Marc wrote > Now I know, why the 16 bit wav files had problems... thanks!!! Fortunately, a core dump showed me the way. If it were always that easy... Also, regarding wav.c, I believe the bytes of the 16-bit values are written in wrong order. At least tplay gives me only noise, and my WAV specs are silent on endianness issues... ralf -- What time is it? http://rws.home.pages.de/