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- Path: sparky!uunet!mcsun!uknet!strath-cs!bnr.co.uk!bmdhh243!philipn
- From: philipn@bmdhh202.bnr.ca (Philip Nortey)
- Newsgroups: rec.audio
- Subject: Re: Why filter D/A output?
- Message-ID: <1992Nov16.161335.4400@bnr.uk>
- Date: 16 Nov 92 16:13:35 GMT
- References: <1992Nov8.222911.27702@doug.cae.wisc.edu>
- Sender: philipn@bmdhh202 (Philip Nortey)
- Organization: BNR Europe Ltd, Maidenhead, UK
- Lines: 6
- Nntp-Posting-Host: bmdhh202
-
- You have a good point regarding filtering ... The best that I can come up with in
- terms of explaning why filtering is needed is that the distortion products at
- higher frequencies have images that 'fold' back into the audio band. Therefore
- filtering is required to suppress noise in the audio band.
-
- Mind you .. what I have just said may be a load of rubbish !
-