12 July 2023

Round Robin 3 Case Study


The round robin 3 study examined a small but complex room with special diffusors. The room was measured and the material properties of all surfaces in the room were obtained in octave bands 125 Hz - 4k Hz. The study compared over 20 simulation tools to simulate the studio room of PTB institute. Results were given both with open curtains and closed curtains. The Schroeder frequency of this room is calculated Hz. A strong standing wave was present in the room and a large part of the wall area could be covered with curtains.

Key findings

  • Treble's wave-based solver can show how T30 changes with different positions, while the other GA software simulations can’t.
  • Treble's wave-based solver can predict T30 well at low frequencies, while the other GA software simulations overestimate absorption.
  • At higher frequencies, Treble's GA solver simulations underestimated less compared to other software's GA simulations.

Recent posts

14 May 2024

Hybrid Simulations: How much geometric detail is just right?

Watch our training webinar with Ólafur Hafstein Pjetursson, Product Manager at Treble Technologies. This session explores the optimal level of geometric detail necessary for accurate and efficient hybrid acoustic simulations, combining wave-based and geometrical acoustics methods. Learn from industry-leading insights and real-world applications to enhance your acoustic simulation projects.
03 April 2024

Treble at BIM World Paris 2024

We will be present at the 2024 BIM World Paris convention on April 3 - 4. Come meet us in person to discuss how Treble can integrate in your BIM workflow, and how Treble can help you make better sounding buildings.