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Are audio pots logarithmic?
To compensate for the ears logarithmic behavior, audio taper pots were developed. While it is called logarithmic, it is actually an exponential curve (the opposite of the logarithmic behavior of the human ear).
Is audio taper the same as logarithmic?
Very simply, with a linear taper, if you turn the pot halfway, the resistance measured on each side will be equal. With logarithmic (aka “audio”) taper, that is not true; the resistance follows a logarithmic progression. Log taper is used because it gives a more natural progression when used for volume control.
What is logarithmic taper?
Glossary Term: Logarithmic-Taper When used in an amplifier circuit, the output varies slowly as the pot is operated at the low end and varies more and more rapidly as the pot is operated toward the high end. This is also called an audio taper because it is most commonly used for audio volume controls.
Why is the logarithmic taper called an audio taper?
Equation 1 illustrates the basic form of the logarithmic potentiometer’s resistance characteristic R (x), where x is the wiper position as a percentage of full scale. The logarithmic taper is commonly called an audio taper because it is often used audio applications for loudness control.
Why should I use a logarithmic pot for audio?
There Spehro comments that one should use a logarithmic pot for audio applications. So I googled for it. The best article I could find was one titled “Difference between Audio and Linear Potentiometers”[1] which now seems to have been removed from the original website.
What’s the difference between a linear taper pot and an audio pot?
And past “7” or “8” on the radio volume knob, it doesn’t really increase your volume anymore. It causes your signal to clip. A LINEAR taper pot increases the signal in a linear fashion. (“1” on your control is equal to 10%, “4” is equal to 40% and so forth) This works very different from an audio taper volume pot.
What is the relation between pot resistance and potentiometer taper?
Potentiometer taper is the relation between the position and the resistance of a pot. In the majority of variable resistors available this is a linear relationship, meaning that the relative position is equal to the resistance ratio.