I obtained an 7.1 surround sound audio video receiver to test if the application is able to use OpenAL Soft 3D audio capability for surround sound.

It worked!

I used Startech 7.1 Surround Sound external USB card to output surround sound audio from the computer.

alsoft-config, a program that comes with OpenAL Soft, needs to be used to configure OpenAL Soft system to playback audio for 7.1 surround sound.

On Linux, pulse audio and pavucontrol needs to be used to set up computer to output surround sound.