How to make an audio file have multiple "Streams"?

Audacity 3 Help Forum Windows
1

When importing some OGG audio files I found online, I see that it asks which of 3 “streams” I’d like to Import

How is this achieved in an audio file (I think mainly on OGG) purposely?

Thanks in advance

P.S.: Apologies if this is a dumb question, I’m not very familiar with any of this

2

When importing some OGG audio files I found online, I see that it asks which of 3 “streams” I’d like to Import

First I’ve heard of this, but there is documentation on Google.

https://xiph.org/ogg/doc/ogg-multiplex.html

Now you know as much as I do.

Maybe someone else will post.

Koz

3

You can create multi-stream OGG files using the command-line program “ogmmerge”, which is part of “ogmtools”.

Example usage (tested on Linux). Merging files aaa.ogg and bbb.ogg as two streams in one new file that will be named multi.ogg

ogmmerge -o multi.ogg aaa.ogg bbb.ogg