On Sunday January 5 2003 09:17 pm, Larry Sword wrote:
> I would read the CD-Writing-HOWTO-3.html before setting up a
> session to demo linux cdrecord.
> The section 3.2 Writing audio CD's has the full procedures for
> writing audio cd's including the syntax for converting mp3's and
> writing the audio cd's. Something like:
>
> ----------------- Quote
> -------------------------------------------------------------------
>---------------------
>
> To create a CD-R from a whole bunch of MP3-files, you can use the
> following command sequence:
>
>
> for I in *.mp3
> do
> mpg123 --cdr - "$I" | cdrecord -audio -pad -nofix -
> done
> cdrecord -fix
>
>
> Depending on the speed of your machine, you may want to slow down
> writing to "speed=1" (cdrecord option). If you use "speed=4", your
> machine must be able to play the MP3-file at quadruple speed.
> mpg123 consumes much CPU-time! If you are in doubt, try an empty
> run with -dummy (keeps the laser switched off).
I agree with Larry, the CDR-howto should be required reading.
There's problems with burning mp3's directly to audio CD's tho. Even
if it's successful, the sound quality of the resulting audio CD
sort'a usually sux. Here's what I do to create the best possible
CD's. As <user>,
o Check for bad mp3's, 'mp3_check *' (mp3_check-1.98-3mdk)
This is very quick and worth doin.
o I use Xmms' disk-writer plugin to convert the mp3's to wav's.
It's fast and you can hi-lite all the mp3's in the playlist window to
get the total time, ie, make sure they'll fit on a 80 (or 74) min
CDr.
o Then in the dir where the wav's are, 'normalize -m *'
(normalize-0.7.6-1mdk). That will equalize the wav's to a common
sound level and greatly improve the quality of the audio CD.
This is also fairly quick. I've found tho, if there's large
differences in the wav (mp3) sound levels, it may be neccessary to
run normalize on 'em 2 or 3 times, until the ouput is 'already
normalized, not adjusting'.
o In the wav dir, simply typing 'bacd' makes the audio CD.
alias bacd='cdrecord -v -eject speed=8 dev=0,3,0 -pad -audio *.wav'
All this doesn't take any longer than setting up to do it with
any GUI, and it will produce much better results, and no coasters ;)
MOF, using cdparanoia to rip store bought CD's to wav's, then
normalizing 'em, will produce better CD's than the store sold ya ;)
--
Tom Brinkman Corpus Christi, Texas
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