Re: [ecasound] Re: your mail

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Subject: Re: [ecasound] Re: your mail
From: Kai Vehmanen (k@eca.cx)
Date: Sat Sep 16 2000 - 09:49:37 EEST

On Fri, 15 Sep 2000, S. Massy wrote:

>> -pad") I want to cut the big file in separate song files with each of them
>> with a length of a multiple of 2352 bytes (due to audio-CD).
> going ahead. Suppose a 15 minutes recording that you would want to
> divide into three 5 minutes tracks:
> # ecasound -b:512 -c -f:16,2,44100 \
> -a:1,2,3 -i:whole.wav \
> -a:1 -t:300 -o:track1.wav \
> -a:2 -y:301 -t:300 -o:track2.wav \
> -a:3 -y:601 -o:track3.wav

Yup, basicly this is the way to do it, but the specific example above
won't work. -t sets a chainsetup-wide processing length, and -y
specified the starting position for last specifid audio object. So
the above example goes wrong. The correct way would be to cut one track at
a time, so something like:

# first 300 seconds
ecasound -i whole.wav -o track1.wav -t:300
# next 300 seconds
ecasound -i whole.wav -y:300 -o track2.wav -t:300
# next 300 seconds
ecasound -i whole.wav -y:600 -o track3.wav -t:300

Ecasound also direclty supports the CDDA (audio-cd) format. So...

# next 300 seconds
ecasound -i whole.wav -y:600 -o track3.cdr -t:300

...will produce a ready-to-burn cdda file (correct byte-order + padded to
2352 bytes). 

-- 
 . http://www.eca.cx ... [ audio software for linux ] /\ . 
 . http://www.eca.cx/aivastus ... [ aivastus net radio ] /\ . 
 . http://www.eca.cx/sculpscape [ my armchair-tunes mp3/ra/wav ]

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