Open AccessJournal Article
Simultaneous Measurement of Impulse Response and Distortion with a Swept-Sine Technique
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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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Measurement and Analysis of Feedback and Nonlinearities for the Codacs Direct Acoustic Cochlear Implant
TL;DR: In this article, the authors present the data and analysis relating to the feedback path characterization of the Cochlear™ Codacs™ DACI, performed on fresh frozen cadaver heads in four different measurement sessions.
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Effective measurement method for reverberation time using a constant signal-to-noise ratio swept sine signal
Yuki Nakahara,Yutaka Kaneda +1 more
TL;DR: In this article, the authors proposed an effective measurement method for reverberation time using the CSN-SS signal, where the signal-to-noise ratio (SNR) is defined as the power ratio of the Fourier transform of the IR to the noise component.
HMDiR: An HRTF Dataset Measured on a Mannequin Wearing XR Devices
Abstract: This document covers the release of the open-source HMDiR dataset (Head-Mounted-Display acoustic Impulse Responses) of HRTFs, useful to study the occlusion effect of wearing XR devices on the auditory perception. The data was collected for a previous publication in which the effect of wearing HMD gear on the HRTFs of a mannequin was described. This document covers in detail the measurement procedure, equipment, and specifications, including instructions on how to download the data files. The measurement library includes a free-head case (no HMD), two mixed reality headset cases, and three virtual reality headsets, chosen among those commercially available.
Dissertation
Modelling the cocktail party: a binaural model for speech intelligibility in noise
TL;DR: In this article, the authors developed a model capable of efficiently predicting the benefits of BE and BU from Binaural Room Impulse Responses (BRIR), which is a computationally efficient version of that created by Lavandier & Culling (2010) that predicts speech reception thresholds which include the benefit of binaural-unmasking, as explained by Equalization-Cancellation theory (Durlach 1963, 1972).
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).