Summary: I want to know how to change the permissions of my sound devices so that only my user can read and write to them. I thought this could be accomplished by
chmod 0660 /dev/dsp* but
/dev/dsp* does not exist.
System Info: Ubuntu 14.04.1 LTS (xubuntu)
Detailed Problem: I noticed that light locker stops my audio when it automatically logs me out after a certain duration of inactivity. I found an article that suggests I Add my user to the audio group (see: http://xubuntu.org/news/screen-locking-in-xubuntu-14-04/ ). I didn't know how to do that, so I found another instructional article saying I should also change the permissions of the sound devices so only audio users can read and write. It says I should execute
chmod 0660 /dev/dsp* (see: http://www.maenad.net/geek/di8k-debian/node23.html ). However my system doesn't have
/dev/dsp*. I want to know what the correct directory is for Ubuntu 14.04 so that I can properly change permissions as mentioned above.