WaveWarp 2.0 Component
      
Signal Generators:
Random Uniform Noise Generator
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Functional Description
Generates a (pseudo-)random audio signal with a uniform amplitude distribution
between -1 and 1.
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 noise signal are adjustable via
the Parameter Window, as summarised in the
following table.
| Parameter | Purpose |
|---|
| "Bandwidth" slider |
Adjusts the bandwidth of the output noise signal. A new pseudo-random number
is generated
at intervals corresponding to the selected bandwidth.
Between these intervals, the audio signal output will retain its previous value.
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| "Amplitude" slider |
Adjusts the amplitude of the output signal, after the random noise has been computed.
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| Plot window |
Displays a representative portion of the output noise sequence.
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Algorithm
Utilizes a pseudo-random number generator using the system clock as
a "seed".
Signal Implementations
| Audio signals | Control signals | Description |
|---|
| Single output mono | n/a | Generates a mono signal, sent to the mono output |
| Single output stereo | n/a | Generates a mono signal,
sent (in duplicate) to the stereo output channels |
Related components:
Example DrawingBoards illustrating usage:
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