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DTS to AC3 Setup Problems

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xfiring

macrumors member
Original poster
This is a little technical. I am trying to run through this http://www.macosxhints.com/comment.php?mode=view&cid=113824
and am having the following problem, "bin is not a directory".

For some reason it is saying that usr/local/bin does not exist. It does exist I can browse to it using terminal. However, I can not do a "cd bin" as I get bin is not a directory message.

Does anyone have any idea what is going on? I am on Snow Leopard.

Here are the permission on bin:

-rwxr-xr-x@ 1 root wheel 2275152 Dec 20 10:16 bin

Here are permission on share in the same 'local' directory:

drwxr-xr-x 3 root wheel 102 Dec 20 10:45 share

As bin is missing the d and just starts with a -, is that the problem?
 
Thanks, but on yours step one I get cmake_install not found after it downloads in terminal window.
 
hpereyda said:
I get the same message on step one.

Yes I have X-code install and I am logged in as Admin and I did the mkdir.
Click to expand...

Are you guys saying that the following does not work:

mkdir /ConverterTemp
cd /ConverterTemp/
curl -O http://www.cmake.org/files/v2.8/cmake-2.8.0.tar.gz


Works for me on 10.6

about /usr/local/bin, it exists as a directory on my machine, but it is possible I added it myself (don't remember). However, you can just make a "/bin" directory in your home directory (unless other users need to do the dts2ac3 convertion). I think it automatically is added to your path when you log back in. Check:

echo $PATH

somewhere there should be a line saying:

/Users/[yourusername]/bin/

If not, add it yourself (using bash, which is terminals default):

PATH=$PATH\:/Users/[yourusername]/bin/

Now just replace all references of /usr/local/bin with /Users/[yourusername]/bin/
 
Maybe it is a Snow Leopard/Leopard thing because I am running SL on both my mini and my 27" iMac and they both worked perfectly fine just copy and pasting those commands into the terminal. Because the original guy that came up with this procedure he does say Snow Leopard on his article.
 
problem executing

Got it installed on Leopard (Snow Leopard still will not work for me). Anyways here is what I am doing:

1.) Opening terminal
2.) Typing in the following mkvdts2ac3 /Volumes/Mini Stack/moviename.mkv
3.) I get the following error no matter what I try

ERROR: You cannot supply any arguments after the filename. Please check the command syntax below against what has been parsed.
Control Flags:
Strip DTS:
Keep DTS:
Set AC3 default:
External AC3:
DTS track:
MKV file: /Volumes/Mini

Debugging Flags:
Print commands: 0
Pause after print: 0
Execute commands: 1

Usage: /usr/local/bin/mkvdts2ac3 [options] <filename>
Options:
-d, --default Mark AC3 track as default.
-e, --external Leave AC3 track out of file. Does not modify the
original matroska file. This overrides '-n' and
'-d' arguments.
-c TITLE, Custom AC3 track title.
--custom TITLE
-k, --keep-dts Keep external DTS track (implies '-n').
-n, --no-dts Do not retain the DTS track.
-o MODE Pass a custom audio output mode to libdca.
-t TRACKID,
--track TRACKID Specify alternate DTS track.
-w FOLDER,
--wd FOLDER Specify alternate temporary working directory.

--test Print commands only, execute nothing.
--debug Print commands and pause before executing each.

-h, --help Print command usage.
-v, --version Print script version information.

Thanks
 
Working fine under Snow Leopard for me, using the instructions in this link: http://www.lprestonsegoiii.com/2009/...-snow-leopard/

However, I downloaded the latest version of the script, 1.5.0 from the authors site. The one in the link is 1.3 I think.

I usually type in mkvdts2ac3 -n, then drag the file into the terminal window to get the path right.

Looks like the space in your path is what is giving you trouble. Drag the file into the terminal window instead. I still recommend downloading the latest script.
 
Thanks dragging the file works. Does anyone know what bitrate the new AC3 stream is?

Since I couldn't get this working last night I downloaded some Windows apps for the Popcorn hour called Audio Converter. It let me pick the bitrate which I maxed out at 620 kbs.

Does anyone know what the resulting files of the above scripts in Mac OSX provide?
 
Default AC3 bitrate for aften is 96k per channel, or 448 kb for 5.1.

The script can be modded to set aften to encode in 640 kb, which I have done and it is working nicely. Add -b 640 after aften -v in the script. Or do the steps manually.
 
Where in the script do I modify?

Is it here: echo "> dcadec -o wavall \"$DTSFILE\" | aften - \"$AC3FILE\""

or here: dcadec -o $AUDIOMODE "$DTSFILE" | aften - "$AC3FILE"

I don't have an aften -v the above are all I can find.

Thanks
 
And while we are at it, can we bump aften up to 1500 kbps or is 620 the max bitrate we can achieve?

Thanks.
 
xfiring said:
And while we are at it, can we bump aften up to 1500 kbps or is 620 the max bitrate we can achieve?

Thanks.
Click to expand...

640 is the max specified for Blue-Ray, 448 for DVD. 640 is working excellent in my amplifier, but I have never tested higher since that is out of spec.

If you do try I'd be interested to know if ATV accepts it and if your receiver can play it. I can't try myself since I am not at home right now.
 
xfiring said:
Where in the script do I modify?

Is it here: echo "> dcadec -o wavall \"$DTSFILE\" | aften - \"$AC3FILE\""

or here: dcadec -o $AUDIOMODE "$DTSFILE" | aften - "$AC3FILE"

I don't have an aften -v the above are all I can find.

Thanks
Click to expand...

You don't have -v since you are using an old script. Do download the latest, http://github.com/JakeWharton/mkvdts2ac3/
But in any case, its at your second line I think, like this: dcadec -o $AUDIOMODE "$DTSFILE" | aften -b 640 "$AC3FILE"

The latest version may give an error "--B not supported" or something like that, but it still works.

I hope it will work for you. After changing the script you will have to redo the following commands:
sudo chmod 755 mkvdts2ac3.sh
cp /ConverterTemp/mkvdts2ac3/mkvdts2ac3.sh /ConverterTemp/mkvdts2ac3/mkvdts2ac3
sudo cp /ConverterTemp/mkvdts2ac3/mkvdts2ac3 /usr/local/bin/
 
Works fantastic, thank you!

Do you know if you can que up many at a time, for instance open up 10 terminal windows and let each one go?? I have quite a few movies to convert.

Thanks
 
xfiring said:
Works fantastic, thank you!

Do you know if you can que up many at a time, for instance open up 10 terminal windows and let each one go?? I have quite a few movies to convert.

Thanks
Click to expand...

I have no idea. But I imagine it will go slow if it works since most of the time is spent reading the dts track and writing in the ac3 track to disk.

I'd like the script to be able to process all files in folder, one after each other.

I have had some occurences where the newly created ac3 track has been silent, or the resulting file corrupted, without error messages. It can be a good idea to have a backup or keep the dts track.
 
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