*Review: Open Sound Meter - A truly free audio analyzer?* Open Sound Meter: https://psmokotnin.github.io/osm/ Other free audio analyzers: RiTA: http://educasound.com/apps/ REW: https://www.roomeqwizard.com/ ___ Get Started with Sound System Tuning - https://www.sounddesignlive.com/get-started-with-sound-system-tuning/ ___ SOUND SYSTEM TUNING ONLINE COURSE - https://www.proaudioworkshopseeingsound.com/ ___ Books on sound system tuning - https://www.sounddesignlive.com/audio-engineer-training-prog