I would write to the guy at www.waycoolkennels.com
He has a fun web site for big game hounds and is an interesting guy. I bet he could help you out. Or he would know someone near you that you could record hounds live.
One of my buddies was bear hunting the other night, if i'd had your phone # you could have listened live. he usually runs 8 or 10 dogs, they'll roar. I have no idea what you have in mind, gonna wire it up to the door-bell? or alarm clock?