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- Path: sparky!uunet!olivea!news.bbn.com!NewsWatcher!user
- From: shetline@bbn.com (Kerry Shetline)
- Newsgroups: rec.audio
- Subject: Anti-aliasing on the recording end?
- Message-ID: <shetline-210193103508@128.89.19.74>
- Date: 21 Jan 93 15:52:51 GMT
- Followup-To: rec.audio
- Organization: BBN
- Lines: 18
- NNTP-Posting-Host: bbn.com
-
- 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
-