Dolby Vision now possible through MP4 Mux.

[djanvi2020]

question,

I don't know if this was asked before or not, im just getting back into reconverting with the new features of the scripts, when you convert Atmos to DD+ is there a way you can up the bitrate of the DD+ conversion in the Dolby Script?

Thanks!

[skull88]

question,

I don't know if this was asked before or not, im just getting back into reconverting with the new features of the scripts, when you convert Atmos to DD+ is there a way you can up the bitrate of the DD+ conversion in the Dolby Script?

Thanks!

I'll let RESET answer as to why this may not be possible with current script, but from my extensive research over the years into audio bitrates and codecs, any perception of difference in audio quality, as you hit diminishing returns for a codec (e.g. V0 MP3, highest compression low FLAC bitrate, 640kbps DDP, etc.) is almost entirely attributable to placebo effect and confirmation bias. This was true back in the day of DTS vs. Dolby debates and DVD media, and it's true today with nearly all cases of audio encoding. Obviously TrueHD Atmos is going to be better if you are able to play it on a suitably high-end system when compared to an AC3 core or streaming DD+ audio, but the same frequency distribution transcoded from TrueHD Atmos or DTS-HD -> DD+ will sound the same as long as it's not below 640kbps, if you did an ABX comparison (blind test), and the script encodes to 1024kbps or higher, so it's perfectly fine. That's my 2 cents.

[RESET_9999]

question,

I don't know if this was asked before or not, im just getting back into reconverting with the new features of the scripts, when you convert Atmos to DD+ is there a way you can up the bitrate of the DD+ conversion in the Dolby Script?

Thanks!

All the workflows encode @ 1024kbps for 7.1(EAE ) and 1536kbps for 5.1 (FFmpeg). You can disable 7.1 encodings (line 20) to get 1536kbps from any lossless source. If you delete the EAE folder, it's the same as setting line 20 to NO.
It's possible to encode 7-1 @ 1536kbps with an AC3 core in the DEE workflows but I find the quality quite bad. FFmpeg and EAE produce better(noticeable) quality IMO.

[Yoshitaka]

Which workflows would be best to convert this mkv to mp4 for C9 playback?
I'd like to keep audio highest quality possible.
I know that LG C9 has issues playing TrueHD.. Eac3 doesn't always sound the best, and the pcm conversion does? Is that right?
Should I change this to DT DL P7? Or perhaps single layer P8? Differences in video look or is it the same?

Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
HDR format : Dolby Vision, Version 1.0, dvhe.07.06, BL+EL+RPU, Blu-ray compatible / SMPTE ST 2086, HDR10 compatible
Codec ID : V_MPEGH/ISO/HEVC
Duration : 2 h 43 min
Bit rate : 56.4 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.283
Stream size : 64.3 GiB (95%)
Language : English
Default : No
Forced : No
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : Display P3
Mastering display luminance : min: 0.0050 cd/m2, max: 4000 cd/m2
Maximum Content Light Level : 997 cd/m2
Maximum Frame-Average Light Level : 382 cd/m2
Original source medium : Blu-ray

Audio
ID : 2
ID in the original source medium : 4352 (0x1100)
Format : MLP FBA 16-ch
Format/Info : Meridian Lossless Packing FBA with 16-channel presentation
Commercial name : Dolby TrueHD with Dolby Atmos
Codec ID : A_TRUEHD
Duration : 2 h 43 min
Bit rate mode : Variable
Bit rate : 3 123 kb/s
Maximum bit rate : 5 211 kb/s
Channel(s) : 8 channels
Channel layout : L R C LFE Ls Rs Lb Rb
Sampling rate : 48.0 kHz
Frame rate : 1 200.000 FPS (40 SPF)
Bit depth : 24 bits
Compression mode : Lossless
Stream size : 3.57 GiB (5%)
Title : Surround 7.1
Language : English
Default : Yes
Forced : No
Original source medium : Blu-ray
Number of dynamic objects : 11
Bed channel count : 1 channel
Bed channel configuration : LFE

[RESET_9999]

1. if it's fel and expands brightness or improves details: MP4 version + workflow 4-3

2. mel or fel that doesn't touch brightness or details: MP4 or TS version + workflow 4-2

the MP4 version always encode DDP for any lossless audio but if your file has DTS, I think the C9 supports playing the core so that might be better than DDP. TrueHD will not work and PCM is downgraded to 2 channels IIRC.

[Yoshitaka]

Would there be a benefit to doing a TrueHD to DTS-HD MA conversion in that case vs EAC3?

[RESET_9999]

The core in a DTS-HD7.1 track is only 5.1 so if you have a 7.1 audio system, DDP may be better.

[Yoshitaka]

Ok, and FLAC doesn't work with DV MP4's? Does it have undesirable results perhaps and EAC3 is just the better or best option?

[RESET_9999]

I'm not sure.

Here's an audio test file if you want to try: https://drive.google.com/file/d/1wRlklh ... drive_link

[Yoshitaka]

The TV speakers really do have good bass to it.
It seemed like the last track was the loudest and fullest on the tv speakers. Makes sense.

[tjayz]

I'm not sure when it changed, but Emby can now cast P7 DL DT or ST in any container that I tested, TrueHD 7.1 or DTS-HD MA 7.1, direct from the server to the media player via UPnP. When using the UBP-X800m2 which cannot add client apps to it, this makes Emby the only choice. I could never get Jellyfin or Kodi to work with the UBP and was always using Windows Media Player to cast FEL P7 titles with lossless audio. There is now an all in one solution that makes your library look good! Thought I'd share since I learned so much from this thread, been reading it for years on and off. Cheers!

[valington]

The core in a DTS-HD7.1 track is only 5.1 so if you have a 7.1 audio system, DDP may be better.

Hallo Reset my question is if i take mkv 7 profile dolby vision and then muxe it in ts muxer to ts container could i play it in clon oppo in ts container 7 profile dolby vision and do i get true dolby vision like in bdmv container ? Cause my friend tried it and said that this oppotunity don t work

[RESET_9999]

Hallo Reset my question is if i take mkv 7 profile dolby vision and then muxe it in ts muxer to ts container could i play it in clon oppo in ts container 7 profile dolby vision and do i get true dolby vision like in bdmv container ? Cause my friend tried it and said that this oppotunity don t work

Yes,but as noted in the excel sheet in my signature, on the x700/x800m2 and oppo, some ST P7 rip will not work.
Use workflow 4-3 to get a dual track dual layer file and all the rips will work.

[ArArdin]

It's been quite a while since using RESET_9999's scripts and I'm somewhat struggling with the current ones. My newbee apologies for asking.
Is it possible to convert a dovi P7 mkv (singletrack duallayer) into a P7 dualtrack-duallayer mp4 file? If so, can someone tell me which steps in what script?

[RESET_9999]

It's been quite a while since using RESET_9999's scripts and I'm somewhat struggling with the current ones. My newbee apologies for asking.
Is it possible to convert a dovi P7 mkv (singletrack duallayer) into a P7 dualtrack-duallayer mp4 file? If so, can someone tell me which steps in what script?

MP4 version of my script and then workflow 4-3