DTS-HD Master Audio Encoding

[TruthOverFacts]

Hello,

I am authoring a BluRay and need to convert my WAV file to DTS-HD Master Audio 2.0 Mono (48kHz, 24-bit)

From what I'm finding it looks like I have to buy Scenarist? Is this really the only option out there?

Thanks,
TOF

[bredboi]

The current option is the DTS:X encoder suite I believe. you might also still be able to get hold of the older DTS-HD Master Audio suite which would work fine for your use-case.

That said, do you really need DTS-HD MA? Blu-ray supports uncompressed PCM audio and at 2.3Mbps (for 2.0 24/48) it's usually not a huge issue to store. plus its free.

[SeeMoreDigital]

I'm with bredboi on this... Utilise the original LPCM.wav file.

[Kisa_AG]

Another option is to use Dolby TrueHD, it's also lossless.
FFMPEG can encode it.

[jpsdr]

For what i know, Scenarist is for the authoring only, it doesn't do any encode, would it be audio or video. But it's for at leat 15 years old releases. Don't know if they added such features since. Also, price of Scenarist, at the time, was around 10k$...

[mp3dom]

You don't need to buy Scenarist, DTS:X Encoding suite is listed on the Scenarist website because I think they're also selling the software (like ATEME Titan and other authoring-related softwares). But keep in mind that DTS:X is way beyond your needs, it's expensive and is MacOS only (as far as I remember). Better for you if you find a "used license" of DTS-HD Master Audio Suite.
Also, don't use ffmpeg to create Dolby TrueHD for commercial titles (if that's the case).

[jpsdr]

Also, TrueHD has huge overhead on Blu-Ray, DTS-HD is a lot better in this case when you try to optimize video Bitrate for filling your Blu-Ray at 99%...

[SeeMoreDigital]

Originally Posted by Kisa_AG

Another option is to use Dolby TrueHD, it's also lossless.
FFMPEG can encode it.

Indeed FFmpeg can encode TrueHD for Blu-ray but you will need to add a companion 'lossy' Dolby Digital stream (or core) using eac3 in order to make the stream fully Blu-ray compliant

[Lucius Snow]

TrueHD lets you specify the stereo downmix files, which is better.

[FranceBB]

Originally Posted by mp3dom

don't use ffmpeg to create Dolby TrueHD

I know that it's still experimental, but is there something still missing in the syntax/bitstream when doing

ffmpeg.exe -hide_banner -i "AVS Script.avs" -c:a truehd -ar 48000 -strict -2 -y "test.thd"

pause

that would make it not compatible with a BD Player or are there other concerns?

Alternatively a lossy E-AC3 track could be created instead and I think something like this should in theory work:

ffmpeg.exe -hide_banner -i "AVS Script.avs" -c:a eac3 -b:a 384k -ar 48000 -dialnorm -23 -dmix_mode loro -ltrt_cmixlev 0.707 -ltrt_surmixlev 0.707 -loro_cmixlev 0.707 -loro_surmixlev 0.707 -y "test.eac3"

pause

given that the open source encoder can now also write the proprietary Dolby metadata, thus making it very close to the output produced by the Dolby Media Encoder, I think. I'm not sure in terms of encoding efficiency how *good* the open source E-AC3 encoder is, but if space isn't a problem you can always crank the bitrate up to 6.14 Mbit/s (i.e -b:a 6144k) which is the maximum you can get for a 5.1 48000Hz stream which should make it basically indistinguishable from the original source.

This is the FL channel of the 5.1 of Wicked for Good encoded by the Dolby Media Encoder and the open source E-AC3 encoder in Lavc (FFMpeg) directly from the lossless PCM 24bit 48000Hz masterfile:



They're basically indistinguishable, which means that - as long as you have bitrate to spare - you should be good to go with the open source E-AC3 encoder.

[Z2697]

Originally Posted by jpsdr

Also, TrueHD has huge overhead on Blu-Ray, DTS-HD is a lot better in this case when you try to optimize video Bitrate for filling your Blu-Ray at 99%...

I remember it's the other way around

[tormento]

On reverse, I have a movie with a DTS:X track and I don't have any hw compatible with it.

Is there any way to "unpack" it as it's now possible to do with ATMOS and sort out how to convert it via DEE to some ATMOS format?

[tebasuna51]

I don't know of any free software to decode DTS:X to a format compatible with a Dolby Atmos encoder (also commercial).

@tormento: What audio equipment do you have? What speakers do you have?

[tormento]

Originally Posted by tebasuna51

What audio equipment do you have? What speakers do you have?

Old AV receiver that, at least can play THD Atmos.

[tebasuna51]

Originally Posted by tormento

Old AV receiver that, at least can play THD Atmos.

But do you have 5.1.2 speakers at least?

[tormento]

Originally Posted by tebasuna51

But do you have 5.1.2 speakers at least?

Finally yes.