Guide
for more information.)
The characteristics of the impulse are adjustable via
the Parameter Window, as summarised in the
following table.
| Parameter | Purpose |
|---|
| "Pre-delay" slider |
Adjusts the onset time of the impulse,
given by the slider value multiplied
by the "Max pre-delay" range selection.
The resultant "Total pre-delay" corresponds to the onset time
(measured from the start of the DrawingBoard playback).
The signal ouput will be
zero until this time has elapsed. Then, for one sample, the output
will be equal to the selected "Amplitude", then zero thereafter.
|
| "Amplitude" slider |
Adjusts the amplitude of the impulse.
|
| Plot window |
Displays the time-history of the impulse
(i.e. illustrates the onset time), neglecting the
"Amplitude" scaling.
|
Algorithm
n/a
Signal Implementations
| Audio signals | Control signals | Description |
|---|
| n/a | single output | Generates a control signal with an amplitude nominally between 0 and 1 |
Related components:
Example DrawingBoards illustrating usage:
|
