7.01 filter; wave filter. Device for separating waves on the basis of their frequency.
Annotation 1 The device can be a mechanical, electrical or acoustical filter.
Annotation 2 A filter is typically all-pass, low-pass, high-pass, bandpass or band-stop.
Annotation 3 A fractional octave band filter is an example of a bandpass filter.« Back to Standards Terminolgy Index