extract audio from a dvd [solved!]

Message

zojas · Post by **zojas** » Fri Jun 11, 2004 9:44 pm

I bought an audio cd which came with a dvd. the dvd contains two previously-unreleased audio recording (as dvd video, they are each a chapter).

so how can I extract just the audio, and preferably save it to my hard drive as a wav file, just like I had ripped it from an audio cd with cdparanoia?

I found a hit on the web which said to use transcode like this:

Code: Select all

transcode -i /dev/dvd -x dvd -T 1,6 -a 0 -y wav -m track6.wav

to get chapter 6 of title 1. I tried that, but the resulting wav file just played as static

do you think it's because the dvd is encrypted?

If so, I got chapter 6 and chapter 7 (the two songs) decrypted and extracted to their own little vob directories on my hard drive (using a free software program I found for OS X) but then I couldn't figure out how to get transcode to use the resulting VOB directory. (transcode seems to have very little documentation)

thanks

Post by **NeddySeagoon** » Fri Jun 11, 2004 11:18 pm

zojas,

Use mplayer. The man page contains a command to do just what you want. I recall the example pipes the audio through lame, so you end up with an ogg or mp3 but you don't have to do that.

You may need to resample the audio to get a wav you can listen to. DVD audio is sampled at 48kHz and a wav file is like a CD at 44.1 kHz

Post by **NeddySeagoon** » Fri Jun 11, 2004 11:27 pm

zojas,

Use mplayer. The man page contains a command to do just what you want. I recall the example pipes the audio through lame, so you end up with an ogg or mp3 but you don't have to do that.

You may need to resample the audio to get a wav you can listen to. DVD audio is sampled at 48kHz and a wav file is like a CD at 44.1 kHz

sploo22 · Post by **sploo22** » Sat Jun 12, 2004 1:35 am

If you're getting static, try adding the "-d" option to transcode. That might fix the problem.

Regor · Post by **Regor** » Sat Jun 12, 2004 6:38 am

I second the recommendation for mplayer. I use a command that looks like this:

Code: Select all

TITLE=1
CHAPTER=3-3
mplayer dvd://$TITLE -chapter $CHAPTER -vo null -vc dummy -ao pcm -srate 44100 -aofile $TITLE-$CHAPTER.wav

Set TITLE and CHAPTER to appropriate values for whatever you want to rip.

zojas · Post by **zojas** » Sat Jun 12, 2004 3:00 pm

Since I already had transcode in my history list, I tried adding the '-d' flag. that did the trick.

here's the exact commands I used:

Code: Select all

transcode -d -i /dev/cdrom -x dvd -T 6,1,1 -a 0 -y wav -m track6.wav
transcode -d -i /dev/cdrom -x dvd -T 7,1,1 -a 0 -y wav -m track7.wav

I'm sure mplayer would have worked too, and next time I'll give that a try.

thanks.

dhewton · Post by **dhewton** » Wed May 17, 2006 5:59 am

Can you help me?

I have ripped a dvd to my drive, and would like to know how to extract just the audio so I can make wav or mp3 files.

The DVD is a musical, and I would like to make an audio cd of the the whole DVD.

Thanks

Dan

zojas · Post by **zojas** » Wed May 17, 2006 1:31 pm

either of the two commands above should work. you just need to change the input source. in transcode, change the /dev/cdrom part (and possibly the 'dvd' part too?) and of course then run it for all chapters. in mplayer, change the dvd:// part to the path to where the files are (and then run it for all chapters)

Centinul · Post by **Centinul** » Fri May 19, 2006 2:55 pm

How long did it take to do it with transcode? Mine is just sitting there and i have no idea whether it is doing anything or not. I ran the same transcode command that you gave in the post above. Thanks!

zojas · Post by **zojas** » Fri May 19, 2006 9:43 pm

no idea, that was 2 years ago!

if I had to guess, I'd say about as long as it would take to listen to it. I was only grabbing 2 tracks, 1 at a time. one thing you can do is in another window go to the directory and use ls -latrh a few times to see if it's producing any output

optiluca · Post by **optiluca** » Sat May 20, 2006 12:45 pm

Hi. I was looking for a way to extract audio from a DVD and I found this. Unfortunately when I try to do it with mplayer I get:

