Results 21 to 30 of about 45,886 (274)
Loudspeaker Abnormal Sound Classification Using Auditory Perception Weighted by Energy Entropy
IEEE Access, 2023 In order to improve the classification accuracy of loudspeaker abnormal sounds, this paper proposes a method based on time-varying specific loudness weighted by energy entropy and principal component analysis.
Haitao Su +4 more
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On the Frequency Response of Nanostructured Thermoacoustic Loudspeakers
Nanomaterials, 2018 In this work, we investigate the thermal and acoustic frequency responses of nanostructured thermoacoustic loudspeakers. An opposite frequency dependence of thermal and acoustic responses was found independently of the device substrate (Kapton and glass)
Paolo La Torraca +6 more
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Efficiency of low power audio amplifiers and loudspeakers [PDF]
, 2001 In this paper we look at the load presented to audio amplifiers by real transducers. We consider the power losses in Class-AB and Class-D amplifier topologies, and determine that in order to predict efficiency it is necessary to consider the amplifier ...
Burrow, SG, Grant, Duncan A
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Nihon Kikai Gakkai ronbunshu, 2015 We herein propose a new model-based control method, in place of traditional adaptive control, for a low-frequency noise problem in a closed space. The proposed control method is based on state feedback control and a model of the acoustic space obtained ...
Shotaro HISANO +3 more
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Archives of Acoustics, 2014 Sound processing with loudspeaker driving depends critically on high quality electroacoustic transducers together with their relevant amplifiers. In this paper, the nonlinear effects of electrodynamic loudspeakers are investigated as regard the influence
Mehran ERZA +6 more
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Driver Filter Design for Software-implemented Loudspeaker Crossovers
Archives of Acoustics, 2014 A hybrid method is presented for the integration of low-, mid- and high-frequency driver filters in loudspeaker crossovers. The Pascal matrix is exploited to calculate denominators; the locations of minimum values in frequency magnitude responses are ...
Shu-Nung YAO
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Time-Domain Sound Field Reproduction with Pressure and Particle Velocity Jointly Controlled
Applied Sciences, 2021 Particle velocity has been introduced to improve the performance of spatial sound field reproduction systems with an irregular loudspeaker array setup. However, existing systems have only been developed in the frequency domain. In this work, we propose a
Xuanqi Hu +3 more
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Acta Acustica, 2020 Introduction: Surrounding spherical loudspeaker arrays facilitate the application of various spatial audio reproduction methods and can be used for a broad range of acoustic measurements and perceptual evaluations.
Pausch Florian +2 more
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Generalization of a 3-D resonator model for the simulation of spherical enclosures [PDF]
, 2001 A rectangular enclosure has such an even distribution of resonances that it can be accurately and efficiently modelled using a feedback delay network. Conversely, a non rectangular shape such as a sphere has a distribution of resonances that challenges ...
Dutilleux, Pierre, Rocchesso, Davide
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Frontiers in Digital Health, 2021 The distortion-product otoacoustic emission (DPOAE) is a backward propagating wave generated inside the cochlea during the wave amplification process. The DPOAE signal can be detected rapidly under relatively noisy conditions.
Wei-Chen Hsiao +2 more
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