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Path: utzoo!linus!decvax!tektronix!uw-beaver!ubc-visi!mprvaxa!tbray
From: tbray@mprvaxa
Newsgroups: net.audio
Subject: Re: Rise time measurements of CD players-really?
Message-ID: <257@mprvaxa.UUCP>
Date: Tue, 16-Aug-83 13:32:25 EDT
Article-I.D.: mprvaxa.257
Posted: Tue Aug 16 13:32:25 1983
Date-Received: Wed, 17-Aug-83 19:27:43 EDT
References: <535@tekcad.UUCP>
Organization: Microtel Pacific Research, Burnaby BC
Lines: 19

About 18-24 months ago, a lot of cartridge/preamp/amp manufacturers were
making heavy pitches about their fantastic rise time/slew rate or whatever
you call it in their advertising.

Then Hirsch wrote an article in Stereo Review proving in a few simple
equations that the rise time necessary to accurately follow the
highest audible frequencies (just above 20Khz) were surprisingly slow - well
within the capabilities of most mid-fi stuff.  The advertising campaign
moderated noticably.

Of course Hirsch's name is probably mud in this newsgroup, because he
correctly states that the only components in any reasonable stero system
that audibly effect the sound quality are the speakers, cartridge, and
storage medium - YAY CDs.

	Not afraid to say that GOLDEN EARS == PLACEBO EFFECT

				Tim Bray,
				...decvax!microsoft!ubc-vision!mprvaxa!tbray