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>A-106-6
>Boogie filter
>

WMD Digital VCA
WMD_digitalvca price : 179 € incl. VAT

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This product is in stock now. If you order it, it will be shipped within 24 hours (see terms & conditions).
The WMD Digital VCA (Voltage Controlled Attenuator) is a novel module with a few bells to enhance your modular experience. It uses a digitally controlled analog circuit that allows for some creative control!

The rubber hits the road on this module with the Instant / Gate / Zero Crossing Detector switch and CV input. Normal operation happens in the Inst mode where the VCA will follow the CV signal as it is seen.

Things get more interesting when you enter Gate mode which causes the CV to be updated ONLY on a rising edge of the signal going into the Update G/ZCD jack. This jack has the In jack's signal normaled to it. Gate mode allows the Digital VCA to sample and hold a control voltage, very useful for pulling modulation data out of other sources. This mode uses a Schmitt trigger to ensure noisy signals can be used without causing multiple unintended updates.

The Zero Crossing Detector is the crown jewel of the Digital VCA. This little circuit only allows the VCA to be updated when the Input signal (or Update G/ZCD signal) is at 0 Volts. This eliminates popping and clicking normally associated with fast envelopes. It allows you to use a Gate signal directly as an envelope without annoying pops!

WMD would like to thank Suit & Tie Guy (STG Soundlabs) for the concept. STG Soundlabs will be releasing a 5U/MU format version of the Digital VCA.


> tech specs
Dual VCA Design
Low Distortion / Low Noise
VCA Closes Completely
Zero Crossing Detector
Gate/Trigger Detector
5V/8V CV ready
8 bit CV resolution
Analog Signal Path
Bi-Color LED Signal Indicator
Red CV Indicator
6 HP
Great for Ultra Fast Envelopes
Current consumption is 75mA for the +12 rail; 45mA for the -12 rail.

> interesting links
manufacturer's web site
http://www.wmdevices.com/digitalvca.php



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