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- Newsgroups: comp.sys.apple2
- Path: sparky!uunet!cs.utexas.edu!torn!cunews!revcan!micor!toh
- From: toh@micor.ocunix.on.ca (Marc Sira)
- Subject: VAMPS - seriously, now
- Organization: M.B. Cormier INC., Orleans (Ont)
- Date: Sat, 15 Aug 1992 05:42:21 GMT
- Message-ID: <1992Aug15.054221.5803@micor.ocunix.on.ca>
- Lines: 51
-
- Ok, I retrieved three of these VAMPS disks from cba2, the JukeBox.2, European
- Sampler, and SpaceFox ones (were there others?). I was quite keen to hear the
- songs; the subjects I've been most interested in, in my Psych degree were 322 &
- 324, the first entirely devoted to the sensation of sound and the second to
- perception in general, so I had an idea of the perceptual effects mentioned in
- the docs (though I thought their description therein to be unnecessarily
- bafflegabby).
-
- I carefully listened to one of the songs (the second one on the spacefox disk)
- in it's original soundsmith incarnation, and in the VAMPS module form. I
- listened to both with NoiseTracker, simply by loading and playing one, then
- the other. The only differences I could hear were in the sections where
- someone had cranked instrument volumes to $FF, selected "Left" and "Right" in
- the instrument definitions instead of "Track" and/or gone in and added extra
- tracks. An instance of the latter would be filling in all the unused tracks in
- the beginning with Dream Bells, all playing the same note. It seems to me that
- you could get the same effect out of Soundsmith or NoiseTracker by doing just
- that: playing the same instrument on multiple tracks to get that echoey effect.
- No news there.
-
- I tried loading some of the instruments (the ones I already had from other
- soundsmith songs) in ASIF format, right beside the module instruments in DOC
- RAM. Even playing them Left & Right, I couldn't hear any difference by toying
- with that little NT keyboard.
-
- Having seen this, I saved the instruments from both versions of the song in
- AIFF form (the VAMPS docs state that saving this way will preserve whatever
- characteristics the sound is supposed to have) and compared the files. The
- waveform sections of the files were identical. The AIFF headers and footers
- differed in a couple of places by one or two bytes, or by a displacement of
- bytes...I don't know enough about AIFF format to say whether this could affect
- the sound, but this seems moot as the VAMPS docs claim to have processed the
- waveforms through some Roland sound gear. You'd imagine this would change more
- than just the AIFF information...pretty specialised Roland equipment if not.
-
- The author in fact specifically notes that saving in raw binary format will
- lose the special info, so the AIFF info should differ - by more than a couple
- of bytes. If only the AIFF info is changed, though, what could possibly be so
- special about the instruments? What does AIFF format define, and why would you
- need an external sound processor to change it? And why did he provide
- instruments in the VAMPS.Extras folder in _binary_ form?
-
- It seems possible that these VAMPS songs have just had extra tracks put in, and
- NT instrument parms modified. Though I'd like to be wrong...can someone prove
- me so?
-
-
- --
- Marc Sira |
- toh@micor.ocunix.on.ca | "Your god drinks...P-P-Peach nectar!"
- '
-