This video documents on-site acoustic measurements using 360° video and audio recording to capture the testing environment. It provides a spatial view of the measurement activity and the surrounding room.

The documented assessment covers three aspects of acoustic performance:

• Background noise, assessed using Noise Criteria (NC).
• Reverberation time (RT), describing how long sound persists as it decays within a space.
• Speech intelligibility, assessed using STIPA, the Speech Transmission Index for Public Address method.

Together, these measurements help inform an assessment of the room’s acoustic conditions and the intelligibility of speech delivered through its public address system. The 360° recording adds visual context to the measurement process, allowing viewers to explore the surrounding space.

For architects, acoustic consultants, audio system designers, building owners, and facility teams, the video offers a practical glimpse into acoustic fieldwork and its role in evaluating building performance.

Part of the Herwin Gunawan Work video library, this entry connects acoustic measurement with ALTA Integra’s evidence-led, human-centered approach to the built environment.

Topics: acoustic measurement, 360° video documentation, background noise, Noise Criteria, reverberation time, STIPA, speech intelligibility, room acoustics, ALTA Integra, Herwin Gunawan.