Ciao,

Tutto nasce dall'impossibile di riprodurre via NAS i video .mkv (matroska) sul mio TV: PHILIPS 40PFL8605H 3D Ready 1080p.

Il problema non sta sul video ma bensi sull'audio: pare sia impossbile riprodurre il DTS !! 

Il Firmware del TV è aggiornato all'ultima versione, quindi tocca solo sperare che i futuri rilasci di PHILIPS includano la possibilta' di riprodurre il DTS. L'AC3 viene riprodotto tranquillamente.

In rete ho trovato questo link che dimostra come convertire il video che hanno audio DTS in AC3.

Scaricare lo script via wget:

wget https://raw.github.com/JakeWharton/mkvdts2ac3/master/mkvdts2ac3.sh

se questo non dovessere essere disponbile on line scaricatelo sotto

chmod 755 per rendere lo stesso eseguibile.

zeus@zeus-workstation:~$ ./mkvdts2ac3.sh --help

mkvdts2ac3-1.5.3 - by Jake Wharton <jakewharton@gmail.com> and
                      Chris Hoekstra <chris.hoekstra@gmail.com>

Usage: mkvdts2ac3.sh [options] <filename>
Options:
     -c TITLE,        Custom AC3 track title.
     --custom TITLE
     -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.
     -f, --force      Force processing when AC3 track is detected
     -i, --initial    New AC3 track will be first in the file.
     -k, --keep-dts   Keep external DTS track (implies '-n').
     -m, --nocolor    Do not use colors (monotone).
     --md5            Perform MD5 comparison when copying across drives.
     -n, --no-dts     Do not retain the DTS track.
     --new            Do not copy over original. Create new adjacent file.
     -p PRIORITY      Modify niceness of executed commands.
     -s MODE,
     --compress MODE  Apply header compression to streams (See mkvmerge's --compression).
     -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, --verbose    Turn on verbose output
     -V, --version    Print script version information.

If you want to keep the original file untouched (such as if you are still seeding it in a torrent) and your player supports external audio tracks you can choose to leave the converted AC3 track out of the file.

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zeus@zeus-workstation:~$ ./mkvdts2ac3.sh -i LED.ZEPPELIN.CELEBRATION.DAY.Title0.mkv

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fonte:

https://github.com/JakeWharton/mkvdts2ac3/blob/master/README.md