>> C:\WINDOWS\Desktop\hal\embedinc\com\wav_hal.exe winex.wav It gave me a lot of data about the wav file structure, but no output file (that I could find) I looked in the source, and saw so I tried: C:\WINDOWS\Desktop\hal\embedinc\com\wav_hal.exe winex.wav output.aspic It said something like 'Invalid token found on line 2, token was 'output.aspic' So how am I supposed to use it :) << That sounds more like the WAV_INFO program than the WAV_HAL program, or a very ancient version of WAV_HAL. Where did you get this version from? Just to be sure, I put up a fresh releases of the PIC development tools and the HAL project. I also added a separate release of the general WAV file manipulation utilities. See http://www.embedinc.com/pic/dload.htm. As an example, I just went to a temp directory and entered: wav_hal /winnt/media/tada -rrate .5 and it made TADA.ASPIC and TADA.WAV files just like it's supposed to. If you install the PICDEV and PIC_HAL releases, please let me know if WAV_HAL then works correctly. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics