Speech Intelligibility in Auditoriums: STI Explained
What Is Speech Intelligibility in Auditorium Acoustics and Why Does It Matter in 2026? Speech intelligibility in auditorium spaces determines whether a listener in the back row hears “sixteen” or “sixty.” It is measured through the Speech Transmission Index (STI), a scale from 0 to 1 that predicts how clearly spoken words are understood after…
