[FFmpeg-user] distorted audio in concatenated mkv

[lejeczek]

On 06/09/2021 20:11, Paul B Mahol wrote:
>
>
> On Mon, Sep 6, 2021 at 9:05 PM lejeczek via ffmpeg-user 
> <ffmpeg-user at ffmpeg.org <mailto:ffmpeg-user at ffmpeg.org>> 
> wrote:
>
>     Hi guys.
>
>     I have two mkv files which on their own playback fine but
>     when I concatenate them then that second file's audio is
>     pretty distorted.
>     In case it might matter, I see as 'concat' works:
>     ...
>     [matroska @ 0x558ab61d6180] Non-monotonous DTS in output
>     stream 0:1; previous: 986790, current: 986784;
>     changing to
>     986790. This may result in incorrect timestamps in the
>     output file.
>     ...
>
>
> Most important information is not provided.
> Audio codec used.
default by ffmpeg - vorbis.
Also, I do not copy in 'concat' but re-encode.
thanks, L

>
>     Is there a way to fix this weird problem?
>     many thanks, L.
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