- Filter: any medium through which a signal passes.
- Typically, a filter modifies the signal in some way:
- audio speakers / headphones
- rooms / acoustic spaces
- musical instruments
- A digital filter is a formula for going from one digital
signal (input
) to another (output
):
Figure 1:
A black box filter.
![\scalebox{1}{\includegraphics{eps/blackbox.eps}}](img3.png) |
``Music 171: Introduction to Delay and Filters''
by Tamara Smyth,
Computing Science, Simon Fraser University.
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Copyright © 2019-11-21 by Tamara Smyth.
Please email errata, comments, and suggestions to Tamara Smyth<trsmyth@ucsd.edu>