Provides performance requirements for analog, sampled-data, and digital implementations of bandpass filters that comprise a filter set or spectrum analyzer for acoustical measurements. It supersedes ANSI S1.11-1986 (R1998), and is a counterpart to International Standard IEC 61260:1995 Electroacoustics & 8211; Octave-Band and Fractional-Octave-Band Filters. Significant changes from ANSI S1.11-1986 have been adopted in order to conform to most of the specifications of IEC 61260:1995
ANSI/ASA S1.11-2004 history
2004ANSI/ASA S1.11-2004 Specification for Octave-Band and Fractional-Octave-Band Analog and Digital Filters