Code: Select all

mplayer dvd://1 -chapter 3 -vo null -vc dummy -ao pcm:file=U2.wav -srate 44100
MPlayer dev-CVS-060415-00:32-3.4.6 (C) 2000-2006 MPlayer Team
CPU: Advanced Micro Devices Athlon 64 X2 Manchester,Toledo (Family: 15, Stepping: 2)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx SSE SSE2



91 audio & 208 video codecs
Opening joystick device /dev/input/js0
Can't open joystick device /dev/input/js0: No such file or directory
Can't init input joystick
Playing dvd://1.
Reading disc structure, please wait...
There are 1 titles on this DVD.
There are 40 chapters in this DVD title.
There are 1 angles in this DVD title.
DVD successfully opened.
MPEG-PS file format detected.
VIDEO:  MPEG2  720x576  (aspect 3)  25.000 fps  9800.0 kbps (1225.0 kbyte/s)
File not found: '/home/luca/.mplayer/default.sub'
Failed to open /home/luca/.mplayer/default.sub
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
Cannot find codec 'dts' in libavcodec...
ADecoder init failed :(
ADecoder init failed :(
Opening audio decoder: [hwac3] AC3/DTS pass-through S/PDIF
No accelerated IMDCT transform found
hwac3: switched to DTS, 768000 bps, 48000 Hz
AUDIO: 48000 Hz, 2 ch, ac3, 768.0 kbit/50.00% (ratio: 96000->192000)
Selected audio codec: [hwdts] afm: hwac3 (DTS through S/PDIF)
==========================================================================
==========================================================================
Forced video codec: dummy
Cannot find codec matching selected -vo and video format 0x10000002.
Read DOCS/HTML/en/codecs.html!
==========================================================================
[format] Sample format big-endian AC3 not yet supported
Error at audio filter chain pre-init!

Exiting... (Fatal error)

And with transcode:

Code: Select all

transcode -d -i /dev/cdrom -x dvd -T 6,1,1 -a 0 -y wav -m track6.wav
transcode v1.0.2 (C) 2001-2003 Thomas Oestreich, 2003-2004 T. Bitterberg
Invalid title 6.
(probe_dvd.c) failed to probe DVD title information
[transcode] auto-probing source /dev/cdrom (failed)
[transcode] V: import format    | unknown  (V=dvd|A=(null))
[transcode] V: import frame     | 720x576  1.25:1
[transcode] V: bits/pixel       | 0.174
[transcode] V: decoding fps,frc | 25.000,0
[transcode] V: Y'CbCr           | YV12/I420
[transcode] A: import format    | 0x2000  AC3          [48000,16,2]
[transcode] A: export format    | 0x55    MPEG layer-3 [48000,16,2]  128 kbps
[transcode] V: encoding fps,frc | 25.000,3
[transcode] A: bytes per frame  | 7680 (7680.000000)
[transcode] A: adjustment       | 0@1000
[transcode] A: swap bytes       | yes
[transcode] V: IA32/AMD64 accel | sse3 (sse3 sse2 sse 3dnowext 3dnow mmxext mmx asm C)
tc_memcpy: using amd64 for memcpy
[transcode] V: video buffer     | 10 @ 720x576
[import_dvd.so] v0.4.0 (2003-10-02) (video) DVD | (audio) MPEG/AC3/PCM
[export_wav.so] v0.2.3 (2003-01-16) (audio) WAVE PCM
Invalid title 6.
[import_dvd.so] failed to read DVD information
audio import module error: OPEN failed
[transcode] critical: failed to open input source

But the DVD is in my cdrom drive...

Any help??

Thanks in advance

Luca

optiluca · Post by **optiluca** » Sun May 21, 2006 2:19 pm

Tried another DVD, which works with Mplayer, but the whole disc gets converted....
I'm using this command:

Code: Select all

mplayer dvd://1 -chapter 3-3 -vo null -vc dummy -ao pcm:file=U2.wav -srate 44100

PS: The .wav volume is also VERY low. Is there any way to extract the audio at a higher volume?

zojas · Post by **zojas** » Mon May 22, 2006 12:56 am

transcode had no volume issues for me.

optiluca · Post by **optiluca** » Mon May 22, 2006 12:00 pm

But, as I've already pointed out, transcode doesn't work at all with me...
Why on earth doesn't it recognize the DVD????