The 1.12 version of NFM is provided as a free download on our website. This software was originally developed by Owen Duffy. The common filename for the program's installer is NFM.exe. The program relates to Multimedia Tools. The most popular versions among the software users are 1.1 and 1.0.
From the developer:
NFM implements the method of Agilent application notes AN 57-1 and AN 57-2 for noise figure measurement, with the addition of an adjustable attenuator after the noise source and between the DUT and instrument.
NFM also incorporates a facility for true relative audio power measurement using the PC sound card, with a selectable integration time.
You may want to check out more software, such as Taggin' MP3, MP3 Remix Player Standalone Plus or Travelogue 360 Rome, which might be related to NFM.