Re: Audio multitrack render

[Russ Foster]

If you want a video with multi audio streams, like some videos do with 
an option to listen in English, Spanish, French, etc. then you 
definitely need to make it a mkv container.

You should be able to do this with ffmpeg, which works with mkv H.265 
and allows you to address multiple audio streams within a container.

This document has some helpful references on addressing multiple audio 
streams: https://trac.ffmpeg.org/wiki/Map

And in this thread, this guy answers his own question on modifying 
multiple audio channels within a mkv container. But it gives some 
insight into how the command works when addresses multiple audio 
streams:

https://stackoverflow.com/questions/60021165/ffmpeg-map-mkv-with-multiple-audio-to-mkv-with-more-audio

Hope this helps.

-r



On 2023-01-18 08:08, Narcis Garcia wrote:
Okay, I'll try mkvextract if it's useful to merge all tracks into a
single .avi file.

Thank you.


El 18/1/23 a les 14:22, Evert Vorster ha escrit:
Hi there, Narcis.

If you are on Linux, MKVtoolnix might be able to help you, as it can 
mux in extra channels.

Kind regards,
Evert Vorster

Awesome Chapters Tours
http://www.awesomechapters.com <http://www.awesomechapters.com>
Tel: +264 (0) 811477690



On Wed, 18 Jan 2023 at 14:26, Narcis Garcia <debianli...@actiu.net 
<mailto:debianli...@actiu.net>> wrote:

    Thank you Paul;

    I don't mean channels (stereo, etc.) but resulting tracks.
    Example: One track for music (stereo), the other for comments 
speech
    (mono).


    El 18/1/23 a les 13:21, Paul Brown ha escrit:
     > On Wednesday, 18 January 2023 10:52:56 CET john Lucibello 
wrote:
     >> You are speaking to the wrong person as I'm not
     >> IT INTELLIGENT.
     >
     > John,
     >
     > Please do not respond to requests for support that you cannot
    answer, as it is
     > not helpful. Allow others who can provide helpful information 
to
    do their
     > thing.
     >
     > Thanks.
     >
     > ---
     >
     > Narcís,
     >
     > Our apologies. This is a public forum, which means anyone can
    respond.
     >
     > To answer your question (I think), if you are recording in
    stereo, which will
     > usually be the default, the channels will be kind of separate. 
To
    see them in
     > Kdenlive, right click on a stereo audio track header, and click
    on the
     > "Separate Channels" check box.
     >
     > See attached image.
     >
     > Cheers
     >
     > Paul

    --     Narcis Garcia

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