Automating DTS-HD MA vs DTS Core Comparison
You can also use following script to take care of above steps automatically: dts-hd-ma-vs-dts-core-difference.sh There are two prerequisites for the script: SoX and FFmpeg. So ensure to install them first before using the script.
The result of the script will look like:
Files generated by the script
Script usage is fairly straightforward. It accepts only one argument named FILE. Where FILE can be a MOVIE, a BLURAY DISK, or a DTS-HD MA AUDIO.
usage: ./dts-hd-ma-vs-dts-core-difference FILE [CHANNEL]
By default the script will process all DTS-HD MA channels. But you can also specify what channels to process.
To run the script for mentioned above The Dark Knight Rises (2012) movie trailer we need to type in the command line:
$ ./dts-hd-ma-vs-dts-core-difference.sh the_dark_knight_rises_2012_trailer.mkv
The script output will look like the following:
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PREPARATION STEPS
1. Searching for HD-audio stream(s) in the_dark_knight_rises_2012_trailer.mkv ☰☰ 0 sec
2. Found: Stream #0:1(eng): Audio: dts (DTS-HD MA), 48000 Hz, 5.1(side), s32p (24 bit) (default)
3. Extracting DTS-HD MA to working directory ☰☰ 0 sec
4. Extracting DTS CORE to working directory ☰☰ 1 sec
5. Splitting DTS-HD MA and DTS CORE to mono WAVs ☰☰ 6 sec
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PROCESSING FC CHANNEL
1. Calculating gain of DTS-HD MA and DTS CORE FC channel ☰☰ 0 sec
2. Normalizing DTS CORE FC channel to DTS-HD MA gain, from -23.40 dB to -23.40 dB ☰☰ 1 sec
3. Minimum audible difference is -78.05 dB. Finding the difference with 1% delta gain factor ☰☰ 0 sec
4. Minimum audible difference is -78.05 dB. Finding the difference with 0.1% delta gain factor ☰☰ 2 sec
5. Minimum audible difference is -79.68 dB. Finding the difference with 0.01% delta gain factor ☰☰ 0 sec
6. Minimum audible difference is -79.68 dB. Inverting phase and building spectrogram ☰☰ 1 sec
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PROCESSING FR CHANNEL
1. Calculating gain of DTS-HD MA and DTS CORE FR channel ☰☰ 0 sec
2. Normalizing DTS CORE FR channel to DTS-HD MA gain, from -17.94 dB to -17.94 dB ☰☰ 0 sec
3. Minimum audible difference is -73.07 dB. Finding the difference with 1% delta gain factor ☰☰ 1 sec
4. Minimum audible difference is -73.07 dB. Finding the difference with 0.1% delta gain factor ☰☰ 1 sec
5. Minimum audible difference is -79.27 dB. Finding the difference with 0.01% delta gain factor ☰☰ 1 sec
6. Minimum audible difference is -79.27 dB. Inverting phase and building spectrogram ☰☰ 1 sec
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PROCESSING FL CHANNEL
1. Calculating gain of DTS-HD MA and DTS CORE FL channel ☰☰ 0 sec
2. Normalizing DTS CORE FL channel to DTS-HD MA gain, from -18.03 dB to -18.03 dB ☰☰ 0 sec
3. Minimum audible difference is -77.42 dB. Finding the difference with 1% delta gain factor ☰☰ 1 sec
4. Minimum audible difference is -77.42 dB. Finding the difference with 0.1% delta gain factor ☰☰ 1 sec
5. Minimum audible difference is -78.61 dB. Finding the difference with 0.01% delta gain factor ☰☰ 1 sec
6. Minimum audible difference is -78.61 dB. Inverting phase and building spectrogram ☰☰ 0 sec
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PROCESSING SR CHANNEL
1. Calculating gain of DTS-HD MA and DTS CORE SR channel ☰☰ 1 sec
2. Volume levels of DTS-HD MA and DTS CORE are identical. Finding audible difference and building spectrogram ☰☰ 0 sec
3. Minimum audible difference is -81.88 dB
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PROCESSING SL CHANNEL
1. Calculating gain of DTS-HD MA and DTS CORE SL channel ☰☰ 0 sec
2. Normalizing DTS CORE SL channel to DTS-HD MA gain, from -22.08 dB to -22.08 dB ☰☰ 1 sec
3. Minimum audible difference is -79.10 dB. Finding the difference with 1% delta gain factor ☰☰ 0 sec
4. Minimum audible difference is -79.10 dB. Finding the difference with 0.1% delta gain factor ☰☰ 1 sec
5. Minimum audible difference is -81.89 dB. Finding the difference with 0.01% delta gain factor ☰☰ 1 sec
6. Minimum audible difference is -81.89 dB. Inverting phase and building spectrogram ☰☰ 1 sec
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PROCESSING LFE CHANNEL
1. Calculating gain of DTS-HD MA and DTS CORE LFE channel ☰☰ 0 sec
2. Normalizing DTS CORE LFE channel to DTS-HD MA gain, from -23.22 dB to -22.25 dB ☰☰ 0 sec
3. Minimum audible difference is -45.84 dB. Finding the difference with 1% delta gain factor ☰☰ 3 sec
4. Minimum audible difference is -48.93 dB. Finding the difference with 0.1% delta gain factor ☰☰ 1 sec
5. Minimum audible difference is -48.94 dB. Inverting phase and building spectrogram ☰☰ 1 sec
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FINALISING STEPS
1. Cleaning temporary files ☰☰ 0 sec
2. Converting WAVs to FLACs
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SUMMARY
Streams info:
DTS-HD MA 4005 Kbps 68 MB 5.1 24 Bit 48 kHz 00:02:19
DTS CORE 1509 Kbps 26 MB 5.1 24 Bit 48 kHz 00:02:19
Minimum audible difference starts at:
FC: -79.68dB
FL: -78.61dB
FR: -79.27dB
SL: -81.89dB
SR: -81.88dB
LFE: -48.94dB
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RUNNING TIME ☰☰ 28 sec
RESULTS IN ☰☰ dts-hd-ma-vs-dts-core-difference__the_dark_knight_rises_2012_trailer
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