Re: bacKwards Taping and artwork mysteries

[Dave Hsu <hsu@eneevax.umd.edu>]

>Really-From: ganzer%trout@nosc.mil (Mark T. Ganzer)
>-------
>From Dave Hsu:
>>...  The current method of choice is to sample the CD in stereo
>>at 50kHz, 12 bits with a Masscomp, and play it back at whatever speed I
>>feel like.  40k seems to be about the lowest usefully intelligible playback
>>speed.  Now, if only the speech recognition guys would finish up their
>>programs sooner...
>
>Yeah, the 20Khz sampling rate of the AKAI will only give you frequency
>response to app 10Khz. Now if I had the time and equipment, this would
>be how I would do it (this is reaching back to my college days of working
>in a sinal processing lab as a programmer). First, I would sample it
>ala Dave (although 100Khz would be preferable as you might want to drop
>the range an octave or two).

Actually, I was planning on doing ~200kHz just for the hell of it, as
soon as I can find the time...plenty of disk space, and plenty of
bandwidth left.  One more final to go...

> Then, do a FFT on it. Then, use some filtering
>programs to remove all the garbage outside the vocal frequencies. This
>would require some playing around, but picture this as playing around
>with a 1024 band equalizer.

*sigh*, we're a bit low on firepower for that; the Masscomp in question
is but a 5500DP and not a 5700.  Besides, we haven't finished installing
EPI's lovely, graphics-intensive signal processing package yet.  Soon...

Hey, wait a minute...I'm leaving this lab in a week.  What am I talking
about?

> Then do an inverse FFT and convert back to
>analog. Just think of the equipment! Just think of the computing time!
>(Apologies for technical errors, as it has been a few years since this
>ME has played with such things). Or at least how about a direct digital
>dump from the CD?...
>
>MarK T. Ganzer

Hmmm...the CDP502ES has a digital out jack (for which I have no pinout,
natch) but our Masscomp isn't equipped with their digital-in board.  I
need to replace my ailing D5 first before I try to tap the serial lines
to its converters.

>Really-From: amdcad!tymix!nancyh@decwrl.DEC.COM (Nancy Holt)
>KT
>
>On the CD for The Dreaming (domestic), the picture of the ivy on the back
>of the plastic case is completely different than the picture of ivy 
>on the back of the lyric booklet.  This mildly puzzles me.
>
>Paul Holt tloH luaP

Incidentally, Paul, is tymix a Unix machine?  If so, you might consider
doing a `setenv NAME "Paul Holt"' to prevent confusion; I don't know if
this works with non-Berzerkeley mailers, though.

Don't be too puzzled...EMI needed a picture of some ivy, so they
selected a blank patch from the back cover of the LP and used that.