Looking for a eac3 7.1 encoder

[tormento]

Originally Posted by tebasuna51

I don't know how pass the correct channel map (5.1.2) to Dolby Encoder Engine

How is it done with other, more friendly, software, such as Totalcode Studio or, perhaps, Dolby Media encoder? I really have no interest in 7.1 but 5.1.2 would be nice to have.

[tormento]

Originally Posted by junh1024

If you want to encode 71sh/512sh, DTSHR supports it in DTSMAS & Mainconcept Totalcode, but you may need to play with NeuralX & Speaker setup settings.

I have little (almost zero) interest in DTS but I'd like to encode Dolby Atmos from object model to 5.1.2.

[SeeMoreDigital]

Originally Posted by tormento

I have little (almost zero) interest in DTS but I'd like to encode Dolby Atmos from object model to 5.1.2.

Me too... I guess a dedicated 'Looking for an Atmos encoder' topic will now need creating...

[tebasuna51]

Like I say Mainconcept Totalcode do not offer the 5.1.2 layout, I don't know if Dolby Media encoder can do it, not Dolby Encoder Engine.

I can encode to DTSMA to C L R Ls Rs LFE Vhl Vhr (see image) and play fine in my AVR 5.1.2 like the Atmos or Audition eac3 encodes.

139.404.590  CoreAT.thd         Source TrueHD Atmos
                         7.1
 81.928.230  Core71.thd         Source without Atmos metadata
216.505.028  Core71.wav         Decoded to 71
 98.373.524  Core71.dts         Encodec to DTS-MA
 71.615.788  Core71.flac        Encodec to Flac
                         5.1.2
216.505.004  Core3D.wav         Atmos decoded to 5.1.2 with Dolby Ref Pla
117.133.232  Core3D.dts         Encodec to DTS-MA
 88.144.518  Core3D.flac        Encodec to Flac
 24.064.000  Core3D_k24.ec3     Audition recoded to 1024 Kb/s
  9.024.000  Core3D_384.ec3     Audition recoded to  384 Kb/s

I still don't know if my AVR can play 5.1.2 when it is send like PCM (from wav, decoded flac/aac/...). Don't work even with last LAV filters 0.76.1.3 and GraphStudioNext.

[pcroland]

Originally Posted by Balling

BTW. Be careful with leaked Dolby media encoder. It does not produce lossless TrueHD with stereo wav (it is mostly lossless though, I tried Plex decoder of TrueHD and ffmpeg's), did not check what happens with leaked Encoding Engine.

DME uses DEE. I think it has 3db attenuation and 90 degree phase shifting enabled just like in the xml templates for DEE, but I never used DME.

[Balling]

Originally Posted by Balling

BTW. Be careful with leaked Dolby media encoder. It does not produce lossless TrueHD with stereo wav (it is mostly lossless though, I tried Plex decoder of TrueHD and ffmpeg's), did not check what happens with leaked Encoding Engine.

IT is possible our decoder and (100%) encoder in ffmpeg is not conformal (opened https://trac.ffmpeg.org/ticket/9958)!! Plex decodes encoded with ffmpeg with the same artefacts as LG C9, very nice!

>I think it has 3db attenuation and 90 degree phase shifting enabled just like in the xml templates for DEE, but I never used DME

No, the bug is just some off-by-ones. Plex decoder and ffmpeg decoder agree (besides some zeroes in the end). Besides 3 db is just for EAC3, no...

[Balling]

Carl accepted the bug. So hope will be fixed! Mono thd is not affected.

[Balling]

So about that EAC3 sound from Justice League. I think it is correct, cause thise strange flipped channels are then decoded by Atmos in totally different places. IMHO. It created a crazy construct.

[tormento]

Originally Posted by tebasuna51

You don't need nothing to remap for the first one 5.1

I have found another 6.1+5.1 DTS HDMA. How to extract the 5.1 part?

[SeeMoreDigital]

Originally Posted by tormento

I have found another 6.1+5.1 DTS HDMA. How to extract the 5.1 part?

If your are referring to the 5.1 dts core, I use TSmuxer GUI...

[tormento]

Originally Posted by SeeMoreDigital

If your are referring to the 5.1 dts core, I use TSmuxer GUI...

I want to extract the 1509 kb/s 5.1 channel DTS.

