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Old 03-02-2006, 04:00 AM   #1
Clemente
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Registered: Aug 2003
Distribution: Debian, Ubuntu
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Bad CD reading performance while grabbing audio


Hi all,

when grabbing audio cd's, I never saw more than appr. 4x speed. I tried kaudiocreator and abcde with my CD-burner and my DVD-reader device.
The encoding performance seems to be good, it is relly the grabbing part.

I think hdparm looks fine:
Quote:
/dev/hdc:
IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 1 (on)
readonly = 0 (off)
readahead = 256 (on)
HDIO_GETGEO failed: Invalid argument
Musicmatch, a windows tool, brings much more speed (starting 4x raising continously until end of track). If possible, I don't want to boot windows only to grab some CD's :-)

Does anyone know, how to speed things up?
Thanks a lot,
Clemente
 
Old 03-02-2006, 05:06 AM   #2
jomen
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Try cdda2wav instead of cdparanoia as the backend program kaudiocreator uses - this should be changable somewhere in the gui. Or do it from command line - there are tutorials with examples in them - one example is even in the man-page of cdda2wav itself.
 
Old 03-07-2006, 02:02 PM   #3
Clemente
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Registered: Aug 2003
Distribution: Debian, Ubuntu
Posts: 188

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Hi Jomen
and thanks a lot for your answer! Somehow, I didn't get an e-mail notification and missed your reply earlier... :-(

I tried cdda2wav from command-line (time cdda2wav -D /dev/hdc) with following result:
2:23 ripping time for a 5:45 song. Still no good performance.

Do you know another trick to speed this up?
Clemente
 
Old 03-08-2006, 07:16 AM   #4
jomen
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Registered: May 2004
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You might have better luck with giving the "-S X" (for setting the speed) option to cdda2wav.
But if the media only permits a certain speed - which is probable on audio-cd's, it will likely not spin any faster than this - to protect you: from read-errors and the cd: from damage due a too high speed.

I suggested cdda2wav because in standard-mode (without the -paranoia option) it is a lot faster for me than cdparanoia - because it does not use the error correction-capabilities from cdparanoia.
 
  


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