Minimally Simple Binaural Room Modelling Using a Single Feedback Delay Network

TitleMinimally Simple Binaural Room Modelling Using a Single Feedback Delay Network
Publication TypeJournal Article
Year of Publication2018
AuthorsAngus N., Anderson H., Chen J.M., Lui S., Herremans D.
JournalJournal of the Audio Engineering Society
Volume66
Issue10
Pagination791-807
Date Published10/2018
Abstract

The most efficient binaural acoustic modeling systems use a multi-tap delay to generate accurately modeled early reflections, combined with a feedback delay network that produces generic late reverberation. We present a method of binaural acoustic simulation that uses one feedback delay network to simultaneously model both first-order reflections and late reverberation. The advantages are simplicity and efficiency. We compare the proposed method against the existing method of modeling binaural early reflections using a multi-tap delay line. Measurements of ISO standard evaluators including interaural correlation coefficient, decay time, clarity, definition, and center time, indicate that the proposed method achieves comparable level of accuracy as less-efficient existing methods. This method is implemented as an iOS application, and is able to auralize input signal directly without convolution and update in real time.

DOI10.17743/jaes.2018.0045