some settings make pulseaudio startup muted.
this is how you can solve the problem on: Debian 8.7
Linux debian 3.16.0-4-686-pae #1 SMP Debian 3.16.39-1+deb8u2 (2017-03-07) i686 GNU/Linux
there is probably an „muted“ checkbox checked.
Uncheck this and set the volume as you like it.
then fire up an terminal.
apt-get install alsa-utils; # install some utils
alsactl store; # save the current volume setting
now try to reboot and check if this worked
by the way you can play a sound file from the terminal like this:
Startup Bootup Sound Gnome2 Autoplay on boot
to play this sound Debian_Linux_Startup_Linux_Sound_Collection.ogg.tar.gz on startup you can go like this (Gnome2):
1. create a script
vim scripts/startup.sh; # create startup script in user home folder
paplay /home/user/Musik/Debian_Linux_Startup_Linux_Sound_Collection.ogg; # play startup sound
2. start up Gnome2 control center -> start
3. hit save and close and reboot… you should actually hear your sound being played right after login screen 🙂
ENJOY! HAVE PHUN!