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- Path: sparky!uunet!paladin.american.edu!darwin.sura.net!udel!gvls1!tredysvr!cellar!darling
- From: darling@cellar.org (Thomas Darling)
- Newsgroups: comp.sys.atari.st
- Subject: Re: FALCON
- Message-ID: <Z268PB1w164w@cellar.org>
- Date: 28 Aug 92 16:23:34 GMT
- References: <7170@charon.cwi.nl>
- Sender: bbs@cellar.org (The Cellar BBS)
- Organization: The Cellar BBS and public access system
- Lines: 34
-
- jhh@cwi.nl (Jaap Henk Hoepman) writes:
-
- > |> And fourth, how many times do you have to be told that samplers and
- > |> recorders are completely different? A sampler's DAC involves things like
- > |> moving anti-aliasing filters and variable-frequency playback. An audio
- > |> recorder can make do with fixed-frequency playback and simple D/A
- > |> conversion.
- >
- > It might interest you to know that currently the new range of Roland samplers
- > use fixed-frequency playback.
-
- Kurzweil's supposed to be doing it soon, as well. Pretty neat. It means a
- lot more internal number-crunching, but great audio results.
-
- > The fact that older samplers use variable-frequency playback and moving
- > anti-aliasing filters only makes them much more expensive surely not
- > better (in precision) than fixed-frequency DAC's.
-
- ??...that was sort of my point, J. I was saying that samplers require
- costlier hardware that isn't particularly better at the kind of clean
- fixed-frequency reproduction involved in audio recording.
-
- > Regarding precision, I'd rather `make do' with a fixed frequency DAC, using
- > some good interpolation (quadratic) method, than relying on a moving anti-ali
- > filter. Anyone who has any experience with analog filter techniques knows tha
- > filters, and especially state-variable ones, are always imperfect.
-
- Agreed. See above. And in addition to the imperfect filtration, there's
- also the added noise that comes with analog components in the signal chain.
-
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