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- Newsgroups: rec.audio
- Path: sparky!uunet!munnari.oz.au!bruce.cs.monash.edu.au!labtam!graeme
- From: graeme@labtam.labtam.oz.au (Graeme Gill)
- Subject: Re: Digital critics - sampling argument is nonsense
- Organization: Labtam Australia Pty. Ltd., Melbourne, Australia
- Date: Tue, 26 Jan 1993 02:11:32 GMT
- Message-ID: <1993Jan26.021132.19624@labtam.labtam.oz.au>
- References: <1993Jan20.211233.37643@watson.ibm.com> <1993Jan22.130811.1@tnclus.tele.nokia.fi>
- Lines: 33
-
- In article <1993Jan22.130811.1@tnclus.tele.nokia.fi>, lauusitalo@tnclus.tele.nokia.fi writes:
- > In article <1993Jan22.053032.18507@labtam.labtam.oz.au>, graeme@labtam.labtam.oz.au (Graeme Gill) writes:
- > > If you want to have "warm"
- > > analog sound on CDs you have to add that to the master recording
- > > artificially, rather than relying on analog tape and vinyl record
- > > distortion to do it for you.
- >
- > Is that why they are adding Snap, Crackle and Pop (tm) to
- > new CD's? Imagine CD snapping like LP.
-
- Mostly they seem to be referring to the sound imparted by
- analog tape machines. Analog tape recording has fairly high distortion
- and a rounded saturation characteristic. The other interesting thing
- in the making of vinyl records is that (as I understand it), once the
- master tape is complete, the sound is then tweeked by the cutting Engineer
- to make sure that the groove stays within the mechanical limits of both
- the cutting and typical reproduction gear. This entails compressing
- large amplitude low frequency signals, and limiting the maximum
- slew rate, which amounts to curtailing high energy high frequencies.
- This is one explanation for why CDs are criticized for being to "bright" -
- the master tape hasn't been processed for vinyl and therefore retains
- more of the high frequency energy that was there in the original mix.
- Another twist is that maybe the master tapes are too "bright" because
- they are mixed by people whos hearing has been burned out by too
- much high level sound, and in the past this has been corrected by
- the cutting Engineer. Now that master tapes go straight to CD, this
- bias shows up in the final recording.
-
- Graeme Gill
- Design Engineer
- Labtam Australia
-
-
-