Courses expand the development of personal specialized interests that can benefit a person’s hobbies, personal life and career, depending on the certifications and diplomas sought. The time it takes to complete a course varies from school to school. What is a course in audio engineering? Learn the basics of signal flow, automation, acoustics, recording techniques and so much more Courses expand the development of personal specialized interests that can benefit a person’s hobbies, personal life and career, depending on the certifications and diplomas sought. The time it takes to complete a course varies from school to school. What is a course in audio engineering? Learn the basics of signal flow, automation, acoustics, recording techniques and so much more