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Article #1105Re: Audio quality of CDR, any theory ????
From: Stefan Kozak
Date: Fri, 18 Dec 1998 00:00
Date: Fri, 18 Dec 1998 00:00
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2293 bytes
Arny KrοΏ½ger (arnyk@flash.net) wrote: : Chung wrote in message : <1C5AE5CA0F2F9ADC.A0C451A2A5364D00.E599AFEBD487605B@library-proxy.airnews.net> : ... : >How the CD Transport could make sure the data is 100% corrected on : >real time error correction. Will it read again on error? I don't : >think so. : > : >So, this type of "error correction" could only provide : >acceptable/reasonable approximated signal output. I say it is not : >error correction. It is signal approximation only. : There are two kinds of errors on audio cd's. "Correctable" and "Concealable". : The correctable errors are precisely numerically corrected using redundant : data off the disc. slightly incorrect.. i believe the errors are determined and corrected by error correction/detection parity codes such as hamming codes. up to 2 possibly three bits can be corrected for in any 8 bit data read. (actually 12 or 13 bits (with parity)) in addition, hamming codes can be used on any word bit length.
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X-Google-Language: ENGLISH,ASCII X-Google-Thread: 109f11,48d41a4dac9741b4 X-Google-Attributes: gid109f11,public X-Google-Thread: fb1f8,48d41a4dac9741b4 X-Google-Attributes: gidfb1f8,public X-Google-Thread: 10d85e,48d41a4dac9741b4 X-Google-Attributes: gid10d85e,public X-Google-Thread: f6728,48d41a4dac9741b4 X-Google-Attributes: gidf6728,public X-Google-Thread: 10ff83,48d41a4dac9741b4 X-Google-Attributes: gid10ff83,public X-Google-Thread: 105a81,48d41a4dac9741b4 X-Google-Attributes: gid105a81,public From: skozak@vixen.cso.uiuc.edu (Stefan Kozak) Subject: Re: Audio quality of CDR, any theory ???? Date: 1998/12/18 Message-ID: <75e4j7$bon$2@vixen.cso.uiuc.edu> X-Deja-AN: 423675476 References: <753ar1$p8u$1@justice.csc.cuhk.edu.hk> <F308098DC0C8DC2F.31FD14AE39298D33.674812088DCBAA2A@library-proxy.airnews.net> <d6UPeXAfMmd2EwoM@heading.demon.co.uk> <1C5AE5CA0F2F9ADC.A0C451A2A5364D00.E599AFEBD487605B@library-proxy.airnews.net> <zbue2.2011$IO1.1954@news.flash.net> Followup-To: rec.audio.tech,rec.audio.opinion,rec.audio.misc,hk.rec.audio-visual,uk.rec.audio,tw.bbs.rec.audiophile Organization: University of Illinois at Urbana-Champaign Newsgroups: rec.audio.tech,rec.audio.opinion,rec.audio.misc,hk.rec.audio-visual,uk.rec.audio,tw.bbs.rec.audiophile