On Sun, 18 Nov 2007 00:43:39 -0800 (PST), campos
wrote:

Hi,

I'm trying to do some research work in Speech Recognition. I just
notice that a good microphone is very important for the accurary rate.
It seems that USB headset with microphone is better. But it's too hard
for me to choose. Would you please recommend one for me? Price could
be $50 - $100. Thanks in advance!

You will find them all pretty similar. Choose on price and looks.
Choose one with a bendy arm, though, because the mic absolutely must
not be placed in front of the nose or mouth. It should be located at
the cheek, about an inch from the side of the mouth, between mouth and
nose heightwise.

d
--
Pearce Consulting
http://www.pearce.uk.com