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What's the deal with Dolby TrueHD/AC3 Core? - VideoHelp
https://forum.videohelp.com/threads/374089-What-s-the-deal-with-Dolby-TrueHD-AC3-Core
Dolby TrueHD Audio English 1540 kbps 5.1 / 48 kHz / 1540 kbps / 16-bit (AC3 Core: 5.1 / 48 kHz / 640 kbps) Atmos Dolby TrueHD Audio / 7.1 / 48 kHz / 4512 kbps / 24-bit (AC3 Embedded: 5.1-EX / 48 kHz / 640 kbps)
Extracting Audio from TrueHD and down sampling to 5.1 and ...
https://www.reddit.com/r/ffmpeg/comments/g0muvo/extracting_audio_from_truehd_and_down_sampling_to/
The command I used to copy video and extract the truehd_core was: ffmpeg -i INPUT.mkv -c:v copy -bsf:a truehd_core -c:a copy OUTPUTCORE.mkv. When I eac3to on "OUTPUTCORE.mkv" it shows the video file (unchanged) and also the audio channel as: TrueHD, English, 7.1 channels, 48kHz, dialnorm: -27dB.
How Do Dolby TrueHD and Dolby Atmos Differ ... - Sound ...
https://www.soundandvision.com/content/how-do-dolby-truehd-and-dolby-atmos-differ
Dolby TrueHD is a lossless audio codec that supports up to eight audio channels on Blu-ray Disc. Dolby Atmos soundtracks, in contrast, consist of audio objects — up to 128 of them — that are mixed in a 3D soundfield during the production process.
Converting TrueHD to E-AC3: Audio loudness …
https://www.reddit.com/r/ffmpeg/comments/hl4fsj/converting_truehd_to_eac3_audio_loudness/
From there I ripped the TrueHD track to a .wav file with ffmpeg and imported it into Media Encoder, and I was successfully able to convert the track to 448kbps E-AC3 using the official encoder. Media Encoder automatically applied the correct DRC and gain, and the final audio is just as loud as the AC3 track, only now it sounds better too.
FFmpeg Bitstream Filters Documentation
https://ffmpeg.org/ffmpeg-bitstream-filters.html
2.30 truehd_core. Extract the core from a TrueHD stream, dropping ATMOS data. 2.31 vp9_metadata. Modify metadata embedded in a VP9 stream. color_space. Set the color space value in the frame header. Note that any frame set to RGB will be implicitly set to PC range and that RGB is incompatible with profiles 0 and 2. ‘unknown’ ‘bt601 ...
TrueHD/AC3 Core??? [Archive] - Doom9's Forum
https://forum.doom9.org/archive/index.php/t-155499.html
The TrueHD compressed audio frames consist of a number of substreams. With a 7.1 TrueHD track a decoder can choose to only decode 2.0, simply by ignoring the 5.1 and 7.1 subchannels. Or the decoder can choose to only decode 5.1, by ignoring the 7.1 subchannels. The Nero 7 TrueHD decoder does that, it never decodes 7.1.
Does the A90J's eARC passthrough Dolby TrueHD Atmos with ...
https://ap.community.sony.com/s/question/0D54O00006qntoYSAQ/does-the-a90js-earc-passthrough-dolby-truehd-atmos-with-the-built-in-apps?language=en_US
The A80J supports Dolby TrueHD and Dolby Atmos Pass-through audio formats. In the meantime, please ensure that you are using a Premium High-Speed HDMI® cable with ethernet. Also, try playing different movies or videos with Dolby TrueHD and Dolby Atmos from the TV applications or connected devices on the TV input to isolate the problem.
Dolby Digital Plus, DTS-HD HR, Dolby True HD and DTS …
https://www.tomsguide.com/us/high-def-audio-hdmi,review-1088-4.html
Audio Codec is Dolby TrueHD. The Audio Channels (sound scheme) is nearly always 5.1, with a very few 6.1 and 7.1 entries.
Best TrueHD Player Software (with TrueHD VS Atmos) | Leawo ...
https://www.leawo.org/entips/best-truehd-player-software-with-truehd-vs-atmos-1389.html
Dolby TrueHD is the successors to AC-3 while using Meridian Lossless Packing (MLP) method to compress audio data. But one single Dolby TrueHD bitstream is able to deliver up to 16 discrete audio channels. At this level, Dolby TrueHD has a strong competitor named DTS-HD Master Audio codec which also produces lossless audio from DTS.
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