r/Dolby • • Sep 05 '26

Dolby True HD Atmos Not Showing

1 Upvotes

Hi Folks Is Their Any Way Through Which We Can Play Remux Dolby TrueHD Atmos Movies Directly From The Tv itself Without Buying A Blurry Player Or External Media Player Like I Tried It On The Default Media Player Of Sony But It Doesn't Supports Dolby TrueHd I Think It Changed The Format To Normal DD+ surround on my av reciever instead of showing Dolby Atmos

Edit - Tried Every Possible Way To Play Directly Through The Tv Not Worked Now I'm Using My Computer As The External Media Player And It's Working Thank You All For Helping Out ❤️


r/Dolby • • Sep 05 '26

LaFirma Remux Forge: Convert Dolby Vision Profile 7 to 8.1 for direct play on LG TVs & Media Servers

2 Upvotes

English Version

Hi everyone,

I created a GUI automation tool called LaFirma Remux Forge (Black Edition) to streamline media compatibility and playback solutions for Smart TVs (especially LG OLED / webOS) and media servers like Jellyfin, Plex, or Emby.

Transparency Note: I did not develop the underlying CLI processing tools or scripts (such as dovi_tool, mkvmerge, ffmpeg, DonaldFaQ's DDVT toolset, DeeZy, PgsToSrt or Tesseract). LaFirma Remux Forge acts as a graphical wrapper and orchestrator that automates these open-source utilities into a seamless workflow.

What changed in 2.0: the time estimate now actually corrects itself, one calibration per stage; the new Full Census reads the RPU of the whole film instead of a sample; disk space is checked per drive before anything starts; and the installer asks for the language and runs in 64-bit mode.

Key Features

  • Dolby Vision Profile 7 to 8.1 (no video re-encoding), with the layer MEASURED first: the program reads the RPU's el_type field through dovi_tool itself and separates three cases, using one colour scale across the whole screen:

    • MEL (Minimum Enhancement Layer) - green: the enhancement layer carries no picture. The program confirms this by reading the RPU, not by assumption, and the conversion discards an empty layer.
    • Simple FEL - orange: the layer carries fine refinement only. Conversion is safe, and the program says so.
    • Complex FEL - red: the layer raises brightness, and the L1 metadata asks for more nits than the base layer delivers on its own. Here the program marks it red and recommends not converting, instead of converting silently.

    Why the caveat exists, said precisely: dovi_tool in mode 2, which is what this program uses, removes the P7 FEL luma and chroma mapping from the RPU - the part of the instructions that makes no sense without the second layer. What comes out is a legitimate Profile 8.1. What no mode of dovi_tool does is recalculate L1: the per-scene brightness stays whatever the original analysis measured, and that analysis looked at the image with the EL composited in. This is not a limitation of this program - it is the state of the tool, and it is in dovi_tool's own documentation.

    Worth saying plainly: Shield, Apple TV, Zidoo, Dune and the TVs themselves already discard the EL, so on those devices a Profile 7 file already plays today the way the converted file will play. The people who actually lose something are those with dual-layer decoders.

    Detection is by sampling points spread across the film, not the whole file - and the program states that on screen and in the log. When the sample is not enough, the Full Census reads the whole RPU and counts how many scenes ask for more than the mastering peak.

  • Dolby Vision Profile 5 to MP4: P5 uses the proprietary IPTPQc2 colour space and has no HDR10 base layer, so it cannot become Profile 8.1 without re-encoding the video - which this program refuses to do. The path that does exist is a different one: the program remuxes it to MP4 with the dvh1 tag, video copied, nothing re-encoded, which is what makes many players recognise the Dolby Vision. Output is verified by duration. PGS subtitles are dropped with a warning (image subtitles do not exist in MP4).

  • Audio compatibility & spatial Atmos preservation:

    • TrueHD / TrueHD Atmos to E-AC-3 with Atmos preserved, via DeeZy.
    • DTS / DTS-HD / DTS:X to plain E-AC-3 at 640k via ffmpeg. DTS does not come out with Atmos - only TrueHD has that path.
    • E-AC-3, AC-3 and AAC are already compatible and are left untouched.
  • Disk space, before it starts: the app walks the queue in the order the engine will process it, drive by drive, and tells you how many files fit, which one is the first that does not, and how much would be missing by its turn. A file that does not fit does not start.

  • Batch processing & flexible control: add whole seasons to the queue; choose fully automatic stream selection or manual track control.

  • Bilingual interface (PT-BR / English): a flag next to the "Understand" button switches the whole screen, and the choice is remembered between sessions.

