audiocdRikHemsleyrik@kde.org2001-07-142.20.00Allows treating audio CDs like a
real filesystem, where tracks are represented as files
and, when copied from the directory, are digitally extracted from the
CD. This ensures a perfect copy of the audio
data.To see how this slave works, insert an audio CD
in your &CD-ROM; drive and type audiocd:/ into
&konqueror;. Within a few seconds you should see a list of tracks and
some directories.Audio CDs don't really have directories, but
the audiocd slave provides them as a convenience. If you look inside
these directories you will see that they all contain the same number of
tracks. If you are connected to the Internet, some directories will have
the actual track titles shown as the filenames.The reason that these separate directories exist are so that you
can choose in which format you would like to listen to (or copy) the
tracks on the CD.If you drag a track from the Ogg
Vorbis directory and drop it on another &konqueror; window
open at your home directory, you should see a progress window showing
you that the track is being extracted from the CD and
saved to a file. Note that Ogg Vorbis is a compressed format, so the
file in your home directory will appear a great deal smaller than it
would have been if you had copied the raw data.The mechanism behind this is quite simple. When the audiocd slave
is asked to retrieve a track from the Ogg
Vorbis directory, it starts extracting the digital audio data
from the CD. As it sends the data over to the file in
your home directory, it simultaneously encodes it in Ogg Vorbis format
(CD audio isn't in any particular format to start
with, it's just raw binary data.)You could also try dragging a file ending in .wav and dropping it on the &kde; Media
Player, &noatun;. In this case, the procedure that happens behind the
scenes is similar, except that instead of encoding the audio data in Ogg
Vorbis format, it is put through a very simple conversion, from raw
binary data (which the .cda files in
the toplevel directory represent) to RIFF WAV format, a
non-compressed format that most media players understand.&noatun; should quite happily play the .wav file, but if it has trouble, you may
consider using the option, explained
below.OptionsSet the path to the audio CD device, e.g.
audiocd:/=/dev/sdc.
Normally, the slave will try to find a CD drive with
an audio CD inserted, but if it fails or you have
more than one CD drive, you may want to try this
option. Note that the configuration dialog allows you to set a default
value for this option.Set the amount of error detection and correction used when
extracting data.Level 0No detection or correction. Only useful if you have a perfect
CD drive (unlikely).Level 1Enable basic error checking and correction.Level 2Default. Specifies that only a perfect extraction will be
accepted.Note that there is a disadvantage to level 2. Extraction can be
very slow, so real-time digital playback may not work properly. If you
have a good quality CD drive (note that more
expensive does not necessarily mean better quality) then you probably
won't experience very slow extraction, but a poor drive may take days
(!) to extract the audio from one CD.Specify that track names for the inserted CD
will be looked up on the Internet CD Database. Audio
CDs don't have track names, but the Internet
CD Database is a clever system which uses a special
unique identifier generated from the number and length of tracks on each
CD to cross-reference a track listing. Track listings
are contributed by the Internet community and made available to
all.You can submit your own track listings using &kscd;, the &kde;
CD player.This option is on by default. If your Internet connection is not
set up correctly, you may find that your CD tracks
don't appear. In this case, you can try
audiocd:/?=0
to switch this option off.Set the Internet CD Database server to
contact. By default, this is
freedb.freedb.org:888, which means server
freedb.freedb.org at port 888.Examplesaudiocd:/?device=/dev/scd0?paranoia_level=0&use_cddb=0Gives a listing of the tracks on the audio CD
inserted in /dev/scd0, which on
&Linux; specifies the first SCSI &CD-ROM; device. If
you copy tracks from the CD, digital extraction will
be performed without error correction or detection. No Internet
CD Database will be contacted.Frequently Asked QuestionI get The file or directory / does not
exist. How do I fix that? I have an audio
CD in my drive!Try running cdparanoia as yourself (not root). Do you see a track list? If not,
make sure you have permission to access the CD
device. If you're using SCSI emulation (possible if
you have an IDE CD writer) then
make sure you check permissions on the generic SCSI
device, which is probably /dev/sg0, /dev/sg1, etc. If it still doesn't work,
try typing audiocd:/?device=/dev/sg0 (or similar)
to tell kio_audiocd which device your &CD-ROM; is.