Articles tagged “ASTM E1130”
5 articles covering ASTM E1130 in acoustic engineering and building design.
What is Acoustic Privacy? Controlling Who Hears What
Acoustic privacy is the condition where speech cannot be understood by unintended listeners. Learn STC requirements, speech privacy classes, masking systems, and open-plan vs closed-office strategies.
Speech Privacy in Open Offices Is Physically Impossible Without Sound Masking
Acoustic panels and high partitions cannot achieve Normal speech privacy in an open office without sound masking. Here's the physics proof with ASTM E1130 calculations and real numbers.
Open Office Speech Privacy — Why You Can Hear Everything and How to Fix It
Your open office has an Articulation Index of 0.45 — that is Poor privacy. Here is the calculation per ASTM E1130 and the 3 changes that fix it.
Sound Masking Specification Guide — How to Write an Acoustic Masking Spec per ASTM E1130
A complete specification guide for sound masking systems in offices. Target levels, spectrum curves, speaker placement, and the ASTM E1130 framework.
Speech Privacy Index (SPI): How to Measure and Achieve Acoustic Privacy
A technical guide to the Speech Privacy Index (SPI) per ASTM E1130: how it relates to STI and AI, the three elements that determine privacy, privacy classification thresholds, and practical design strategies for offices, healthcare, and open plan environments.