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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.

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Room statistics and direct-to-reverberant ratio estimation from dual-channel signals

TL;DR: A novel relationship for the standard deviation of the difference of the magnitude spectra of dualchannel microphone recordings as a function of the DRR is derived.

Calculation of head related transfer functions in the proximity region using spherical harmonics decomposition: comparison with measurements and evaluation

TL;DR: In this paper, a comparison between different compensation and range extrapolation methods to predict head related transfer functions (HRTFs) in the proximity of the head, and acoustic measurements of a HEAD acoustics dummy head in an anechoic room is presented.

Measurement-based modal beamforming using planar circular microphone arrays

TL;DR: In this paper, a planar circular pressure-zone table-top microphone array is used for modal beamforming in the three-dimensional half-space, where the objective is to provide a fully calibrated decomposition into the directional modes.
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Construction of an Omnidirectional Parametric Loudspeaker Consisting in a Spherical Distribution of Ultrasound Transducers.

TL;DR: Measurements show that the OPL has a good omnidirectional behavior for most frequencies, and clearly improves the directivity of dodechaedral sources in the high frequency range, but performs worse at low frequencies.

Automatic calibration and equalization of a line array system

TL;DR: This paper presents an automated Public Address processing unit, using delay and magnitude response adjustment, to achieve a flat frequency response and delay adjustment between different physically-placed speakers at the measuring point.
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.
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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

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

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).