AVR-Chat

AVR-Chat@yahoogroups.com wrote:
> Hi Tim,
> 
> I cant help with your problem unfortunately, but am very
> interested in  learning more about playing the .wav  files
> from the storage media.
> 
> Do you access it using a fat file system and copy the wav
> files in from a computer ?
> 
> What format of .wav file do you use ? 8 bit mono ?
> 
> Any online documentation regarding the structure etc of the files ?
> 

Yes you copy the wavs onto the CF card on a PC and the micro reads the
FAT16 filesystem. They are 8 bit mono wavs but the wav file format is
very simple (when using uncompressed data) and it's just as easy to read
16 bit or stereo wavs. Locating whereabouts the desired file is in the
FAT system is the hard bit.

http://www.sonicspot.com/guide/wavefiles.html is a good starter for wav
files

http://www.dataraid.com/storage-u/fat12-fat16-fat32-file-system/ tells
you about FAT

Winhex http://www.x-ways.net/winhex/ is a useful tool to show you the
structure of the CF card (or a disk)

-- 
Tim Mitchell
tim@sabretechnology.co.uk
http://www.sabretechnology.co.uk