Audio
Format                         : DTS ES XXCH XLL
Format/Info                    : Digital Theater Systems
Commercial name                : DTS-HD Master Audio
Bit rate mode                  : Variable / Constant / Constant
Bit rate                       : Unknown / 1 509 kb/s / 1 509 kb/s
Channel(s)                     : 7 channels / 7 channels / 6 channels
Channel layout                 : C L R Ls Rs LFE Cb / C L R Ls Rs Cb LFE / 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 / Lossy / Lossy

Edit: using downconvert to DTS of TSMuxer I get another 6.1 file...

Audio
Format                         : DTS ES XXCH
Format/Info                    : Digital Theater Systems
Commercial name                : DTS-ES Discrete
Duration                       : 1 h 40 min
Bit rate mode                  : Constant
Bit rate                       : 1 509 kb/s
Channel(s)                     : 7 channels / 6 channels
Channel layout                 : C L R Ls Rs Cb LFE / C L R Ls Rs LFE
Sampling rate                  : 48.0 kHz
Frame rate                     : 93.750 FPS (512 SPF)
Bit depth                      : 16 bits
Compression mode               : Lossy
Stream size                    : 1.06 GiB (100%)

[SeeMoreDigital]

Okay... Here's an example: -




Cheers

[SeeMoreDigital]

Originally Posted by tormento

I want to extract the 1509 kb/s 5.1 channel DTS.

Edit: using downconvert to DTS of TSMuxer I get another 6.1 file...

Audio
Format                         : DTS ES XXCH
Format/Info                    : Digital Theater Systems
Commercial name                : DTS-ES Discrete
Duration                       : 1 h 40 min
Bit rate mode                  : Constant
Bit rate                       : 1 509 kb/s
Channel(s)                     : 7 channels / 6 channels
Channel layout                 : C L R Ls Rs Cb LFE / C L R Ls Rs LFE
Sampling rate                  : 48.0 kHz
Frame rate                     : 93.750 FPS (512 SPF)
Bit depth                      : 16 bits
Compression mode               : Lossy
Stream size                    : 1.06 GiB (100%)

Yep... Obtaining an lossy DTS-ES core is becoming quite common... Some of my Blu-ray audio discs occasionally offer DTS 96/24 cores

[tebasuna51]

Originally Posted by tormento

I have found another 6.1+5.1 DTS HDMA. How to extract the 5.1 part?

Seems you have a DTS-MA 6.1 with a core DTS ES 6.1 also.

The core 1509 Kb/s is accepted to be passed by SPDIF and played by DVD players 5.1 only but if you want encode to AC3 you need downmix it, from the MA or from the core.

If you want encode to DDP: Audition and TotalCode have the equivalent channel layout 3/3 L R C LFE Ls Rs Cs.
Like in this century Ls/Rs is decoded to SL/SR we need remap the wav order FL FR FC LFE BC SL SR -> ...|c4=c5|c5=c6|c6=c4

[tormento]

Originally Posted by tebasuna51

The core 1509 Kb/s is accepted to be passed by SPDIF and played by DVD players 5.1 only

That's a real pity.

Originally Posted by tebasuna51

If you want encode to DDP

Yes, that's the way I will follow. It's so weird that DEE can't encode it.

[tebasuna51]

Originally Posted by tebasuna51

The core 1509 Kb/s is accepted to be passed by SPDIF and played by DVD players 5.1 only

I want say than old players can play it, but not only them of course.

[SeeMoreDigital]

I currently don't have my AVR handy (it's in the loft), but the last time I checked sending a DTS-ES bit-stream to it from my OPPO via HDMI, the 'DTS-ES' icon lit up on the AVR. Same goes with DTS 96/24 content

I didn't try the SPDIF optical or electrical outputs from my OPPO to the AVR.

[tormento]

Originally Posted by tebasuna51

If you want encode to DDP: Audition and TotalCode have the equivalent channel layout 3/3 L R C LFE Ls Rs Cs. Like in this century Ls/Rs is decoded to SL/SR we need remap the wav order FL FR FC LFE BC SL SR -> ...|c4=c5|c5=c6|c6=c4

Is your channel swapping correct for my file? TotalCode asks FL FR FC LFE BC SL SR but I have C L R Ls Rs LFE Cb in DTS file (according to MediaInfo).

[tebasuna51]

Yes.
TotalCode asks for 3/3 L R C (LFE) Ls Rs Cs, forget MediaInfo order please, when you decode the DTS to WAV/W64 the order is FL FR FC LFE BC SL SR then you need remap the BackCenter to the end (c6=c4) to match the CenterSurround

[tebasuna51]

@tormento, post moved to https://forum.doom9.org/showthread.p...43#post1977643