wrassp is a wrapper for R around Michel Scheffers's libassp (Advanced Speech Signal Processor). The libassp library aims at providing functionality for handling speech signal files in most common audio formats and for performing analyses common in phonetic science/speech science. This includes the calculation of formants, fundamental frequency, root mean square, auto correlation, a variety of spectral analyses, zero crossing rate, filtering etc. This wrapper provides R with a large subset of libassp's signal processing functions and provides them to the user in a (hopefully) user-friendly manner. The wrassp package is used by the EMU Speech Database Management System (EMU-SDMS) to perform signal processing routines.
The header structure posted in #16 by @stevecassidy includes a number of so called generic variables that are completely ignored by the ASSP library, i.e. loading, manipulating and saving an SSFF file with generic variables while result in the loss of the generic variables. Adding a field to the DataObject structure to hold generic variables is not really difficult, reading and writing this information should be almost trivial.
Generic variables are now supported. We should think about using them to log analysis settings. I will ask Michel if we should commit those changes to the ASSP sourceforge repository.
quabolasse
commented
11 years ago
The header structure posted in #16 by @stevecassidy includes a number of so called generic variables that are completely ignored by the ASSP library, i.e. loading, manipulating and saving an SSFF file with generic variables while result in the loss of the generic variables. Adding a field to the DataObject structure to hold generic variables is not really difficult, reading and writing this information should be almost trivial.