Mike, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I have noticed better accuracy but I don't know whether that is due to my getting better at talking to a speech recognition program or to bypassing the USB hub and connecting directly to the G4. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Your improved accuracy is probably due to both. For any speech recognition software to work well you first must have good solid sound input from the microphone through the soundcard/USB soundcard. Once you have good sound input you must train system and you must train yourself. The more you use speech recognition software the more you understand how the system wants you to enunciate words in order for them to be recognized. Martin Markoe, eMicrophones, Inc. The best microphones for Speech Recognition See us at: http://www.eMicrophones.com/index.asp See, "Key Steps to High Speech Recognition Accuracy for the Mac" at: http://www.emicrophones.com/docDetails.asp?DocumentID=39