On Jan 17 2011, Geoffrey Barton wrote:
UHJ needs all the help it can get, and the analogue design Dave referred
to is 6 pole/zeroes in each of the 0 and 90 degree sections, designed for
a phase ripple of <1degree 20~20k. Too much ripple gives blurring and
mis-location in the images. IMHO 4 degrees is way too much.
rgds,
Geoffrey
Hi,
I'm wondering if the phase anomalies could be employed in a positive
fashion. Since, in this case, on the 6 pole designs at higher sample rates
the problems are worst (or can be made to be worst) at the low end, maybe
this could be used, for instance, to ameliorate the problems caused when
cutting vinyl if there is heavy bass components in the rear. And, yes, this
is a real, current problem - just been involved in just such a project!
Dave
_______________________________________________
Sursound mailing list
Sursound@music.vt.edu
https://mail.music.vt.edu/mailman/listinfo/sursound
