Hello all, Release 0.9.2 of the tetraproc and tetrafile processors for first order Ambisonic microphones is now available at: <http://kokkinizita.linuxaudio.org/linuxaudio/downloads/index.html> Main changes: tetrafile now defaults to the Ambix format for both channel gains and order. It is still possible to create old style 'Fuma' files, see README. Ciao, -- FA