(FLAC,TRUEHD,AC3,E-AC3,DTS)->LPCM

[litlgi74]

I am looking for the default profile that was supposed to be included in 1.7.7 to make these conversions (FLAC,TRUEHD,AC3,E-AC3,DTS)->LPCM

from... viewtopic.php?f=10&t=4776
As of version 1.7.7 following conversions are supported:
(LPCM,TRUEHD,AC3,E-AC3,DTS)->FLAC
(FLAC,TRUEHD,AC3,E-AC3,DTS)->LPCM

It doesn't appear to be in 1.15.2

Any help would be greatly appreciated.

Thanks

[Woodstock]

Where are you seeing that MakeMKV converts to LPCM?

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MakeMKV v1.7.7 ( 16.8.2012 )
 Improved handling for DVD/Blu-ray discs with mastering errors
 MakeMKV now prevents computer going to sleep mode during copy
Miscellaneous stability improvements
Max OS X changes:
 BDMV folder bundles can be selected on Mountain Lion
 Switched from GROWL to Mountain Lion notifications
Expert mode:
 MakeMKV now includes ffmpeg executable with 24-bit FLAC encoder
 New FLAC profile
Bug fixes:
 On some DVDs MakeMKV could go into endless loop when opening disc in CellWalk mode
 MakeMKV could hang (endless ASSERT) on titles with seamless branching and LPCM tracks
 Forced subtitles were extracted incompletely on certain blu-ray discs
 Aspect ratio was sometimes incorrect for H.264 SD content
 Occasionally makemkvcon executable could stay running in background even after application window was closed

Reviewing the history back as far as 1.0.1, there is no mention of LPCM encoding, just improvements in how it is handled when read.

[litlgi74]

Hello...

@mike admin specifically mentions it in this thread...

https://www.makemkv.com/forum/viewtopic.php?f=10&t=4776

[Woodstock]

Then we'll have to wait for Mike to respond, because I find no record of an "LPCM profile", but the FLAC profile has been part of MakeMKV since 1.7.7.

There is an AAC profile that was added at 1.8.8.

With the FLAC or AAC profile selected, tracks that CAN be converted show an arrow between the original track and what it will be converted to. If you can find a copy of the LPCM profile, dropping it in your MakeMKV data directory should make it available in Expert mode. Maybe someone has it somewhere?

Question: Why would you want to use LPCM instead of FLAC? I can see a desire to avoid lossy conversions, but LPCM is uncompressed, making it rather large for what you're getting.

[dcoke22]

You can create a conversion profile to specify LPCM output.

https://www.makemkv.com/forum/viewtopic.php?f=10&t=4385

After reading this guy's post https://www.makemkv.com/forum/viewtopic ... 10&t=21630 I was able to hack my own conversion profile to turn DTS-HD MA tracks into LCPM-raw. I tried it on a Blu-ray backup I had lying around and it dutifully produced a giant audio track in the resulting MKV file.

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Audio #4
ID                                       : 5
ID in the original source medium         : 4352 (0x1100)
Format                                   : PCM
Format settings                          : Little / Signed
Codec ID                                 : A_PCM/INT/LIT
Duration                                 : 1 h 59 min
Bit rate mode                            : Constant
Bit rate                                 : 9 216 kb/s
Channel(s)                               : 8 channels
Sampling rate                            : 48.0 kHz
Frame rate                               : 30.000 FPS (1600 SPF)
Bit depth                                : 24 bits
Stream size                              : 7.71 GiB (25%)
Title                                    : Surround 7.1
Language                                 : English
Default                                  : No
Forced                                   : No
Original source medium                   : Blu-ray

In the unconverted MKV, the DTS-HD MA track is only 4.2 GB. The DTS-HD MA track as FLAC is 3.6 GB as reported by MediaInfo.

If you really need LCPM, then so be it, but I think FLAC is probably a better option for most people.

[litlgi74]

You can create a conversion profile to specify LPCM output.

https://www.makemkv.com/forum/viewtopic.php?f=10&t=4385

After reading this guy's post https://www.makemkv.com/forum/viewtopic ... 10&t=21630 I was able to hack my own conversion profile to turn DTS-HD MA tracks into LCPM-raw. I tried it on a Blu-ray backup I had lying around and it dutifully produced a giant audio track in the resulting MKV file.

Code: Select all

Audio #4
ID                                       : 5
ID in the original source medium         : 4352 (0x1100)
Format                                   : PCM
Format settings                          : Little / Signed
Codec ID                                 : A_PCM/INT/LIT
Duration                                 : 1 h 59 min
Bit rate mode                            : Constant
Bit rate                                 : 9 216 kb/s
Channel(s)                               : 8 channels
Sampling rate                            : 48.0 kHz
Frame rate                               : 30.000 FPS (1600 SPF)
Bit depth                                : 24 bits
Stream size                              : 7.71 GiB (25%)
Title                                    : Surround 7.1
Language                                 : English
Default                                  : No
Forced                                   : No
Original source medium                   : Blu-ray

In the unconverted MKV, the DTS-HD MA track is only 4.2 GB. The DTS-HD MA track as FLAC is 3.6 GB as reported by MediaInfo.

If you really need LCPM, then so be it, but I think FLAC is probably a better option for most people.

I have a device that can only accept LPCM over HDMI... It is unable to decode any audio format.

[litlgi74]

Question: Why would you want to use LPCM instead of FLAC? I can see a desire to avoid lossy conversions, but LPCM is uncompressed, making it rather large for what you're getting.

I have a device, Smyth Realiser A8, that can only accept LPCM over HDMI... It is unable to decode any audio format.