High-Frequency at The Bottom?

[Hart Larry]

Well, on Saturday I had some1 helping here--and we finally got more than 
25-lines on this screen.  It seems amazing that pine-and-lynx just keep 
displaying until all 48 of these lines are filled.  Well, now that I have 
48-lines, as I am useing speakup review, when I get to the bottom, the sound 
has become much higher.  The sound at the top on line 1 is normal--and I looked 
in the /proc/speakup dir, but find nothing which changes the frequency of this 
tone
Thanks in advance for any suggestions
If I were guessing, maybe the tone is 8KHZ?
Hart