This 1/3rd octave spectrum analyzer
VST plugin is based on the GOST 17168-82 — Filters
electrical octave and third-octave. General
technical requirements and methods of testing. And
also meets IEC804:1985 — Standard Specification for
Integrating-averaging sound level meters.
Interface is modelled on classic
DN60 spectrum analyzer by Klark Teknik, originally
developed 1980. Our plugin adds “high precision”
filters and full frequency scale of GOST 17168-82
Specan32 is available to download as
a freeware VST effect plug-in for Windows.