> I'm sure this can be made in software, by looking at the mic
> input. Most probably even in user space.
> Now to find someone with enough time in her/his hands and who
> can be convinced into trying :-)
What I find puzzling here is that this is a 100% standard feature on
pretty much all Android tablet and smartphones. It's clearly cheap
to implement. Why isn't it standard on laptops and (mini) desktops?
Stefan