Sox is your friend:
sox -v 2.0
will double the volume, basically.
There's much more to it, of course. But, sox has a great man page.
Janina
Linux for blind general discussion writes:
> I would like sometimes to use my pc to amplify audio; my hearing is very porr.
> I would like to just have
Well you save the aumix settings with aumix -s
then load thm with aumix -l
--Brian Tew
On Jul 11, 2018, at 11:58 AM, Linux for blind general discussion
wrote:
Okay, why not do an acid test. First run alsactl store then reboot. If
your change survives the reboot, you passed the acid test.
