Jake Perrine and Kevin Dickey will present two  audio workshops at Orcas Center.

The workshops are open to the public, and designed for audio hobbyists who want to improve their understanding of how audio works, and how to work with it. Tuition for either workshop is a $10 donation to Orcas Center, which will be collected at the start of each workshop.

Saturday, May 31, noon to 4 p.m.: “Intro to Audio,” no previous audio experience is required. Topics are: What is sound? How is it measured? Decibels and Hertz, frequency and amplitude, cables and connectors, microphones and basic audio mixers.

Sunday, June 1, noon to 4 p.m.: “Live Sound Basics,” for intermediate level or those who took the previous day’s class. Topics are: sound reinforcement concepts, sound system layout and speaker placement, monitoring, mics and mic placement for various instruments, direct boxes, gain stages, snakes. Mixing boards. What is feedback, and how do you minimize it? EQ, compression, limiting, gates, reverb, delay. Running a sound check.

Dickey is a co-founder of BURL (burlaudio.com) and live sound tech for the Orcas Center.

Perrine is a mixing and mastering engineer, and has taught audio production for more than a decade.