We occasionally invite industry specialists to share their expertise with our clients and community. This article about Acoustic Ratings was written by the team at KP Acoustics Research Labs, specialist acoustic consultants who have worked closely with Envoy to develop our understanding of workplace acoustic performance. Their insight on how to read pod ratings is something we think every workplace manager and designer should be across.
Datasheets for workplace pods are often filled with acoustic ratings: Rw, NIC, “dB reduction,” and similar figures. But how do these numbers translate into day-to-day user experience?
After completing specialist acoustics training with KP Acoustics Research Labs, Envoy’s team is now uniquely positioned to help clients interpret these figures correctly and make informed decisions.
Lab ratings are not real-world predictions.
KP Acoustics Research Labs teaches a simple truth: acoustic ratings measured in controlled test facilities do not automatically reflect performance in an active office. Laboratory tests rely on perfect seals, rigid constructions, and calibrated sound sources conditions that never fully replicate the dynamic nature of a workplace.
Envoy now uses this understanding to guide clients away from relying solely on headline figures.
Understanding what Rw actually means in Acoustic Ratings
Rw is a laboratory rating for individual building components such as walls, doors, and glazing. It is not, strictly speaking, a rating for a complete pod as installed within an office.
This distinction matters, because readers often assume there is such a thing as a single “Rw of the pod” in the same sense as a wall. In reality, pods are assemblies of multiple elements, with joints, ventilation paths, doors, and glazing, all of which influence performance once installed.
More relevant descriptors for pods: DS,A and pod classes
For workplace pods, more appropriate descriptors exist.
Measures such as DS,A (speech level reduction) and the A+ to D classification system are specifically intended to reflect how well a pod reduces speech audibility and supports privacy. These are far more aligned with how pods are actually used than component Rw values.
Ratings measure insulation, not privacy or comfort.
Even these laboratory descriptors are still benchmarks. They measure controlled performance, not whether someone outside the pod can understand a conversation in your office.
Real-world privacy depends on:
- Door leakage paths
- Ventilation openings
- Internal absorption
- Background noise levels in the office
- Installation quality and flanking paths
This multidimensional view is now embedded into Envoy’s advisory process.
Higher numbers don’t always mean better outcomes.
A pod with slightly higher laboratory performance may create no perceptible difference for users if the surrounding office already has a typical background noise level (40–50 dBA).
Perception matters more than raw data.
A 3 dB change is only barely perceptible to most people. Clients care about:
- Can I be overheard?
- Does it feel comfortable?
- Does this pod support my team’s workflow?
Envoy’s enhanced expertise allows them to translate technical data into clear, practical guidance that architects and workplace managers can act on with confidence.
Laboratory ratings, whether Rw for components or DS,A / class ratings for pods, are useful benchmarks. But they do not replace in-situ performance checks, where installation, flanking transmission, and the surrounding space determine what users actually experience.
Envoy now brings this level of understanding directly to clients across Australia, backed by the technical authority of KP Acoustics Research Labs.
If you’re looking to understand how workplace acoustics are affecting your business get in touch
