[vorbis] Pitch shift with RC2

ndrw mchl grnbrg agreenbu at nyx.net
Wed Aug 15 12:52:13 PDT 2001



- Sanspoof <sanspoof at hotmail.com> wrote:
: >Just a quick check...are you using RedHat RPMS ?
: 
: No, using that GUI fishy tool on Windows 2000 to rip the files then playing 
: it back on Winamp.  I pulled out my good headphone to make sure I was really 
: hearing it.  (sorry about the 25KHz thing - meant to say 25 - 50 Hz. In 
: other words, just barely audible)

25-50Hz is pretty noticeable, I think (especially in the bass guitar/cello
range), since it would shift an A-220 to a middle C. I had a tape player in
my car for a while that used to play the tapes too fast, and this drove me
nuts. Is the shifting proportionate (i.e. 220 * 1.1136 = 245) or fixed
(i.e. 220 + 25 = 245)? A fixed 25Hz shift would be much more noticeable on
the low notes than the high, and the resulting music would probably be
much more dissonant than the original.


-- 
 agreenbu @ nyx . net                             andrew michael greenburg
                     http://www.nyx.net/~agreenbu/

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