You can adjust the volume of various parts of the sound system in your
computer by typing 'mixer <type> <volume>'. To get a list of what you can
adjust, just type 'mixer'.
If you have a fediverse account, you can quote this note from your own instance. Search https://mastodon.bsd.cafe/users/fbfortune/statuses/115957040363964899 on your instance and quote it. (Note that quoting is not supported in Mastodon.)