Sam McGuire is an active audio engineer, composer, and faculty member of the University of Colorado, Denver. He is the author of multiple audio technology books and numerous online training modules. Sam's research into 360] audio and impulse response technology has taken him to Europe and Asia, recording balloon pops in castles, cathedrals, and concert halls.

Zbyněk Matějů is a contemporary classical music composer. He is well known for his ballet, scenic, and film music, and for his symphony works. He has received many international awards for his compositions.