Mobiele Akoestische Wanden -

1. Executive Summary Mobile acoustic walls (also known as portable acoustic screens, room dividers, or acoustic partitions) are freestanding, non-permanent structural elements designed to control sound propagation within an interior space. Unlike fixed walls, they offer flexibility, allowing users to dynamically reconfigure floor plans to balance the need for open collaboration with the requirement for focused, quiet zones. Their primary function is not complete soundproofing (isolation) but sound absorption (reducing echo/reverberation) and sound blocking (reducing direct transmission). 2. Core Acoustic Principles To understand these walls, one must distinguish between two acoustic metrics:

| Metric | Description | Role of Mobile Wall | | :--- | :--- | :--- | | | Reduction of reflected sound energy (echo/reverb). Measured by α (Alpha) or NRC (Noise Reduction Coefficient). | High. Absorptive surfaces (foam, fabric, mineral wool) convert sound energy into heat. | | Sound Transmission Loss | Prevention of sound passing through the barrier. Measured by STC (Sound Transmission Class) or Rw . | Low to Moderate. Limited by mass and sealing (gaps at floor/sides). | mobiele akoestische wanden