uLaw in Sapi

[weaver4]

I am using a dialogic card that requires a 8bit 8khz ulaw (or alaw) for the input . I am using SAPI. How do I tell the Cepstral coder that I want it in 8bit, 8khz ulaw. I know the coder will do it. Is there a configuration file somewhere?

If I am encoding into 8bit, 8khz ulaw can I use either William or William-8kHz for the encoder?