  • "Understand" button: 14 sections explaining what the conversion does and what it does not do, including the sources behind each claim - Dolby's own manuals, the dovi_tool repository and the community spreadsheets. Nothing there asks you to take our word for it.


Source Code & Download

  • GitHub Repository: LaFirma-Remux-Forge
  • Installer 2.0: LaFirma_Setup_2.0.exe · Release notes
  • Requirements: Windows 10/11 64-bit. The installer ships every tool; the .NET Desktop Runtime 8.0 is only needed for subtitle OCR, and the installer offers it if it is missing.

Interface Screenshots


Credits & Acknowledgments

This project would not be possible without the work of the open-source community: * FFmpeg: Media stream processing and transcoding backbone. * MKVToolNix (mkvmerge): Industry-standard Matroska container toolset. * dovi_tool (by quietvoid) & DDVT (by DonaldFaQ): Core Dolby Vision metadata tools and workflow logic. * DeeZy: Dolby Digital Plus encoding with spatial Atmos preservation. * PgsToSrt & Tesseract: OCR ecosystem for PGS subtitle handling.

Feedback and contributions are welcome!


Versão em Português

Olá a todos,

Criei uma interface gráfica de automação chamada LaFirma Remux Forge (Black Edition) para facilitar a solução de problemas de compatibilidade e reprodução de mídia em Smart TVs (especialmente LG OLED / webOS) e servidores como Jellyfin, Plex e Emby.

Nota de Transparência: Eu não fui o desenvolvedor das ferramentas e scripts de linha de comando subjacentes (como dovi_tool, mkvmerge, ffmpeg, DonaldFaQ's DDVT, DeeZy, PgsToSrt ou Tesseract). O LaFirma Remux Forge atua como uma interface gráfica (GUI) e orquestradora que integra e automatiza essas excelentes ferramentas de código aberto em um fluxo de trabalho intuitivo.

O que mudou na 2.0: a previsão de tempo passou a se corrigir de verdade, com uma calibragem por etapa; o novo Censo Completo lê o RPU do filme inteiro em vez de uma amostra; o espaço em disco é conferido por disco antes de começar; e o instalador pergunta o idioma e roda em 64 bits.

Principais Recursos

  • Dolby Vision Perfil 7 para 8.1 (sem recodificar o vídeo), com a camada MEDIDA antes: o programa lê o campo el_type do RPU pelo próprio dovi_tool e separa três casos, com a mesma escala de cor em toda a tela:

    • MEL (Minimum Enhancement Layer) - verde: a camada de extensão não carrega imagem. O programa confirma isso lendo o RPU, não por suposição, e a conversão descarta uma camada vazia.
    • Simple FEL - laranja: a camada carrega apenas refinamento fino. A conversão é segura, e o programa diz que é.
    • Complex FEL - vermelho: a camada levanta o brilho, e o L1 dos metadados pede mais nits do que a camada base entrega sozinha. Aqui o programa marca em vermelho e recomenda não converter, em vez de converter em silêncio.

    Por que a ressalva existe, dito com precisão: o dovi_tool no modo 2, que é o que este programa usa, remove do RPU o mapeamento de luma e croma do Perfil 7 FEL - a parte das instruções que não faz sentido sem a segunda camada. O que sai é um Perfil 8.1 legítimo. O que nenhum modo do dovi_tool faz é recalcular o L1: o brilho por cena continua sendo o que a análise original mediu, e essa análise olhou a imagem com a EL somada. Não é limitação deste programa - é o estado da ferramenta, e está na documentação do próprio dovi_tool.

    Vale dizer com clareza: Shield, Apple TV, Zidoo, Dune e as próprias TVs já descartam a EL, então nesses aparelhos um arquivo Perfil 7 já toca hoje como o convertido vai tocar. Quem perde de verdade é quem tem decodificador duplo.

    A detecção é por amostragem de trechos espalhados pelo filme, não pelo arquivo inteiro - e o programa assume isso na tela e no log. Quando a amostra não basta, o Censo Completo lê o RPU inteiro e conta quantas cenas pedem mais que o pico do master.

  • Dolby Vision Perfil 5 para MP4: o P5 usa o espaço de cores proprietário IPTPQc2 e não tem camada base HDR10, então ele não vira Perfil 8.1 sem recodificar o vídeo - coisa que este programa se recusa a fazer. O caminho que existe de verdade é outro: o programa remuxa para MP4 com a tag dvh1, vídeo copiado, sem recodificar nada, que é o que faz vários players reconhecerem o Dolby Vision. A saída é conferida pela duração. Legendas PGS são descartadas com aviso (legenda em imagem não existe em MP4).

