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29th April 2020, 06:29 | #14943 | Link | ||
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I'd use eac3to for that: Quote:
Recommended to use stereo if you have plain stereo playback environment (tv,etc). -downProLogic if you have a surround sound environment that can decode Dolby Pro Logic II. At least with eac3to, you get a log that gives you useful information. Regarding updates, FFMPEG and eac3to should be be equal in updates. Not a whole lot has happened with DTS regarding last updates.
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2nd May 2020, 05:57 | #14944 | Link | |
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In the above example, streaming to the TV, with the audio out via HDMI-ARC to a receiver with the TrueHD/DTSMA re-ecoded to eac3 1664k (which is the highest bitrate for the eac3 bluray spec according to the Dolby Media Encoder) makes it as transparent as the lossless audio (depending on your ears you might need less, but better be safe, especially with audiophile headphones, etc... ). That being said, the new E-ARC now passes TrueHD and DTSMA through, so the eac3 encoding will become less relevant in the near future. Last edited by Bigmango; 2nd May 2020 at 06:07. |
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2nd May 2020, 06:06 | #14945 | Link | |
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There is a big soundstage difference. The difference is night and day with some good audiophile reference headphones with a big soundstage (take a Sennheiser HD 650 for example...). |
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2nd May 2020, 06:23 | #14947 | Link | |
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DD+ for bluray: 1664k. (this works fine over HDMI-ARC). DD+ standard: 3024k (I have not tested this over ARC, but according to the information I could find online, ARC supports ~1Mbs (EARC 38Mbs); so this would be the reason for the DD+ bluray spec.). |
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2nd May 2020, 08:40 | #14948 | Link | |
Life's clearer in 4K UHD
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Have you compared both encoders using the same 5.1 PCM source encoded at the same bit-rate?
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| I've been testing hardware media playback devices and software A/V encoders and decoders since 2001 | My Network Layout & A/V Gear |
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2nd May 2020, 11:55 | #14951 | Link |
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@Bigmango
I accept, but not share your opinions (headphones for 7.1, better than 5.1?). Of course commercial encoders can be better than free ones. BTW this is a eac3to thread than can't encode to eac3 byself. The eac3 bitrate limitation is in the UsEac3to GUI than use ffmpeg to encode. That GUI can be modified, I supply the autoit source code, and recompiled for free You only need change the line 1895: GUICtrlSetData($bit_2, "640|576|512|448|384|320|256|224|192|160|128|112|E640|E576|E512|E448|E384|E320|E256|E224|E192|E160|E128|E112|E96|E80|E64", "640") And include the bitrates desired: GUICtrlSetData($bit_2, "640|576|512|448|384|320|256|224|192|160|128|112|E6144|...|E768|E640|E576|E512|E448|E384|E320|E256|E224|E192|E160|E128|E112|E96|E80|E64", "640")
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BeHappy, AviSynth audio transcoder. Last edited by tebasuna51; 2nd May 2020 at 12:10. |
2nd May 2020, 19:02 | #14953 | Link | ||
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Quote:
In the mean time, I will give you all the info I can below: Quote:
In comparison, the ffmpeg DD+ sounds more "flat" / bland. The Dolby Media Encoder audio has more "presence". On some good reference headphones like the Sennheiser HD 650 which have an amazing soundstage, the surround is perfectly positioned and moves around in an amazing way. With the Dolby Encoder audio, the movies just "move" more. Immersion is much better. The result is that the movies are better (I often feel like I am rediscovering my movies after replacing the 5.1 ffmpeg DD+ @ 1536k with the Dolby Encoder version @ 1664k). The difference is not huge, but it is there. It's sometimes subtle (but even subtle when compared on a short clip, if you watch a movie for a longer time the experience/immersion is a lot better thanks to these improvements) and perhaps to understand the subtlety level I am talking about, you could compare it to something like the difference between a 384k ac3 and lossless (or DTS 1509). (But here I am not talking about audio quality, but "presence". More Flat vs more Alive). I suspect this better/stronger presence of the surround effects to be caused by the way the Dolby Encoder is applying the metadata, and using an AV receiver that knows how to decode this metadata. These are the settings the Dolby Media Encoder uses by default (which I use): Encoder settings: Dialog level: -31 Data rate : 1280k for 7.1 , 768k for 5.1 (I set it @ 1664k for both) Bitstream mode: "Complete main" (Other options are: "Music & Effects", "Visually Impaired", "Hearing Impaired", "Dialog", "Commentary", "Emergency", "Voice over"). Preprocessing: Line mode profile: Film standard (Other options are : "Film light", "Music standard", Music light", "Speech", "None"). RF mode profile: Film Standard (Other options: all the same as Line mode profile) Channel bandwidth low pass filter: ON LFE low pass filter: ON DC high pass filter: ON Surround channel 90-Degree phase shift: ON Surround channel 3db attenuation: OFF (All of these settings and what they do is explained in the Dolby Media Encoder PDFs, which you can easily find with a google search). As you can see, my guess is that these settings (which are the defaults) is where the magic is happening. |
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10th May 2020, 00:59 | #14955 | Link |
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Hi @Bigmango, nice to know. Can you indicate a tutorial explaining, if possible, how to install and run eac3to with UsEac3to on Ubuntu Server 16.04 Xenian Xerus? I would like to remux my BluRays from my dedicated server. I also know that I will need to run mkvtoolnix to join the demuxed files. Any information is welcome. And sorry if this is a noob question, but my knowledge of linux is almost zero.
Last edited by kdantas; 10th May 2020 at 02:23. |
13th May 2020, 09:34 | #14956 | Link |
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cant convert THD to WAVS keeps erroring
trying to convert a THD stream. ive demuxed the mkv using eac3to then tried to extract the wavs but it complains about Lossless check failed and eventually errors with:
The libav decoder reported error -1094995529 while decoding. <ERROR> Aborted at file position 1268252672. <ERROR> |
13th May 2020, 09:59 | #14958 | Link | |
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i did wonder if i could use this to then extract wavs from. when i tried it worked but when i checked the wavs they were 16bit not 24bit as i expected. |
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