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how to rip the audio track of a DVD in 5.1 ?
Xenion
post Oct 19 2003, 18:38
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i want to rip the audio track of one of my DVDs as a 5.1 wav file and then convert it to a 5.1 Ogg file

how to do it ?
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Scidd0w
post Oct 19 2003, 18:43
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try some of the guides over here.. they should be easy to understand.. http://www.doom9.org/audio-guides.htm
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JEN
post Oct 19 2003, 21:55
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Its very easy to do, but the channels will all be coming from the incorrect speakers !

1. Its as simple as Decripting the DVD with DVD Decriptor
2. Extracting the ac3 file using DVD2AVI
3. Converting the ac3 file to Ogg Vorbis using foobar

Thants it biggrin.gif

This post has been edited by JEN: Oct 19 2003, 21:57
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rjamorim
post Oct 19 2003, 22:54
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QUOTE (JEN @ Oct 19 2003, 05:55 PM)
1. Its as simple as Decripting the DVD with DVD Decriptor
2. Extracting the ac3 file using DVD2AVI
3. Converting the ac3 file to Ogg Vorbis using foobar

You can go directly from VOB to Vorbis using BeSweet. No need for the second step.


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JEN
post Oct 19 2003, 23:01
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I have never been able to get besweet to work sad.gif

This is why I use the 3 step method.

[EDIT - My 2 step guide for ripping and converting DVD audio to 6 channel Ogg Vorbis]

Its also possible to do this without DVD2AVI and besweet smile.gif
1. DVD Decriptor - only select the audio file and make sure the demux option is selected, this will extract only the ac3 file.
2. Using foobar, convert the ac3 file to ogg.

[EDIT - But the channels are still wrong sad.gif]

This post has been edited by JEN: Oct 19 2003, 23:35
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Xenion
post Oct 20 2003, 02:41
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QUOTE (JEN @ Oct 19 2003, 11:01 PM)
I have never been able to get besweet to work sad.gif

This is why I use the 3 step method.

[EDIT - My 2 step guide for ripping and converting DVD audio to 6 channel Ogg Vorbis]

Its also possible to do this without DVD2AVI and besweet smile.gif
1. DVD Decriptor - only select the audio file and make sure the demux option is selected,  this will extract only the ac3 file.
2. Using foobar, convert the ac3 file to ogg.

[EDIT - But the channels are still wrong sad.gif]

thats true. the ac3 file i decrypted is correct. after the conversation to ogg they are wrong. how to i correct them?

and btw: thanks for helping me
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Xenion
post Oct 20 2003, 02:43
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hm the ogg file (q6) is bigger than the original ac3 file. and i guess i'm losing quality when transcoding from ac3 to ogg. so why not keep the ac3 file? i think this is the best thing you can do
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rjamorim
post Oct 20 2003, 03:05
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QUOTE (Xenion @ Oct 19 2003, 10:43 PM)
hm the ogg file (q6) is bigger than the original ac3 file. and i guess i'm losing quality when transcoding from ac3 to ogg. so why not keep the ac3 file? i think this is the best thing you can do

I think q6 is overkill for a movie, where you have more voices and sound effects than music.

And yes, you are surely losing quality when transcoding from AC3 to Vorbis. This transcoding is only worth the hassle if you get a stream considerably smaller.


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Xenion
post Oct 20 2003, 03:08
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QUOTE (rjamorim @ Oct 20 2003, 03:05 AM)
QUOTE (Xenion @ Oct 19 2003, 10:43 PM)
hm the ogg file (q6) is bigger than the original ac3 file. and i guess i'm losing quality when transcoding from ac3 to ogg. so why not keep the ac3 file? i think this is the best thing you can do

I think q6 is overkill for a movie, where you have more voices and sound effects than music.

And yes, you are surely losing quality when transcoding from AC3 to Vorbis. This transcoding is only worth the hassle if you get a stream considerably smaller.

well it's u2 live from boston dvd and i want to keep the full quality :-)
can i tag ac3 files with apev2?
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JEN
post Oct 20 2003, 09:19
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QUOTE (Xenion @ Oct 20 2003, 02:41 AM)
thats true. the ac3 file i decrypted is correct. after the conversation to ogg they are wrong. how to i correct them?

and btw: thanks for helping me

I just did some googling and apparently HeadAC3he can fix this problem, testing right now!


QUOTE (Xenion @ Oct 20 2003, 02:43 AM)
hm the ogg file (q6) is bigger than the original ac3 file. and i guess i'm losing quality when transcoding from ac3 to ogg. so why not keep the ac3 file? i think this is the best thing you can do

Keeping the ac3 is probably the best idea.


QUOTE (Xenion @ Oct 20 2003, 03:08 AM)
well it's u2 live from boston dvd and i want to keep the full quality :-)
can i tag ac3 files with apev2?

