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- Path: sparky!uunet!munnari.oz.au!ariel!ucsvc.ucs.unimelb.edu.au!lugb!news
- From: MATGBB@LURE.LATROBE.EDU.AU (BYRNES,Graham)
- Newsgroups: rec.audio
- Subject: Re: 20 or 24 bit digital recording?
- Message-ID: <1992Jul24.011417.10677@lugb.latrobe.edu.au>
- Date: 24 Jul 92 01:14:17 GMT
- References: <1992Jul20.155356.12452@phillip.edu.au> <7640089@hpfcbig.SDE.HP.COM> <1992Jul23.212018.16396@ccu1.aukuni.ac.nz>
- Sender: news@lugb.latrobe.edu.au (USENET News System)
- Organization: La Trobe University
- Lines: 29
- In-Reply-To: stuartw@ccu1.aukuni.ac.nz's message of 23 Jul 92 21:20:18 GMT
- X-News-Reader: VMS NEWS 1.22
-
- In <1992Jul23.212018.16396@ccu1.aukuni.ac.nz> stuartw@ccu1.aukuni.ac.nz writes:
- > >20 bit recording is only begining to appear in recording studios
- > >producing the master copies. The 20bit master MUST transfered to a 16
- > >bit format as in the case of a CD. The current technology (DCC omitted)
- > >CANNOT handle the 20 bit format. However the accuracy of the 16 bit
- > >information on the CD may be truer to form when originating from 20 bit
- > >master than from a 16 bit.
- I dont know about accuracy, but consider taping with 20 bit. You don't
- know precisely how loud things are going to get, so you set your max level
- (say) 2 bits down from 0db (ie -12db). This should keep you safe from
- clipping the adc. Even if you were wrong in the other direction (quieter
- than expected), you still get 16 bit reolution. When you come to mastering
- to 16 bit, you can transfer at a level that makes use of the full 16bit
- range (which is enough, IMHO).
-
- If you are recording direct to 16 bit, you either end up with less
- than full dynamic range, or clipping on the recording.
-
- > ( ie:on audio data, you can EASILY get 1:8 compression NON-LOSSY ..
- > anyone for an 8hour CD format??? )
-
- News to me: Why is DCC so contentious at 1:4, and mini-disk admitted
- (by Sony) to be inferior to CD at 1:5????
- Graham B
- > -------------------------------------------------------------------------------
- > stuartw@ccu1.aukuni.ac.nz
- >
- > >>>>In VI Where Available<<<<
- > -------------------------------------------------------------------------------
-