HRTF's

[Ranjit Randhawa <rsran@xxxxxxxxxxx>]

 Dear List,
Could some one help to clarify as to whether HRTF's would introduce high 
frequency components to a low frequency sinusoid (let it be 300 hz) in 
determining its elevation. Further, would this signal sound any 
different if it was in front at zero degree elevation and azimuth versus 
at some other location? I guess I am also trying to find out how the 
pinna would interact with the signal to create any high frequency 
components and therefore will our ability to determine elevation of low 
frequency signals be degraded considerably? Sorry for so many questions, 
I have not been able to find out any references (net accessible) to such 
day dreaming.
Thanks for your help in advance, sincerely,
Randhawa