Problems recording the line output on laptop

[Colin Law]

On Sat, 29 May 2021 at 04:39, MR ZenWiz <mrzenwiz at gmail.com> wrote:
>
> However, I would like to record the line input coming from, say, an
> audio I'm playing in my browser or something else I may want to record
> but not have to play it on the speakers so the built in mike can
> "hear" it.  I don't see how to do this.

This describes how I do it
https://askubuntu.com/questions/229352/how-to-record-output-to-speakers

Colin