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- Path: sparky!uunet!mcsun!uknet!edcastle!dcs.ed.ac.uk!jxp
- From: jxp@dcs.ed.ac.uk (Joe Potter)
- Newsgroups: alt.sys.amiga.demos
- Subject: Re: Criti!
- Message-ID: <Bz9oyx.4pv@dcs.ed.ac.uk>
- Date: 14 Dec 92 20:59:21 GMT
- References: <Paul_Trauth.197y@agwbbs.new-orleans.LA.US> <1992Dec12.055946.20274@u.washington.edu> <OAHVENLA.92Dec12202805@lk-hp-4.hut.fi> <Bz6uEu.5CA@mentor.cc.purdue.edu>
- Sender: cnews@dcs.ed.ac.uk (UseNet News Admin)
- Distribution: inet
- Organization: Department of Computer Science, University of Edinburgh
- Lines: 49
-
- In article <Bz6uEu.5CA@mentor.cc.purdue.edu>, kodak@mentor.cc.purdue.edu (Jason 'KodaK' Balicki) writes:
- > In article <OAHVENLA.92Dec12202805@lk-hp-4.hut.fi> oahvenla@snakemail.hut.fi (Osma Ahvenlampi) writes:
- >
- > >On Amiga, that's impossible, because THE HARDWARE NEEDS SAMPLES TO PRODUCE
- > >SOUND. COULD YOU BEAT THAT INTO YOUR HEAD, LIKE THIS YEAR?
- >
- > I kept this bit, 'cause I like it.
-
- Yeah, it's quite sharp, innit?
-
- > >Go away, and learn the basics of your computer before coming here and telling
- > >people to not use samples. Maybe you'd like to see awesome graphics with no
- > >display also?
- >
- > Yeah, um, do, like, a filled vector, um, without using the blitter, yeah
- > like, on a, um, 68000, and without vector math, yeah. You could do it,
- > um, just, like, draw a box, and, um, rotate it. And, um, at 60fps.
-
- 60fps? 7.14 Mhz, 320x200x (say) 8 ? Good luck! Seriously, I see what
- you're saying and it's a good analogy. I suspect people are getting muddled in
- what they mean when they say 'sample.' Fair enough. It's a bit much to get so
- heated about it, though.
- I think we're all pretty clear on what the Amiga's audio hardware is
- capabble of, i.e. playing a waveform definition of variable start and length at
- a variable period (of data fetch), at a variable volume. What's not *quite* so
- clear is what generates the data. In what sense is a square wave (-128,127) a
- sample? Nothing was sampled to obtain this data, so how can you say it is a
- sampled sound (for that is what sample is short for)?
- I suppose you could argue that a mathematical function was sampled by
- hand to generate the data involved, but that's rather petty and glosses over
- the important distinction that it's not a recording but a precomputation.
- And what's wrong with calculating sample data in real time? Watch for
- a demo coming soon...
-
- > >--
- > >Osma Ahvenlampi - oahvenla@snakemail.hut.fi * Workstation power for micro-
- > >All my opinions are not necessarily really mine * computer price: Amiga := FUN
- >
- > alt.sys.amiga.demos.tech anyone?
-
- Nahh! Nobody would reveal any code, they'd just flame each other over
- what they think they know...
- alt.flame, anyone?
-
- > --Jason Balicki
- > kodak@mentor.cc.purdue.edu
-
- Joe.
- "How many times must the cannon balls fly?"
-