If the driver for your sound card is installed as a module then you can use aumix to set the volume shortly after the module is loaded. In /etc/modules.conf add & aumix -v50 at the end of the line where the driver is loaded to set the volume to 50%.
Set sound volume at boot
Last modified: 07/05/2006 (most likely earlier as a site migration in 2006 reset some dates) Tags: (none)