2.0 Stereo Mix. Both L & R channel will contain different information & it will be discreet enough. For example - Dialouge, environmental sound. If the spectrogram of L & R channel is 1:1, I conclude it's a Dual Mono audio. That's my understanding so far.

But if it's not 1:1 & I couldn't hear any differance in the not identical part of L & R channels, then I am not sure? Specially if the BD advertises as a Mono 2.0 & the Spectro is not identical.
Here is an example - https://slow.pics/c/Y3vp9qJc . Here is an example of spectro of an Audio advertsied as Stereo Mix - https://slow.pics/c/iTilfeLX

Please correct me if my understanding is wrong & how you guys detect whether it's a Dual Mono or actual stereo. Thanks.

The Hunt For Red October (1990) Laserdisc [LV 32020-2L] synced to 4K UHD

Movie: The Hunt For Red October (1990)
Format: Laserdisc [LV 32020-2L]
Input Soundtrack: 16-bit, 44.1khz, Stereo (bit perfect)
Output Soundtrack: 16-bit, 44.1khz, Stereo
Ripped/Synced by: emunateD
Synced to: 4K UHD



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Hi there, I'm new and excited to be a part of this!

Clear and Present Danger (1994) Laserdisc [LV 32463-2WS] synced to 4K UHD

Movie: Clear and Present Danger (1994)
Format: Laserdisc [LV 32463-2WS]
Input Soundtrack: 16-bit, 44.1khz, Stereo (bit perfect)
Output Soundtrack: 16-bit, 44.1khz, Stereo
Ripped/Synced by: emunateD
Synced to: 4K UHD



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This is the unique MGM DVD mix of the first Terminator with changes that are not on any other mono mix.

Comparison:
https://vimeo.com/246332731

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I need help syncing up the T1 MGM DVD Mono, which has several changes that were not found in the other mono mixes, to the 2012 BD, I tried to slightly slow it down in Audacity, but it's still kind of off-sync.

Do I need to convert the ripped video framerate to 23.976 or just properly slow down the audio?

Mono differences:
https://vimeo.com/246332731

The Santa Clause (1994) Laserdisc [3633 AS] synced to 4K WEB-DL

Movie: The Santa Clause (1994)
Format: Laserdisc [3633 AS]
Input Soundtrack: 16-bit, 44.1khz, Stereo (bit perfect)
Output Soundtrack: 16-bit, 44.1khz, Stereo
Ripped/Synced by: emunateD
Synced to: 4K WEB-DL (BLUTONiUM)



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Dumb and Dumber (1994) Laserdisc [ID3004LI] synced to WEB-DL

Movie: Dumb and Dumber (1994)
Format: Laserdisc [ID3004LI]
Input Soundtrack: 16-bit, 44.1khz, Stereo (bit perfect)
Output Soundtrack: 16-bit, 44.1khz, Stereo
Ripped/Synced by: emunateD
Synced to: WEB-DL (AMZN)(Theatrical Version)



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Ace Ventura: Pet Detective (1994) Laserdisc [23000] synced to BD

Movie: Ace Ventura: Pet Detective (1994)
Format: Laserdisc [23000]
Input Soundtrack: 16-bit, 44.1khz, Stereo (bit perfect)
Output Soundtrack: 16-bit, 44.1khz, Stereo
Ripped/Synced by: emunateD
Synced to: Bluray (Warner Bros)



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v81 can finally remux Dolby Vision contend from a 4K Blu-ray. So you no longer need MKVmake for this

Quote:# Version 81.0 "Milliontown" 2023-12-02

## New features and enhancements

* mkvmerge: MPEG transport stream reader: HEVC/H.265: added support for
reading single-layer Dolby Vision from Annex B type bitstream read from MPEG
transport streams. Partially implements #3113.
* mkvmerge: MPEG transport stream reader, HEVC/H.265 elementary stream reader:
added support for reading dual-layer Dolby Vision with both the base &
enhancement layers in the same track from Annex B type bitstreams in MPEG
transport files & elementary stream files. Implements #3126.
* mkvmerge: MPEG transport stream reader: HEVC/H.265: implemented combining
dual-layer Dolby Vision with base & enhancement layers in different
tracks. Implements #3127.
* MKVToolNix GUI: multiplexer: added a new option in the preferences for
always enabling 'forced' subtitle tracks. A subtitle track is considered to
be 'forced' if: the corresponding property is set in the source file; the
track's name contains the word 'forced' (in English); deriving the 'forced
display' flag from file names is active & the file name matches the
corresponding pattern. The option is disabled by default. Implements #3627.
* MKVToolNix GUI: multiplexer: the functionality for detecting file name
sequences when adding files can now recognize the patterns used by GoPro's
cameras for chaptered video files. Implements #3633.
* xyzvc_dump: the end position of the current NALU will be output in
non-portable format as well.
* xyzvc_dump: HEVC: the tool will now also output the inner NALU type of Dolby
Vision NALUs (`unspec62` and `unspec63`).