Choir acoustics is but one facet of choir-related research, yet it is one of the most tangible. Several aspects of sound can be measured objectively, and such results can be related to known properties of voices, rooms, ears and musical scores. What follows is essentially an update of the literature overview in my Ph.D. dissertation from 1989 of empirical investigations known to me that deal sp...

Finite element approximations of the first-order hyperbolic equation U • Vu + au = / are considered on curved domains £2 C K2 . When part of the boundary of Í2 is characteristic, the boundary of numerical domain, Í2A , may become either an inflow or outflow boundary, so it is necessary to select an algorithm that will accommodate this ambiguity. This problem was motivated by a problem in acoust...

M Adams Acoustics Research Centre, University of Salford, Salford, UK N Bruce Acoustics Research Centre, University of Salford, Salford, UK W Davies Acoustics Research Centre, University of Salford, Salford, UK R Cain WMG, University of Warwick, UK P Jennings WMG, University of Warwick, UK A Carlyle London College of Communication, University of the Arts, UK P Cusack London College of Communica...

This paper presents an ongoing project for augmenting acoustic instruments with active acoustics. Active acoustics are defined as audio-rate vibration driven into the instruments physical structure, inducing air-borne sound output. The instrument’s acoustic sound is thus doubled by an electronic soundscape radiating from the same source. The article is centered on a case study on two guitars, o...

Research on room acoustic simulation focuses on more accurate modeling of wave effects in rooms. Today, also wave models (e.g., the boundary element method and the finite differences in time domain technique) can be used for higher frequencies, thus, in the geometrical acoustics (GA) domain. Simulations in architectural acoustics are powerful tools but their reliability depends on the input dat...

JDMS, Volume 1, Issue 4, October 2004 Page 225–233 © 2004 The Society for Modeling and Simulation International Acoustics is an important consideration for realistic agent behavior in land combat, entity-based simulation models. This research describes basic approaches to representing and applying outdoor sound with limited discussion of the evolving field of indoor acoustics in such simulation...

acoustic analysis consonants. See entries ‘acoustics’ under approximants/fricatives/laterals/nasals/ rhotics/stops measurement. See under Praat preparing data for analysis, 123–124 spectrograms and waveforms, 136, 137 vowels. See vowels: acoustics allophones acquiring allophonic distributions, 202, 213 acquiring TL phonemes that are L1 allophones, 148, 217, 241–244 learning a new allophonic dis...

Room acoustics has a scientific interdisciplinary concept which will be further developed in future. During the last century, several dimensions of the overall listening impression in concert halls were identified which show a good correlation with corresponding objective measurement data. It can be summarized that the three most important factors (loudness, reverberance and spatial impression)...