Scattering Delay Network Simulator of Coupled Volume Acoustics

Atalay T. B., Su Gul Z., De Sena E., Cvetkovic Z., Hacihabiboğlu H.

IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, vol.30, pp.582-593, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 30
  • Publication Date: 2022
  • Doi Number: 10.1109/taslp.2022.3143697
  • Journal Name: IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
  • Page Numbers: pp.582-593
  • Keywords: Apertures, Reverberation, Computational modeling, Speech processing, Delays, Ray tracing, Microphones, Artificial reverberators, room acoustics simulation, delay networks, coupled volume acoustics, double-sloped decay, DECAY TIMES, REVERBERATION TIME, ROOM ACOUSTICS, ENERGY DECAY, FEEDBACK, SPACES, MODEL, APERTURE, DENSITY
  • Middle East Technical University Affiliated: Yes

Abstract

Artificial reverberators provide a computationally viable alternative to full-scale room acoustics simulation methods for deployment in interactive, immersive systems. Scattering delay network (SDN) is an artificial reverberator that allows direct parametric control over the geometry of a simulated cuboid enclosure, as well as the directional characteristics of the simulated sound sources and microphones. This paper extends the concept of SDN reverberators to multiple enclosures coupled via an aperture. The extension allows independent control of the acoustical properties of the coupled enclosures and the size of the connecting aperture. Transfer functions of the coupled-volume SDN are derived. The effectiveness of the proposed method is evaluated in terms of rendered energy decay curves in comparison to full-scale ray-tracing models and scale model measurements.