PiTone Systems has released Specan32, a free spectrum analyser effect plug-in for Windows.
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 standard.
Specan32 is available to download as a freeware VST effect plug-in for Windows.