Impedance

In this section, we are interested in understanding the concept of impedance, which relates the frequency-dependent nature of “force” and “motion” in a system. In subsequent sections of this course, we will evaluate the impedance of various parts of musical instruments to understand how they vibrate.

An impedance provides a frequency response representation of a system in terms of input and output physical signals, in a way similar to the frequency response of filters. Likewise, the inverse frequency transform of an impedance provides an impulse response characterization.