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  1. 19th Nov 2022 08:13 #1
    kyrcy
    kyrcy is offline
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    How do I convert audio in an mkv container from DTS-HD MA to AC-3 with ffmpeg? The following command seems to be working, but both tracks are saved.

    ffmpeg -i %1 -map 0:v -map 0:a:0 -map 0:a -map 0:s -c:v copy -c:a copy -c:s copy -c:a:0 ac3 -b:a:0 640k "%~n1_ac3.mkv"

    How do I convert to the best quality and save only AC3?
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  2. 19th Nov 2022 11:30 #2
    Luke M
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    Originally Posted by kyrcy View Post
    How do I convert audio in an mkv container from DTS-HD MA to AC-3 with ffmpeg? The following command seems to be working, but both tracks are saved.

    ffmpeg -i %1 -map 0:v -map 0:a:0 -map 0:a -map 0 -c:v copy -c:a copy -c copy -c:a:0 ac3 -b:a:0 640k "%~n1_ac3.mkv"

    How do I convert to the best quality and save only AC3?
    Convert first audio track:

    Code:
    ffmpeg -i %1 -map 0 -c:v copy -c:s copy -c:a copy -c:a:0 ac3 -b:a:0 640k "%~n1_ac3.mkv"
    Convert all audio tracks:

    Code:
    ffmpeg -i %1 -map 0 -c:v copy -c:s copy -c:a ac3 -b:a 640k "%~n1_ac3.mkv"
    Last edited by Luke M; 19th Nov 2022 at 11:48.
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  3. 20th Nov 2022 08:37 #3
    kyrcy
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    Does the same command work for any DTS audio?
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