Real-time Sound Pitch ??

Dear Fellow Programmers:
Can anyone please help me with trying to determine the pitch of
a real-time sound (using Delphi) ????
Many thanks; Sincerely
-- Doug.

--
   .////.   .//       Doug Colman - Dept of Maths, Stats           .////.   .//
 o:::::::::///    and Computer Science, Uni. of New England,     o:::::::::///

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