Have you ever struggled to understand a public announcement? This video explains STIPA (Speech Transmission Index for Public Address), the international standard for measuring speech intelligibility, and why room acoustics are as important as the loudspeakers.

Building Physics Engineering improves health, comfort, productivity, and sustainability through better building design. Discover how ALTA Integra integrates acoustics, lighting, thermal comfort, indoor air quality, and performance simulation for high-performance buildings.