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Old 17th December 2015, 13:39   #11  |  Link
frank
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Join Date: Oct 2001
Location: Germany
Posts: 785
dts->wav->mkv

I prefer professional DD 5.1 (AC3) conversion of DTS. (cinemas use Dolby Digital! Nowadays dts is only blu-ray avertising feature...) Certified DD is much better for home devices (tv, tablets, notebooks) because of switchable compression.
So far I used a simple eac3to batch file to make a 6 channel wav.
But because of the wav size (>2GB), no editor can read the wav header properly. The trick: mkvtoolnix reads big wav files, no channel mismatch! The wav file has to be muxed with mkvtoolnix to mkv. This audio mkv can be read by certified converters ->Mainconcept Totalcode Studio.

Certified Dolby Digital (ac3) files include 3 "versions" of the stream, that ffmpeg cannot:
uncompressed
standard compression (line)
heavy compression at -20 dB for noisy enviroment, notebooks etc.

with downmix params and a specified dialog level (standard -27 dB).

So I ask to add the feature to BD3D2MK3D:
Convert DTS audio tracks to WAV-MKV
for further processing.

Important eac3to parameter: -no2ndpass
Otherwise spikes require 2nd pass with lower volume. That is not necessary, you don't hear interferences.

Last edited by frank; 17th December 2015 at 15:23.
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