Audio CD iso from wav files on the shell

graysky · 2012-07-02 20:28:22

I googled around for this but haven't found a solution. I want to take a directory of wav files and write them to an iso file that can be burned off to a CD (a functional audio CD) at a later time. Closest I found is using /usr/bin/genisoimage but it doesn't make an audio CD image, rather, just a data iso.

genisoimage -o test.iso ./music/*.wav

karol · 2012-07-02 22:31:51

I haven't tried it:
http://linuxdevcenter.com/pub/a/linux/2 … tml?page=2

cdrecord -v speed=2 dev=0,0 -audio /home/dlphilp/soundfiles/cd-audio/my_songs/*.wav

Edit: Argh, you wanted to burn it later. Sorry, back to the drawing board.

Edit 2: Have you tried the cue + bin pair instead of an iso?

Last edited by karol (2012-07-02 22:53:29)

graysky · 2012-07-03 00:22:44

Love to, but it has to be from the shell... any ideas there?

EDIT: Getting closer I think. Using sox to convert flac files to .cdda files and then make a toc file:

find . -type f -name *.flac | parallel sox {} {.}.cdda
for file in *.cdda; do echo "TRACK AUDIO" >> toc; echo "FILE \"$file\" 2" >> toc; done

Now cdrdao can be used to write out to a CDR drive... now to figure out how to redirect to an iso file???

Source: http://duganchen.ca/burning-gapless-audio-cds-in-linux/

Last edited by graysky (2012-07-03 00:50:45)

karol · 2012-07-03 00:51:37

Install shntool and cdrdao.

$ shntool cue *.wav > foo.cue
$ shntool join *.wav
$ cdrdao write --device /dev/sr0 foo.cue

Test it

$ mplayer cdda://
<blah blah blah>
Playing cdda://.
Found audio CD with 2 tracks.

Track 1
Detected file format: rawaudio
<forwarded a bit>
A: 347.8 (05:47.7) of 642.2 (10:42.1)  1.7% 

Track 2
A: 350.0 (05:50.0) of 642.2 (10:42.1)  1.8%

graysky · 2012-07-03 00:55:13

@karol - right but I don't want to actually write the it out to physical media; I want to keep it as an iso file so I can mount it via:

$ sudo mount -o loop /path/to/foo.iso /mnt/fake_cd

It's like I need cdrdao to support a null device or image writing mode which I can't find documented

Last edited by graysky (2012-07-03 00:56:04)

karol · 2012-07-03 01:12:41

I'm confused. You can't mount an AudioCD, not sure if it's possible with an "AudioCD image".

What exactly are you trying to do?

graysky · 2012-07-03 01:15:46

I want to mount the image as a virtual CD for the wife to get the files into iTunes for her damn iPod. There is software for windows that allows mounting in this fashion.

graysky · 2012-07-03 01:52:25

OK... your suggestion worked. Now how can I automate this on a per-directory basis? In other words, starting in /path/to/music go into each directory and execute each of the following commands.

bincue() {
  shntool cue *.flac > foo.cue
  shntool join *.flac
  }

I was thinking something like the following but it doesn't work:

$ find /path/to/music -type d | parallel cd {} && bincue

EDIT: Seems like daemontools can mount a wav/cue as a drive such that itunes can then access it to encode. A pure Linux solution would be preferred, but opensource aac encoders are inferior to the codec itunes uses per my reading.

Last edited by graysky (2012-11-06 21:04:25)

Darksoul71 · 2012-07-03 20:51:48

graysky,

to my limited knowledge ISO files are not capable of dealing with multiple audio tracks inside the image. Bin / cue is the way to go here.

If you know a bit python you might want to check out the two script I posted a few days ago.

Simply check out:
https://bbs.archlinux.org/viewtopic.php?id=56646&p=74
My posting is #1939

On script generates M3U files based on recursive MP3 search inside each subdirectory while the other shows parallel MP3 encoding in multiple ffmpeg processes. I guess you could easily modify my recurseM3U script to do your per-directory stuff.