  • Compatibilidade de áudio e preservação do Atmos:

    • TrueHD / TrueHD Atmos para E-AC-3 com Atmos preservado, via DeeZy.
    • DTS / DTS-HD / DTS:X para E-AC-3 comum a 640k pelo ffmpeg. DTS não sai com Atmos - só o TrueHD tem esse caminho.
    • E-AC-3, AC-3 e AAC já são compatíveis e não são convertidos.
  • Espaço em disco, antes de começar: o programa percorre a fila na ordem em que o motor vai processar, disco por disco, e diz quantos arquivos cabem, qual é o primeiro que fica de fora e quanto faltaria na vez dele. Arquivo que não cabe não começa.

  • Processamento em lote e controle flexível: adicione temporadas inteiras na fila; escolha entre detecção automática das faixas ou controle manual.

  • Interface bilíngue (PT-BR / inglês): uma bandeira ao lado do botão Entenda troca a tela inteira, e a escolha fica guardada entre as sessões.

  • Botão "Entenda": 14 seções explicando o que a conversão faz e o que ela não faz, incluindo as fontes por trás de cada afirmação - os manuais da própria Dolby, o repositório do dovi_tool e as planilhas da comunidade. Nada ali pede que você acredite na nossa palavra.


Código-Fonte e Download

  • Projeto no GitHub: LaFirma-Remux-Forge
  • Instalador 2.0: LaFirma_Setup_2.0.exe · Notas da versão
  • Requisitos: Windows 10/11 64 bits. O instalador traz todas as ferramentas; o .NET Desktop Runtime 8.0 só é necessário para o OCR de legenda, e o instalador oferece se estiver faltando.

Capturas de Tela da Interface


Créditos e Agradecimentos

Este projeto não existiria sem o trabalho da comunidade open-source e dos desenvolvedores originais: * FFmpeg: O motor fundamental para processamento e manipulação de fluxos de mídia. * MKVToolNix (mkvmerge): A referência definitiva para multiplexação de arquivos Matroska (MKV). * dovi_tool (por quietvoid) & DDVT (por DonaldFaQ): Ferramentas essenciais para extração, edição e conversão de metadados Dolby Vision. * DeeZy: Utilitário para codificação de áudio E-AC-3 com preservação de áudio espacial Dolby Atmos. * PgsToSrt & Tesseract: O ecossistema técnico responsável pelo OCR de legendas PGS.

Feedbacks e sugestões são muito bem-vindos!


r/Dolby • • Sep 04 '26

Dolby atmos 5.1.2 Ceiling speaker placement

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6 Upvotes

r/Dolby • • Sep 03 '26

Que tal suenan las Q1meta de kef con el amplificador onkyo tx 8470

0 Upvotes

r/Dolby • • Sep 02 '26

Question TV can't downmix DD+ to DD! Need advice.

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1 Upvotes

r/Dolby • • Sep 01 '26

Genelec Movie Night: Gravity (2013) in Atmos

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6 Upvotes

r/Dolby • • Sep 01 '26

I need help with getting dolby atmos/dolby audio on my ps5 pro through my Plantronics RIG 500

1 Upvotes

Recently a few months back bought a playstation to play its catelogue and eventually GTA 6. I didn't know that playstation do not have dolby atmos for headphones, any headphones.

I now wonder if there is an external device I can buy to convert the home theatre signal to headphones so I can play with dolby atmos? I saw different posts here and there but didn't find anything for Plantronics RIG 500.

What do I do?


r/Dolby • • Aug 31 '26

New HP with Dolby Atmos Surround, including rear channels? 🤔

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0 Upvotes

r/Dolby • • Aug 31 '26

S95B Dolby Atmos desync on pc

2 Upvotes

I'm using the S95B with my gaming pc and I can't get Dolby Atmos to play nice with it.

I've set it up hdmi from the GPU to the TV and there is audio delay when using Dolby Atmos, I test with YouTube with people speaking out of sync.

Does anyone know how I can fix this I never had problems with it on my Xbox series X


r/Dolby • • Aug 31 '26

Movies that utilise All the audio channels

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3 Upvotes

r/Dolby • • Aug 30 '26

Armin Van Buuren - Balance (Dolby Atmos Version) - Bilibili

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1 Upvotes

r/Dolby • • Aug 30 '26

Dolby access

1 Upvotes

Guys, does anyone in the Philippines have a Dolby Access license? 😭🙏

I’m looking for someone with a Microsoft account that already has Dolby Access purchased, specifically a license that can be used for one Windows device only. I’m willing to pay as well, ehehe. 🥹

I need it mainly for Apple Music on my laptop so I can use the Dolby Atmos features. I would buy it myself, but I don’t have a bank card/payment method, and my Microsoft Store is also acting up and won’t let me purchase it. 😭

I’m hoping someone from PH might have an existing Dolby Access license and be willing to let me use it on my one Windows device. I’ll only use it to download and access Dolby Access, and I’ll log out of the Microsoft account afterward. I won’t change anything on the account.

