WahWah
The WahWah effect is an amplitude-controlled bandpass filter that can be
used to produce vocal-like sounds, particularly "wah-type" sounds.
The WahWah effect contains five controls: These are: Cut ("Cutoff"), Res
("Resonance"), Sensitivity, Attack and Decay.
The Cut control is used to set the centre frequency (in Hz) at which the
bandpass filter operates.
The Resonance control is used to set the amount of emphasis around the
cutoff frequency. Higher settings create a more pronounced peak in the
signal while lower settings produce a flatter response.
The Sensitivity control sets the degree to which the input signal's amplitude
affects the filter cutoff frequency. Lower values produce a less-pronounced
wah effect, while higher values produce stronger, more vocal-like wah
sounds.
The Attack control is used to set the response time of the filter to changes
in the input signal's amplitude. Faster Attack times mean that the wah
effect is triggered more quickly, while slower Attack times introduce a delay
before the wah effect is produced.
The Decay control is used to set the recovery time of the filter after the
input signal's amplitude has changed. Faster Decay times mean that the
wah effect returns to its default value more quickly, while slower Decay
times mean that the wah effect returns to its default value more slowly.
Rob Papen Albino 3.0
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