Glossary
1/f noise: A type of random noise that increases in amplitude at lower frequencies. It is widely observable in physical systems, but not well understood. See white noise for comparison.
–3dB cutoff frequency: The division between a filter’s passband and transition band. Defined as the frequency where the frequency response is reduced to −3dB (0.707 in amplitude).
“A” law: Companding standard used in Europe. Allows digital voice signals to be represented with only 8 bits instead of 12 bits by making the quantization levels unequal. See mu law for comparison.
AC: Alternating current. Electrical term for the portion of a signal that fluctuates around the average (DC) value.
Accuracy: The error in a measurement (or a prediction) that ...
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