VoxForge
>i fogot to Configuring Audacity Preferences when i recoded my files?
>now,can i make the changes on them (wav file) with these configuration? or
>i need to again record my files from the begining?
No need to re-record (though we prefer 48kHz-16bit audio) - just update your readme file to reflect the sampling rate and bits per sample you used.
thanks,
Ken