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Old 24th June 2011, 07:54   #1  |  Link
benqsiemens
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[ASK] Is muxing and extracting affect quality

Hello everybody. I am new to this forum. I am new about video & audio encoding and I am learning it by researching through the internet. I have a question, please help me.

"Is extracting & muxing affect the quality ?" (example: in order to include subtitle from my own language on a mkv; and remove the unneeded one, I must extract the streams and muxing it with the new subtitle; minus the subtitles that I don't need). I prefer all streams (in this case: subtitle) contained in just 1 file (just the mkv), buat if the process of extracting and muxing will degrade its quality, I think I have to leave it on separate subtitle file when played. I am using GUI based mkvextract and mkvmerge on that process.

Thank you everybody and I am sorry for my bad English, because it is not my native language.
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Old 24th June 2011, 08:51   #2  |  Link
kypec
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You don't have to worry about quality of video, audio or subtitle when you are only re-muxing your files. The original streams remain intact, they're only re-packaged to same (or different if wanted) type of container=output file.
BTW Welcome to the forums, you'll surely find answers to all your questions around here
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Old 24th June 2011, 09:40   #3  |  Link
benqsiemens
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Thank you

Thank you for your quick answer "kypec". Now I am confident to merge subtitle on my own language into the container since the quality will not degrade. I will do it on my entire collections.

I think on this case it looks like archiving with zip or rar (the contents will not change) or something like that, is that correct ?

Yes, I think I will learn much in this forum, I have read many threads here now, learning some newby guides, and I think many friends here have high knowledge and willing to help each others. Thank you.
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Old 10th July 2011, 04:17   #4  |  Link
mswaino2
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The quality of the files used will not change just from muxing and extracting them again. Thats only an issue if your re encoding the files.
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Old 10th July 2011, 05:39   #5  |  Link
Chetwood
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Quote:
Originally Posted by benqsiemens View Post
in order to include subtitle from my own language on a mkv; and remove the unneeded one, I must extract the streams and muxing it with the new subtitle; minus the subtitles that I don't need).
No need to extract. Open the MKV, uncheck the stream you don't need and add your new one, then mux.
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