Short: Sample audio in 8 bit from CD-ROM drives like Toshiba 3401B            
Type: mus/misc
            
           CDDARIP.DOC     DOCUMENTATION FOR CDDARIP

               Version 0.90 on May 12, 1993

    Cddarip is a new program that does the previously impossible.  It allows
one to extract audio samples directly from an audio CD (CDDA).  Until the latest
generation of drives (these expensive double speed drives), it was impossible to
read audio samples through a CD-ROM player.  Most units had provisions to play
the discs when it is not being used for computer data, and would often furnish
computer programs to emulate the buttons on a standard audio CD player.  However,
the units had their own DACs and audio was taken from a headphone or line output
connected to the drive.  
    This program is intended for the Toshiba XM-3401B drive.  It MAY work on
similar models by Toshiba, and it is rumored the Apple CD300 is a similar drive
inside.  CDDARIP has not been tested thereon.  It will not likely work on other
manufacturers units, thought the latest Sony and NEC drives could have this 
capability.
    This program came to being out of curiosity.  I had obtained the Toshiba
SCSI command manual to solve another problem(see fix_xa.lzh) and I discovered
command capability to retrieve CDDA digital audio.  I wrote a short program to
grab an arbitrary sample and save it as a raw 8 bit file.  I played back the
result and low and behold, it sounded something like the original.
    To make it usable, an interface had to be generated, and this was 70% of
the programming time.  Plus everything is in BCD and some code had to be written
to handle this.  The result is basically a CDDA control program (CDDARIP can
be used for this just fine).  This allows the user to browse his CD to set the
proper times to sample.  Then he can actually sample the data to disk.
    Data from this can be used with other programs, as it puts it out in the
standard IFF 8SVX format.  Think of it, your favorite guitar licks can come up
when there is a system message with 2.0 or above.  
    Cddarip was compiled with SAS/C ® 6.02.  It is designed to work with all
68000 family processors.  
      

REQIREMENTS:

TOSHIBA XM-3401-B or similar 3400 series drive.  Apple CD300 MAY work not tested.

SCSI Interface that supports SCSI direct.  Tested on Amiga 3000.

Headphones or amplifier/speakers on 3401's audio output.

WorkBench/Kickstart (TM Commodore-Amiga inc) 2.04 or greater.

Note: It should NOT require any CD ROM filesystem as it accesses SCSI directly.

Hard disk for saving larger samples.  

    The music industry probably has concerns about perfect duplication of CD and
other digital audio.  This will not happen with CDDArip since the quality is 
degraded to 8 bits, less than a good analogue copy.   Also the cost of media and
drives for that magnitude of data would be many times the cost of the CD in a 
record store.  
    This may be distributed by Fred Fish, and by any BBS, and any redistributable
software library.  And it may be distributed anywhere in the world.  
        
CONTACT:

    I'm on BIX, the handle is jboros.  Leave any bug reports or suggestions 
there.