pvf (1) - Linux Man Pages
pvf: utilities to convert various sound formats
DESCRIPTIONThe pvf tools are a collection of tools to convert vgetty modem data to and from the 'raw modem data' format, and from that to and from various audio file formats (like .au or .wav). In addition, there are some tools to manipulate pvf files, like speed up files or cut off trailing noise.
A list of commands is below in the "see also" section.
AUTHOROriginal version from Klaus Weidner. Copyright (C) 1997 by Marc Eberhard <Marc.Eberhard [at] Uni-Duesseldorf.DE>