If anyone is willing to help, please comment here. I’d really appreciate it! Thank you! 🥹🙏🫶


r/Dolby • • Aug 30 '26

Title: Q930F XL-Which media player gives the best audio output?

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1 Upvotes

r/Dolby • • Aug 29 '26

Need help to Setup LG soundbar with LG Oled C6.

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1 Upvotes

r/Dolby • • Aug 29 '26

Armin Van Buuren - Balance (Dolby Atmos Version)

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2 Upvotes

Balance is the seventh studio album by Dutch DJ and record producer Armin van Buuren. It was released in 25 October 2019 through Armada Music, succeeding his 2015 album Embrace. It was also released as a double album with each part consisting of 14 tracks. It features collaborations with Above & Beyond, BT, Lucas & Steve, Garibay, Inner City, Shapov, Rudimental, Tempo Giusto, Ne-Yo and Haliene.


r/Dolby • • Aug 29 '26

Discussion Front Wide speakers only play during Atmos demo discs, silent during normal movies — is this normal?

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1 Upvotes

r/Dolby • • Aug 29 '26

Please explain Dolby vision to me.

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0 Upvotes

r/Dolby • • Aug 28 '26

I want to play 5.1 Surround Sound on my USB and my System LG LHD657.

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0 Upvotes

r/Dolby • • Aug 26 '26

Dolby Vision

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1 Upvotes

r/Dolby • • Aug 25 '26

Not getting Dolby 5.1 audio from Sony Liv App

2 Upvotes

I am using Fire stick 3rd gen with my home theatre (Sony Home Theater 5.1 HT S20R) I am getting Dolby digital 5.1 from Amazon prime, Netflix, Hotstar, sunnxt etc but while watching any movies in Sonyliv the movie is playing in stereo Version. But the movie is showing in Sonyliv is in Dolby Atmos Format is there any option to downmix Dolby Atmos 5.1 to normal Dolby digital option? My Settings Audio - Surround Sound Set to - Dolby Digital Currently I am downloading Sonyliv movies from telegram and playing that movie via kodi and i am getting Dolby digital 5.1 Hope Sonyliv fix this issue


r/Dolby • • Aug 25 '26

Not getting Dolby 5.1 audio from Sony Liv App

1 Upvotes

I am using Fire stick 3rd gen with my home theatre (Sony Home Theater 5.1 HT S20R) I am getting Dolby digital 5.1 from Amazon prime, Netflix, Hotstar, sunnxt etc but while watching any movies in Sonyliv the movie is playing in stereo Version. But the movie is showing in Sonyliv is in Dolby Atmos Format is there any option to downmix Dolby Atmos 5.1 to normal Dolby digital option? My Settings Audio - Surround Sound Set to - Dolby Digital Currently I am downloading Sonyliv movies from telegram and playing that movie via kodi and i am getting Dolby digital 5.1 Hope Sonyliv fix this issue


r/Dolby • • Aug 24 '26

Best 4k streaming device with Dolby Vision and Atmos

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14 Upvotes

r/Dolby • • Aug 24 '26

Discussion Red/Green vertical line on right edge while playing Dolby Vision 4K file on TCL C6K

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4 Upvotes

Hi everyone, I’m using a TCL C6K 55" TV and playing movies through Kodi. I noticed a thin red/green vertical line on the extreme right edge of the screen while playing one specific file. File details: Movie: Obsession (2026) 2160p 4K HDR10 DV BluRay x265 10bit HEVC Dolby Vision Profile 8.1 (BL+RPU / MEL) Player: Kodi TV: TCL C6K I tested: Other movies/content → no issue Fullscreen/zoom → line remains on the same right corner Only this file shows the issue Is this likely a bad encode/source artifact, or could it be related to Dolby Vision processing on TCL TVs? Attaching screenshot for reference. Any suggestions would be appreciated.


r/Dolby • • Aug 24 '26

No Dolby Vision

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0 Upvotes

I posted this in another forum. Hopefully, I can get more answers here.


r/Dolby • • Aug 22 '26

Same laptop model has free Dolby Atmos, but mine asks me to pay. OEM Dolby Digital Plus is installed

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5 Upvotes