Open AccessJournal Article
Simultaneous Measurement of Impulse Response and Distortion with a Swept-Sine Technique
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TLDR
A novel measurement technique of the transfer function of weakly not-linear, approximately time-invariant systems is presented, based on an exponentially-swept sine signal, applicable to loudspeakers and other audio components, but also to room acoustics measurements.Abstract:
A novel measurement technique of the transfer function of weakly not-linear, approximately time-invariant systems is presented. The method is implemented with low-cost instrumentation; it is based on an exponentially-swept sine signal. It is applicable to loudspeakers and other audio components, but also to room acoustics measurements. The paper presents theoretical description of the method and experimental verification in comparison with MLS.read more
Citations
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Modeling of nonlinear audio systems using swept-sine signals: application to audio effects
TL;DR: The method is based on swept-sine excitation signal and nonlinear convolution and can be used in nonlinear processing for audio applications, to simulate analog nonlinear effects (distortion effects, limiters) in digital domain.
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Ground-Plane Constant Beamwidth Transducer (CBT) Loudspeaker Circular-Arc Line Arrays
Douglas J. Button,D.B. Keele +1 more
TL;DR: In this article, a design of the CBT loudspeaker line array that is intended to operate very close to a planar reflecting surface is described. But this design is not suitable for the ground plane.
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Sound field reconstruction in rooms: inpainting meets super-resolution
TL;DR: In this article, a U-net-like neural network with partial convolutions trained solely on simulated data is proposed to reconstruct a two-dimensional plane of a rectangular room from measurements of the three-dimensional sound field.
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Investigation of auditory distance perception and preferences in concert halls by using virtual acoustics.
Antti Kuusinen,Tapio Lokki +1 more
TL;DR: Results reveal that the perception of distance is dependent on the hall acoustics and show how the strength factor G and direct-to-reverberant energy ratio covary in relation to perceptual distances in four concert halls with multiple sound sources on stage.
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Revisiting Historic Buildings through the Senses Visualising Aural and Obscured Aspects of San Vitale, Ravenna
TL;DR: In this article, a new technology to measure acoustic 3D Impulse Responses in historic interiors is described and applied to the sixth-century church of San Vitale at Ravenna, Italy.
References
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Journal Article
Aspects of MLS Measuring Systems
TL;DR: In this paper, the pathology of maximum length sequence (MLS) systems when there is distortion of various kinds is explored, and the properties of such a system are discussed in detail.
Journal Article
The stereo dipole : A virtual source imaging system using two closely spaced loudspeakers
TL;DR: In this article, a system comprising only two closely spaced loudspeakers can create very convincing virtual images around a single listener, and it is demonstrated that such a system is very robust with respect to head movement, and that the processing does not introduce any excessive artifacts.
Journal ArticleDOI
Acoustic measurements in opera houses: comparison between different techniques and equipment
Patrizio Fausti,Angelo Farina +1 more
TL;DR: The aim of this work is to define a tightly standardized measurement procedure for the collection of a complete objective description of an opera house's acoustics, and some of the results obtained after measurements made in three different halls are presented.
Journal Article
Software Implementation of an MLS Analyzer with Tools for Convolution, Auralization and Inverse Filtering
Angelo Farina,Fabrizio Righini +1 more
TL;DR: The paper describes a suite of software tools, which have been developed as extensions to the most diffused shareware program for waveform editing on Win-32 PCs (Cool Edit 96 by David Johnston).