While I know that it is cool to do stuff with one or two simple bash commands inside one line, it is often more effective to use a few more lines Python or Perl.

Just my two cents,
D$

P.S.: Let me know if I can help...

Last edited by Darksoul71 (2012-07-05 12:17:02)

karol · 2012-07-03 20:57:05

Darksoul71 wrote:

https://bbs.archlinux.org/viewtopic.php?id=56646&p=74
My posting is #1939

It's #1839: https://bbs.archlinux.org/viewtopic.php … 9#p1123189
The link to a specific post is "hidden" under time/date of the post - move your mouse over it to get the url to copy, bookmark etc.

Darksoul71 · 2012-07-03 21:01:57

Ah ! Thanks, you never stop to learn things
I have no clue why I mentioned the wrong number though....
Thanks karol...

Last edited by Darksoul71 (2012-07-05 12:22:25)

Darksoul71 · 2012-07-05 14:30:16

graysky,

this is how a simplified single process script could look like:

#!/usr/bin/python
import os

# Grab all subdirectories within the current directory 
search_sub ="find ./* -type d"

dirlist = []

for subdir in os.popen (search_sub):
  dirlist.append(os.getcwd() + subdir[1:-1] + '/')

for cur_dir in dirlist:
  os.chdir (cur_dir)
  os.popen ("shntool cue *.flac > foo.cue")
  os.popen ("shntool join *.flac")

You might want to give it a shot at a trial copy of your audio directories.

Edit:

A quick prototype for multiple encoding processes:

#!/usr/bin/python
import os
import multiprocessing

def bincue ():
  while not q.empty():
    cur_dir = q.get()
    os.chdir (cur_dir)
    os.popen ("shntool cue *.flac > foo.cue")
    os.popen ("shntool join *.flac")
 
# Init Queue for found sudirectories
q = multiprocessing.Queue()

# Grab all subdirectories within the current directory 
search_sub ="find ./* -type d"

for subdir in os.popen (search_sub):
  q.put (os.getcwd() + subdir[1:-1] + '/')

cores=multiprocessing.cpu_count()

for i in range (cores):
  process = multiprocessing.Process(target=bincue, args=())
  process.start()

Last edited by Darksoul71 (2012-07-05 14:47:54)

graysky · 2012-07-06 01:32:59

Thanks for the offer, ds. Makes me wanna learn python.

Darksoul71 · 2012-07-06 04:50:41

You are welcome ! Python is really easy to learn. A bit of OOP knowledge will not hurt though.
Just drop me a PM if I can help. I tested the script so far to tell that it changes into the found sub-directory.
I did not test the part with the shmtool though.

Arch Linux

#1 2012-07-02 20:28:22

Audio CD iso from wav files on the shell

#2 2012-07-02 22:31:51

Re: Audio CD iso from wav files on the shell

#3 2012-07-03 00:22:44

Re: Audio CD iso from wav files on the shell

#4 2012-07-03 00:51:37

Re: Audio CD iso from wav files on the shell

#5 2012-07-03 00:55:13

Re: Audio CD iso from wav files on the shell

#6 2012-07-03 01:12:41

Re: Audio CD iso from wav files on the shell

#7 2012-07-03 01:15:46

Re: Audio CD iso from wav files on the shell

#8 2012-07-03 01:52:25

Re: Audio CD iso from wav files on the shell

#9 2012-07-03 20:51:48

Re: Audio CD iso from wav files on the shell

#10 2012-07-03 20:57:05

Re: Audio CD iso from wav files on the shell

#11 2012-07-03 21:01:57

Re: Audio CD iso from wav files on the shell

#12 2012-07-05 14:30:16

Re: Audio CD iso from wav files on the shell

#13 2012-07-06 01:32:59

Re: Audio CD iso from wav files on the shell

#14 2012-07-06 04:50:41

Re: Audio CD iso from wav files on the shell

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