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- Newsgroups: rec.audio
- Path: sparky!uunet!mcsun!sunic!nobeltech!kega
- From: kega@nobeltech.se (Kent Gabrin)
- Subject: Re: Anti-aliasing on the recording end?
- Message-ID: <1993Jan21.165202.2439@nobeltech.se>
- Organization: NobelTech AB
- References: <shetline-210193103508@128.89.19.74>
- Date: Thu, 21 Jan 1993 16:52:02 GMT
- Lines: 29
-
- In article <shetline-210193103508@128.89.19.74> shetline@bbn.com (Kerry Shetline) writes:
- >It has obviously become popular in digital playback systems to use
- >oversampling as a way to provide digital-domain filtering, allowing for the
- >use of much less severe analog filters. But what's going on these days on
- >the recording side?
- >
- >I realize that the answer to this question would most likely depend on the
- >application. I imagine that most consumer DAT, DCC, or MD units employ
- >steep input filters and call the job done. However, I suspect that some
- >(most?) of the pro gear, and maybe even some high-end consumer stuff, would
- >use higher sampling rates (>50KHz) with more gentle filters.
- >
- >The problem is, you'd need *real* higher sampling rates (as opposed to
- >computed oversampling), and the processing power to perform the sampling
- >rate conversion with digital filtering.
- >
- >Anyone out there got the scoop on this?
- >
- >-Kerry
-
- Well DAT players of the past might have suffered from low sampling
- rate and steep filters. DAT of today also use oversampling and other
- 'new' techniques (like one bit and noise shaping) in their A/D to
- increase sound quality at recording. /Kent
-
- Kent Gabrin NobelTech Systems ! My thinking is not as great as
- S-175 88 Jaerfaella Sweden ! Oliver Berendinus Bumble /Will Try
- KEGA@nobeltech.se ! DAT owner since jan 1992
-
-