What is BS EN 61260-1 - Octave-band and fractional-octave-band filters about?

BS EN 61260-1 is the first part of an international multi-series standard that discusses the use of electroacoustics for various purposes. BS EN 61260-1 specifies performance requirements for analogue, sampled data, and digital implementations of band-pass filters. The extent of the pass-band region of a filter's relative attenuation characteristic is a constant percentage of the exact mid-band frequency for all filters of a given bandwidth. An instrument conforming to the requirements of BS EN 61260-1 may contain any number of contiguous band-pass filters covering any desired frequency range. Performance requirements are provided for two filter classes :

Class 1

BS EN 61260-1:2014 PDF

Abstract

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