"The other guys" audio problems

[thatnerduknow]

I'm trying to rip a copy of the other guys and it seems that the rip goes off without a hitch however when playing back the file it seems fine until a few chapters in where the audio gets all glitchy and loud. I've tried to rerip it, clean the disc, do a backup all to no avail. I'm at the end of my rope here and I don't know what to do

[BuccoBruce]

I made a full disc backup years ago, probably from a Netflix rental or a Redbox purchase or something, and I'm watching it right now with PowerDVD. Audio is being bitstreamed as well, so if I was going to hear a "DTS bomb", I would've already.

Just tried to make MKVs from the disc and it looks like 00001.mpls is the theatrical cut and 00002.mpls is the unrated cut. 3.mpls/4.mpls look like dupes, same segment map, probably for some kind of BD-J thing.

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Title information
Name: Other Guys (English)
Source file name: 00002.mpls
Duration: 1:56:14
Chapters count: 16
Size: 28.6 GB
Segment count: 28
Segment map: 138,168,140,169,142,170,144,171,146,172,148,173,150,174,152,175,154,176,156,177,158,178,160,179,162,180,164,181

Is it because of this?

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MakeMKV v1.16.7 win(x64-release) started
The program can't find any usable optical drives.
Opening files on harddrive at X:/Redflix/THE_OTHER_GUYS
Using Java runtime from C:/Program Files/Java/jre1.8.0_331/bin/java.exe
File 00001.mpls was added as title #0
File 00002.mpls was added as title #1
snip
File 04999.m2ts was added as title #114
Operation successfully completed
Saving 1 titles into directory P:/Other Guys
AV synchronization issues were found in file 'P:/Other Guys/Other Guys_t01.mkv' (title #2)
AV sync issue in stream 1,2,3,4 at 0:10:04.604 with duration of 4ms : encountered overlapping frame, audio skew is +4ms
AV sync issue in stream 1,2,3,4 at 0:10:43.476 with duration of 7.833ms : encountered overlapping frame, audio skew is +11.833ms
AV sync issue in stream 1 at 0:10:43.476 : audio changes from 16bps to 24bps, you won't be able to convert this track to any other format later, please use a conversion profile with audio transcoding
AV sync issue in stream 1,2 at 0:10:43.488 with duration of 10.666ms : 1 frame(s) dropped to reduce audio skew to +1.166ms

This message and this timestamp in particular:
AV sync issue in stream 1 at 0:10:43.476 : audio changes from 16bps to 24bps, you won't be able to convert this track to any other format later, please use a conversion profile with audio transcoding

Looks like a pretty oof authoring error on Sony's part.

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General
ID                                       : 0 (0x0)
Complete name                            : X:\Redflix\THE_OTHER_GUYS\BDMV\STREAM\00138.m2ts
CompleteName_Last                        : X:\Redflix\THE_OTHER_GUYS\BDMV\STREAM\00183.m2ts
Format                                   : BDAV
Format/Info                              : Blu-ray Video
File size                                : 32.9 GiB
Duration                                 : 1 min 0 s
Overall bit rate mode                    : Variable
Overall bit rate                         : 4 658 Mb/s
Maximum Overall bit rate                 : 48.0 Mb/s

Video
ID                                       : 4113 (0x1011)
Menu ID                                  : 1 (0x1)
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.1
Format settings                          : CABAC / 2 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 2 frames
Codec ID                                 : 27
Duration                                 : 1 min 0 s
Bit rate mode                            : Variable
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive

Audio #1
ID                                       : 4352 (0x1100)
Menu ID                                  : 1 (0x1)
Format                                   : DTS XLL
Format/Info                              : Digital Theater Systems
Commercial name                          : DTS-HD Master Audio
Muxing mode                              : Stream extension
Codec ID                                 : 134
Duration                                 : 1 min 0 s
Bit rate mode                            : Variable
Channel(s)                               : 6 channels
Channel layout                           : C L R Ls Rs LFE
Sampling rate                            : 48.0 kHz
Frame rate                               : 93.750 FPS (512 SPF)
Bit depth                                : 16 bits
Compression mode                         : Lossless

Ignore the bogus 1 minute length in the MediaInfo for 138.m2ts, it's 10m05s long. First segment is 16 bit.

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General
ID                                       : 0 (0x0)
Complete name                            : X:\Redflix\THE_OTHER_GUYS\BDMV\STREAM\00168.m2ts
Format                                   : BDAV
Format/Info                              : Blu-ray Video
File size                                : 168 MiB
Duration                                 : 38 s 700 ms

Video
ID                                       : 4113 (0x1011)
Menu ID                                  : 1 (0x1)
Format                                   : AVC
Duration                                 : 38 s 872 ms

Audio #1
ID                                       : 4352 (0x1100)
Menu ID                                  : 1 (0x1)
Format                                   : DTS XLL
Duration                                 : 38 s 869 ms
Bit depth                                : 16 bits
Compression mode                         : Lossless

Second segment also 16 bit. And then at 140.mt2s it changes to 24 bit.

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General
ID                                       : 0 (0x0)
Complete name                            : X:\Redflix\THE_OTHER_GUYS\BDMV\STREAM\00140.m2ts
Duration                                 : 59 s 840 ms

Audio #1
ID                                       : 4352 (0x1100)
Menu ID                                  : 1 (0x1)
Format                                   : DTS XLL
Format/Info                              : Digital Theater Systems
Commercial name                          : DTS-HD Master Audio
Muxing mode                              : Stream extension
Codec ID                                 : 134
Duration                                 : 1 min 0 s
Bit rate mode                            : Variable
Channel(s)                               : 6 channels
Channel layout                           : C L R Ls Rs LFE
Sampling rate                            : 48.0 kHz
Frame rate                               : 93.750 FPS (512 SPF)
Bit depth                                : 24 bits
Compression mode                         : Lossless

And it changes back to 16 bit again for the next file in the segment map, 169.m2ts. I'm not about to check them all one by one, but I imagine MakeMKV suppresses the warning after it is shown once.

You've got multiple options, all but one of which are probably outside of the scope of what you're able or willing to do, and what can actually be discussed here. Just tick the "FLAC" option when you use MakeMKV for the English DTS-HD MA track on this movie. It's going to end up dithering the 24-bit segments down to 16-bit, since that's the flag on the first m2ts file and in the mpls file, so that's probably how it'll initialize flac.exe. Or if you're OK with it not being lossless select the "core" 1509 kbps DTS track only that will avoid the issue too.

Alternatively, you could use MakeMKV to output the "buggy" DTS-HD MA stream as is, and then use ffmpeg to convert the audio to pcm_s16le (will dither the 24 bit segments) or pcm_s24le (will pad the 16 bit segments with 8 useless bits and waste 33% extra space). But it'd hardly be worth the effort. Maybe eac3to can make heads or tails of it? I seem to recall using something in the past that was "smart" enough to display an error for, and properly "re-tag" a DTS-HD MA file that said it was 24 bit but was actually 16 bit. I think.

You could always output to pcm_s24le and use ffmpeg's experimental TrueHD encoder too...

Anyways, I've played back .mkv files manually spliced from multiple "versions" of a movie, with DTS-HD MA streams that actually change channel count too, from 5.1/48/16 to 7.1/48/24 and back - to restore unplastered credits and opening logos. I don't even hear a "pop" from my AVR since all the changes/splices are during digital silence, and I've yet to encounter a device or program that had trouble with them. I'm surprised this one is giving you trouble.

[danamongden]

Just tick the "FLAC" option when you use MakeMKV for the English DTS-HD MA track on this movie.

Thanks. I was having the same issue, and this fixed it.