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- From: tomb@hplsla.hp.com (Tom Bruhns)
- Date: Fri, 24 Jul 1992 20:47:28 GMT
- Subject: Re: Audio CD to digital data?
- Message-ID: <18770004@hplsla.hp.com>
- Organization: HP Lake Stevens, WA
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!sdd.hp.com!hp-cv!hp-pcd!hplsla!tomb
- Newsgroups: comp.sys.amiga.audio
- References: <1992Jul22.123104.13905@vax5.cit.cornell.edu>
- Lines: 23
-
- ridder@zso.dec.com (Hans Ridder) writes:
-
- >et5j@vax5.cit.cornell.edu (Mario Giannella) writes:
- >>Are there any hardware/software packages to allow one to put an audio
- >>Compact Disc into a CD-ROM drive, and get a direct digital data file?
- >
- >CDROM drives (apparenly all of them) will *not* allow you to read the
- >data bits from an audio track, unless the "copying allowed" bit is set
- >in the Table of Contents (TOC) on the CD. I've never heard of any audio
- >CD with this bit set.
-
- This may be true, but it's pretty simple on most (maybe not quite all)
- audio CD players to capture the data which is sent to the D/A converter.
- This is almost always done as a serial bit stream with a strobe to
- indicate the appropriate word is shifted in. So, if you don't
- mind "drinking from a firehose," you should be able to capture the
- data digitally fairly easily, given just a bit of technical hardware
- dinking. Beware of oversampling; you could end up with 8 or more
- times the usual 44kHz sampling rate.
-
- Sony, at least, will even provide a "service manual" which
- includes a schematic, for a fee.
-
-