Hello.
I wonder if someone can help. I hope this problem has a solution...
I occasionally find an old or obscure film online which has few seeders and so I'm chuffed when it has finally downloaded.
So I then put the film on a usb and plug it into my Samsung tv.
But the audio isn't supported.
Invariably the film format is mkv.
I'd like to know if and how it is possible to convert only the audio file, and not lose the high definition of the video file. Is there a free conversion software I can use, which is fairly easy to use?
Any guidance greatly appreciated.
Nice to find such a forum!
Thanks.
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Use clever Ffmpeg-GUI.
Load your movie, click main, click convert audio stream, click go to the encoder, select ac3 as codec, click convert.
If done, click multiplex, the new created audiostream is shown in green.
Select it and select the videostream too, deselect the original audiostream (the blue one) and click multiplex.
Done!Last edited by ProWo; 10th Oct 2022 at 14:17.
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Then download clever Ffmpeg-GUI, extract all from the archive to a folder of your choice and start the exe file.
Follow the indications and with the working app follow my indications in my post above. -
Thanks again for the input.
I'm not sure what the archive is you refer to.
Following that link I just click on the first Download option (121KB,Win,Portable) .
All I get then is the itunes symbol on my desktop with ' clever ffmpeg' description.
If I click on this it opens iTunes and I see nothing of the app there. Do I right click and open with another app, for example? -
It sounds like the 7z extension is inappropriately associated with iTunes. Right click on the clever ffmpeg file you downloaded and select Properties. Verify that the extension is .7z. Assuming so read up on how to open 7z archives:
https://www.howtogeek.com/357846/what-is-a-7z-file-and-how-do-i-open-one/
https://www.wikihow.com/Open-7z-Files -
Why do people use 7Z and RAR when they are such a nuisance to open compared to ZIP?
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If you install 7zip, it wouldn't be a hassle.
Scott -
Fair enough, although in these days of good internet, that is probably not a concern (I see your unpacked program is less than 1mb).
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Statement of the bleedin' obvious, Scott.
Why make life more difficult than it needs to be? -
update- I followed the wikihow link for use of the 7zip procedure/app.
At Step 5 I followed the linked number 2 to a fairly clear Youtube instructional video. Then I returned and tired to follow and keep track but got lost again. lol.
I'm afraid I got confused returning to the itunes file which still opens, even though now it has the name 'ffmpeg-5.1.2 full build' with the iTunes logo.
I'll have a try with the other Wikihow app called Winzip, but I don't have much faith in my tech ability for that either. -
@Alwyn, installing the 7zip app would not only give the user a single place to work with zip, rar, and 7z files, but the installation would also reset the preferences for default app, which is one of the things the OP is having an issue with.
Seems to me, that is killing 2 birds with one stone and making it easier for them.
But, you can lead a horse to water...
Scott -
Miracle of miracles!! I managed to do it and followed the steps of post #2. I used 7zip. I saved it with ac3 codec as advised. Then I put on usb for my TV but it still doesn't work. (I assume there aren't further steps...? or are there...?)
But at least I got thru the procedure. Thanks all for the help! -
"Programmers are human-shaped machines that transform alcohol into bugs."
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I checked the processed file (I assume) using the Media app above but the audio says DTS. I noticed this option in the clever app, after ac3, but I didn't select it.
I followed the procedure (in post #2) but I can't find the converted film. Is it supposed to be under the same name on my desktop? Am I supposed to re-name it in the clever app? I noticed in the clever app it listed the source name and then the target name with the addition of 'muxed' (?).
I also processed another film with the same audio problem and the same result, in that I can't find the new version.
Exasperatedly yours.... -
It's the original file, not the processed one.
So we know now that the original audio is DTS ( I suppose 5.1 channels).
The first time you launched clever FFmpeg-GUI, you had to specify a destination folder. This is where the edited videos are located.
If you click on set target folder like in the picture, the target folder will be displayed.
[Attachment 67219 - Click to enlarge]
If you follow the instructions from post 2, you will see a picture like this:
[Attachment 67220 - Click to enlarge]
Audio conversion from DTS to ac3:
Select here (as in the picture) ac3 as codec.
If channels
it says 5.1, then select 5.1 to 2 (as in the picture),
if it says 2 (stereo), then leave it as it is,
if it says something else, then select 2 (stereo).
Bitrate should say 160.
Leave all other settings as they are and click convert.
Then continue multiplexing as described in post 2.
After that you will find a new file with _muxed.mkv extension in the target folder.
Copy it to your USB stick and test it on your TV.Last edited by ProWo; 14th Oct 2022 at 07:46.
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Thank you very much for the guidance and explanation. It worked!
Very much appreciate your time and efforts. Grazie mille! -
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You can use audacity with ffmeg plugin and mux the changed audio with MKVToolNix.
I think,therefore i am a hamster.
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