[ASK] Is muxing and extracting affect quality

benqsiemens · 24th June 2011, 07:54

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.

kypec · 24th June 2011, 08:51

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

benqsiemens · 24th June 2011, 09:40

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.

10th July 2011, 04:17

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.

Chetwood · 10th July 2011, 05:39

Quote:

Originally Posted by benqsiemens

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.

24th June 2011, 07:54	#1 \| Link
benqsiemens Registered User Join Date: Jun 2011 Posts: 2	[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.

24th June 2011, 09:40	#3 \| Link
benqsiemens Registered User Join Date: Jun 2011 Posts: 2	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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24th June 2011, 08:51	#2 \| Link
kypec User of free A/V tools Join Date: Jul 2006 Location: SK Posts: 826	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

10th July 2011, 04:17	#4 \| Link
mswaino2 Guest Posts: n/a	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.