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Article #1126Re: Audio quality of CDR, any theory ????
From: Martin Ackroyd
Date: Mon, 14 Dec 1998 00:00
Date: Mon, 14 Dec 1998 00:00
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Brendan Heading wrote: > > In article <753ar1$p8u$1@justice.csc.cuhk.edu.hk>, Kit-pui Wong > <kpwong@psy.cuhk.edu.hk> writes > >Some people with "golden ears" claim that there are great > >differences between an original CD and its digital CDR copy. > > In theory, no, there should be no difference. The definitive way to > prove this is to first make a copy of a CD, and then get a favourite CD > player and hook the digital output up to a computer with a digital input > (SP/DIF etc). Then sample both the copy and the original and get the > computer to do a comparison. > > I reckon you'll find that they're 99% similar. > I saw a posting on an audio newsgroup a couple of years back when someone was testing the benefits of green ink or whatever. He did a bitwise comparison. He stated that there was a difference of *not one single binary digit* in the whole CD, when played with and without snake oil. [A one percent error in digital electronics would be regarded as severe malfunction] Cheers, Martin
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fb1f8,48d41a4dac9741b4 X-Google-Attributes: gidfb1f8,public X-Google-Thread: f6728,48d41a4dac9741b4 X-Google-Attributes: gidf6728,public X-Google-Thread: 109f11,48d41a4dac9741b4 X-Google-Attributes: gid109f11,public X-Google-Thread: 10ff83,48d41a4dac9741b4 X-Google-Attributes: gid10ff83,public X-Google-Thread: 10d85e,48d41a4dac9741b4 X-Google-Attributes: gid10d85e,public X-Google-Thread: 105a81,48d41a4dac9741b4 X-Google-Attributes: gid105a81,public From: Martin Ackroyd <martin.ackroyd@virgin.net> Subject: Re: Audio quality of CDR, any theory ???? Date: 1998/12/14 Message-ID: <367551ED.6E6CB492@virgin.net> X-Deja-AN: 422266379 Content-Transfer-Encoding: 7bit References: <753ar1$p8u$1@justice.csc.cuhk.edu.hk> <7582eFA8uVd2Ewdq@heading.demon.co.uk> To: Brendan Heading <brendan@NOSPAMheading.demon.co.uk> Content-Type: text/plain; charset=us-ascii Organization: at home Mime-Version: 1.0 Reply-To: martin.ackroyd@virgin.net Newsgroups: rec.audio.tech,rec.audio.opinion,rec.audio.misc,hk.rec.audio-visual,uk.rec.audio,tw.bbs.rec.audiophile