Path: utzoo!attcan!uunet!wuarchive!zaphod.mps.ohio-state.edu!uwm.edu!csd4.csd.uwm.edu!info-high-audio-request
From: jfischer@scocan.sco.com (Jonathan Fischer)
Newsgroups: rec.audio.high-end
Subject: Re: hearing impairment, etc.
Message-ID: <6283@uwm.edu>
Date: 13 Sep 90 13:27:06 GMT
Sender: news@uwm.edu
Lines: 43
Approved: tjk@csd4.csd.uwm.edu

In article <6242@uwm.edu> bilver!bill@uunet.UU.NET (Bill Vermillion) writes:
>
>In article <6223@uwm.edu> scocan!sco.COM!jfischer@uunet.UU.NET (Jonathan Fischer) writes:
>>	I've always thought (seriously) that this explained why Dolby
>>noise reduction was so bad -- at least the original  ...
>...
>To disparage Ray Dolby with comments like that is worse than a cheap shot.
>If you have seen any of the pictures of the early pioneers, you will notice
>Dolby prominent in many of them, including the first Ampexes ever made.
>
>And since Dolby noise reduction came along about 25 YEARS ago your
>arguments are even more out of line.

	Cool down.  Unfog your glasses.  Take the proverbial valium.  I was
of the (mis?)impression that Ray Dolby was no spring chicken _25_years_ago_.
And even if he was 30-ish, the point could still have applied.

	I could still hear up to 19 KHz or so, two years back, in
university.  I was one of *three or four* in a class of about 100 who
could hear that high a frequency, at the volume the prof was playing it.  So
I honestly wasn't taking a cheap shot.  The bottom line is that if audio
engineers don't hear this high range of sound, than it could conceivably
show up in their work.

	All I can say is that every single Dolby NR (A & B) home recording
I've heard has mangled the high end (I'm not talking just 15K, either). 
The difference in cymbals, e.g., was quite noticeable, and unpleasant. 
Okay, so "probably" I haven't been exposed to the right decks (should've
known better than to post here :o).  If so, then I suppose my beef is that
if a manufacturer hasn't done it right, they have no business putting
the dolby switch on their deck (same goes for the "metal" EQ on the cheaper
decks).  But of course these buttons sell product.

	To put it in a more cautious, politically safe form: can someone out
there who does hear the far side of the 20-20K band testify that with a
high-end deck, a recording made with Dolby NR has no deterioration of the
high frequencies, as opposed to a recording made without Dolby?  If so, I'm
truly impressed.  (Reply by email).
-- 
Jonathan Fischer	     SCO Canada, Inc.	    Toronto, Ontario, Canada

Usenet's first law of Flamodynamics:
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