PVOC file is database created by iVocabulary to manage vocabulary words. PVOC files store metadata like author and languages. PVOC file open in Christian Beer iVocabulary 3. PVOC extension originally from ProVoc app by Arizona Software before discontinued now only iVocabulary creates PVOC files. iVocabulary exports databases as PVOC by File → Export → Export for ProVoc.
Windows recognizes filename extensions to open files. When Windows does not recognize extension you get message to select app for file type.
Article explains .PVOC extension, how to open and work with it on systems. .PVOC is ProVoc Database File developed by Arizona Software. It is database related file.
PVOC-EX format provides cross-platform phase vocoder analysis files. Implementations exist in Csound, CDP system, Soundhack and Princeton PVC package.
ANA2PVX utility converts CDP spectral file to PVOC-EX format. It complements PVOCEX2 conversion program. PVOC ANAL converts soundfile to spectral .ana file. PVOC SYNTH converts .ana file to soundfile.
pvoc generates audio fragments from output file with modified timescales and pitches. Analysis conditioned by flags below. Optional space between flag and argument. -s srate sampling rate to override soundfile header rate, default 10000 if neither present.
Csound
Audacity (with Nyquist)