Von: "Ron Roscoe" <[log in to unmask]>


> A version of the frequency response plot I tried to send out can be found on
> page 476 of Read and Welch 2nd Edition.

All good mailing lists strip out attachments and HTML.  That's 
what web pages are for.  :-)

There is some interesting research here:

http://www.victor-victrola.com/Technical%20Articles.htm