I don't think ac3 files can be tagged using foobar, I may be wrong!
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JEN
post Oct 20 2003, 09:35
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It worked, 5.1 channel Ogg Vorbis works properly (w00t)

Guide update:

1. Decript audio from DVD as explained about,
2. Using HeadAC3he, transcode to Ogg Vorbis

The channels are perfectly ordered, but I had to choose -q0 to get the file around 100Mb!
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Hanky
post Oct 20 2003, 10:07
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QUOTE (JEN @ Oct 20 2003, 12:01 AM)
I have never been able to get besweet to work sad.gif

Are you sure you dl'd the Vobinput.dll from DSPGuru's
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JEN
post Oct 20 2003, 10:15
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QUOTE (Hanky @ Oct 20 2003, 10:07 AM)
QUOTE (JEN @ Oct 20 2003, 12:01 AM)
I have never been able to get besweet to work sad.gif

Are you sure you dl'd the Vobinput.dll from DSPGuru's

That might have been the reason, but I honestly can't remember, because its been a long time since I tried to get it to work. Might try it out again later smile.gif
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mrbruno
post Oct 20 2003, 14:24
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hi ! here is a way to play your AC3 soundtracks (ripped from
movie DVDs) on a standalone player.

Basically, the trick is to author a
mini dvd on CD-R by muxing the AC3 with
a dummy Mpeg video file.

The dummy Mpeg video file I use is a blue screen
captured at 352x288. The file size is 40 Mo,
and the duration is 100 minutes.
This file has to be as small as possible of course
because there is no moving video, it's just a blue screen !
But I haven't managed yet to reduze the size...

Anyway, I muxed this Mpeg with my AC3 to make a VOB
file and author a DVD on CD-R with it, and it works !
I can read my AC3 soundtracks on my standalone dvd
player (I'm lucky enough that it can read mini DVDs)
(It's a YAMADA DVD2100, which I bought 39 Euros in France)

Any suggestion to improve this method ?
Is it possible to reduce the file size of the Mpeg?
Does someone know a better method ?
I'd like to know...
Thank you!
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chinaLi
post Oct 20 2003, 17:33
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QUOTE (Xenion @ Oct 19 2003, 09:38 AM)
i want to rip the audio track of one of my DVDs as a 5.1 wav file and then convert it to a 5.1 Ogg file

how to do it ?

QUOTE
rip the audio track of one of my DVDs as a 5.1 wav file

I use SmartRipper to complete the mission:

1.Run SmartRipper,Select "settings=>Movie=>every chapter",then you can see all chapters on DVD.

2.Get into "Stream processing",only select "Audio AC3(6ch)".

3.Specify output folder in "Target",then press "Start".

QUOTE
convert it to a 5.1 Ogg file

Use OggMachine!You will get help from Doom9.


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xmixahlx
post Oct 20 2003, 19:23
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1 google for "transcode"
1.1 install transcode, learn how to use it
2 rip the audio straight off the dvd
2.1 edit/master the audio (if needed)
3 put the audio into a container (if needed)
4 play it smile.gif


later


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yourtallness
post Oct 20 2003, 19:31
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BTW, is there any (free) AC3 encoder out there? I'd like to see how
it does at 192kbps...


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chinaLi
post Oct 21 2003, 03:19
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Maybe AAC is more suitable for 5.1ch!!


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Treefingers
post Feb 25 2004, 15:41
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QUOTE (JEN @ Oct 20 2003, 12:19 AM)
QUOTE (Xenion @ Oct 20 2003, 03:08 AM)
well it's u2 live from boston dvd and i want to keep the full quality :-)
can i tag ac3 files with apev2?

I don't think ac3 files can be tagged using foobar, I may be wrong!

Foobar 2000 can perfectly tag ac3 files (I use v0.8 beta 5) wink.gif
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tigre
post Feb 25 2004, 16:03
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QUOTE (yourtallness @ Oct 20 2003, 08:31 PM)
BTW, is there any (free) AC3 encoder out there? I'd like to see how
it does at 192kbps...

There's Nero AC3 plugin at http://neroplugins.cd-rw.org. It should work together with foobar2000 diskwriter (foo_nero) too (I haven't tested it though). It's based on ffmpeg. Doom9 audio FAQ says about it:
QUOTE
The only free encoder is part of the ffmpeg project and is quite low quality, this encoder is not recommended for anything except experimental use and is no longer supported in BeSweet.


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ChristianHJW
post Feb 25 2004, 22:05
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Transcoding the AC3, as rjamorim told you already, is only wirth the hassle if you reduce the size by at least 40% IMO. The only compression formats thats currently capable of doing this AFAIK is HE-AAC in the Nero Encoder. All other options are void, simply keep the AC3 un changed .....


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