this , you know , very limited training HTK system.
Mm - hmm.
Uh , but the other is that , um , the digits  recorded here in this room with these close mikes , i uh , are actually a lot harder than the  studio - recording TI - digits. I think , you know , one reason for that , uh , might be that there 's still  even though it 's close - talking , there still is some noise and some room acoustics.
Mm - hmm. Mm - hmm.