Coefficients/Potentiometers: Difference between revisions
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[[File:Coefficients-potentiometers.png|thumb|Coefficients and assigned potentiometers are on different places on the board and put here together only for visualization.]] | [[File:Coefficients-potentiometers.png|thumb|Coefficients and assigned potentiometers are on different places on the board and put here together only for visualization.]] | ||
'''Coefficients''' are | '''Coefficients''' are quantitative parameters that enter analog computations in a multiplicative fashion. Using potentiometers, coefficients can be set to any value between 0 and +1. Their output is given by <code>output = coefficient * input</code>. [[The Analog Thing]] features eight coefficient potentiometers, allowing the use of eight coefficients in an analog computation. | ||
== How to use a coefficient == | == How to use a coefficient == | ||
Say you want to compute <code>+0.5 = 0.5 * (+1)</code>. Then follow these steps: | Say you want to compute <code>+0.5 = 0.5 * (+1)</code>. Then follow these steps: | ||
# First, decide which coefficient to use. They are numbered | # First, decide which coefficient to use. They are numbered. Say you want to use number 1. | ||
# Put a plug into the input for coefficient 1. Connect it to some +1 source. | # Put a plug into the input for coefficient 1. Connect it to some +1 source. | ||
# Put a plug into the output of coefficient 1 and use it wherever you want. | # Put a plug into the output of coefficient 1 and use it wherever you want. | ||
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== How to fine-tune a potentiometer == | == How to fine-tune a potentiometer == | ||
THAT offers the <code>COEFF</code> [[mode]] for fine-tuning coefficients. In this mode, the [[Voltmeter]] displays the exact value of the meter position of the potentiometer chosen in the coefficient plug (highlighted in red). | |||
[[File:Coefficients Howto.png|thumb|left|400px| | [[File:Coefficients Howto.png|thumb|left|400px|How to use coefficients: Different blocks highlighted on [[The Analog Thing]] front panel]] | ||
[[Category:Components of The Analog Thing]] | [[Category:Components of The Analog Thing]] | ||
Revision as of 07:43, 30 July 2021
Coefficients are quantitative parameters that enter analog computations in a multiplicative fashion. Using potentiometers, coefficients can be set to any value between 0 and +1. Their output is given by output = coefficient * input. The Analog Thing features eight coefficient potentiometers, allowing the use of eight coefficients in an analog computation.
How to use a coefficient
Say you want to compute +0.5 = 0.5 * (+1). Then follow these steps:
- First, decide which coefficient to use. They are numbered. Say you want to use number 1.
- Put a plug into the input for coefficient 1. Connect it to some +1 source.
- Put a plug into the output of coefficient 1 and use it wherever you want.
- Tune the potentiometer to the middle/center, around 0.5
How to fine-tune a potentiometer
THAT offers the COEFF mode for fine-tuning coefficients. In this mode, the Voltmeter displays the exact value of the meter position of the potentiometer chosen in the coefficient plug (highlighted in red).
