The article “Exploring cultural heritage through acoustic digital reconstructions” by Brian Katz, Damian Murphy, and Angelo Farina (Physics Today, December 2020, page 32) gives an excellent review of the state art in computer simulation room acoustics. However, authors seem unfamiliar with revolution concert-hall, theater, worship-space design that started Peter Parkin J. H. Taylor’s work Londo...

In these days, Discriminative Training (DT) methods of an acoustics model are taking over the leadership in the speaker recognition task for training an acoustics model. Maximum Likelihood (ML) training suffers from some inaccuracies because of improper assumptions of the suitability of the HMM. Well-known adaptation method, feature Maximum Likelihood Linear Regression (fMLLR), is based on ML c...

*Fellow of the International Institute of Acoustics and Vibration, Author for correspondence: Email address: [email protected] 1 Three-Dimensional Acoustic Analysis of an Elliptical Chamber Muffler with a Side Inlet and a Side Outlet A. Mimani and M.L. Munjal* Facility for Research in Technical Acoustics (FRITA), Department of Mechanical Engineering, Indian Institute of Science, Ba...

In this paper, a method is presented for modeling sound propagation in rooms using a signal processing approach. Low order digital filters are designed to match to sound propagation transfer functions calculated from boundary material and air absorption data. The technique is applied to low frequency, finite difference time domain (FDTD) simulation of room acoustics and to real-time image-sourc...

PURPOSE The authors evaluated the installation and use of sound-field systems to investigate the impact of these systems on teaching and learning in elementary school classrooms. Methods The evaluation included acoustic surveys of classrooms, questionnaire surveys of students and teachers, and experimental testing of students with and without the use of sound-field systems. In this article, th...

Although the emphasis in underwater acoustics for the last few decades has been in low-frequency acoustics, motivated by long range detection of submarines, there has been a continuing use of high-frequency acoustics in traditional specialized applications such as bottom mapping, mine hunting, torpedo homing and under ice navigation. The attractive characteristics of high-frequency sonar, high ...

This paper examines the degrees of correlation among vocal-tract and facial movement data and the speech acoustics. Multilinear techniques are applied to support the claims that facial motion during speech is largely a byproduct of producing the speech acoustics and further that the spectral envelope of the speech acoustics can be better estimated by the 3D motion of the face than by the midsag...

An experimental study was conducted to investigate the physics underlying the oscillation cycle of high Mach number, turbulent, open cavity flows. The specific aim was to investigate how the interaction between the cavity acoustics and the shear layer dynamics is affected by increasing Mach number. In the experiments the free-stream Mach numbers tested were 2 and 5, the cavity length-to-depth r...

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Antti Kuusinen Name of the doctoral dissertation Multidimensional perception of concert hall acoustics: Studies with the loudspeaker orchestra Publisher School of Science Unit Department of Computer Science Series Aalto University publication series DOCTORAL DISSERTATIONS 133/2016 Field of research Acoustics Manuscript submitt...