Signal-Adaptive and Perceptually Optimized Sound Zones With Variable Span Trade-Off Filters

Lee, Taewoong; Nielsen, Jesper Kjær; Christensen, Mads Græsbøll

doi:10.1109/taslp.2020.3013397

Cited by 26 publications

(8 citation statements)

References 55 publications

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“…In [12], a sound field reproduction technique by reducing the leakage in the dark zone is considered. The proposed method attempts to reshape the resulted imperfections in the inaudible range using the variable span linear filter (VSLF) technique.…”

Section: Personal Sound Zone and Sound Zone Optimizationmentioning

confidence: 99%

Recent Technological Advances in Spatial Active Noise Control Systems

Javahersaz

Mohamady²,

Javahersaz

2023

inter noise

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This article provides a broad overview of the recent advances in the field of active noise control techniques to reduce unwanted noise over a certain spatial region of interest. By both commercial and technological advances in local active noise control systems extending the size of the quiet zone seems to be a crucial step to develop the next generation of active control systems for a more personalized and quieter audio products. In this review article, the advances over the past decade in design and development of spatial active noise control techniques to enlarge the controlled sound zone is reviewed. The focus is specifically on the adaptive control techniques and the methods proposed in the frequency domain to control the sound field. The study has paid a specific attention into the most important performance measures in designing a spatial active noise control system such as convergence rate, stability and robustness of the algorithm, and the size of quite zone and how it can be enlarged by configuring the loudspeaker and microphone array geometries. Finally, the authors will discuss the current and future challenges that should be overcome to improve the effectiveness of the recently proposed methods to expand the silence zone.

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Section: Personal Sound Zone and Sound Zone Optimizationmentioning

confidence: 99%

Recent Technological Advances in Spatial Active Noise Control Systems

Javahersaz

Mohamady²,

Javahersaz

2023

inter noise

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“…For a given power allocation q, the optimal control filter should maximize the SINR. Only the control filter wz affects SINR rec z in (13), so the control filters can be found independently. Maximization of ( 13) is the maximization of a generalized Rayleigh quotient, which is solved by the principal generalized eigenvector of the pencil…”

Section: B Optimal Control Filter For Given Power Allocationmentioning

confidence: 99%

“…Popular methods include acoustic contrast control (ACC) [2]- [7] and pressure matching [8]- [10], both of which can be described as special cases of the variable span trade-off filter [11], [12]. Recent methods considering more general problem formulations include [13]- [15]. The task is to find a control filter for each loudspeaker and audio signal, such that when the filtered signals are transmitted, only the desired signal is heard in each zone.…”

Section: Introductionmentioning

confidence: 99%

Signal-to-Interference-Plus-Noise Ratio Based Optimization for Sound Zone Control

Brunnstrom

Waterschoot

Moonen

2023

IEEE Open J. Signal Process.

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This research work was carried out at the ESAT Laboratory of KU Leuven, in the frame of Research Council KU Leuven C14-21-0075 "A holistic approach to the design of integrated and distributed digital signal processing algorithms for audio and speech communication devices". This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 956369: 'Service-Oriented Ubiquitous Network-Driven Sound -SOUNDS'. The scientific responsibility is assumed by the authors. The research leading to these results has received funding from the European Research Council under the European Union's Horizon 2020 research and innovation program / ERC Consolidator Grant: SONORA (no. 773268). This paper reflects only the authors' views and the Union is not liable for any use that may be made of the contained information.

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“…al. [15], which allows the desired shape of the frequency-dependent acoustic contrast to be informed by the masking properties of the masking signals in a given scene. A further constraint on this design problem is provided by the desired levels of speech intelligibility in each zone, and this effect is discussed in the following section.…”

Section: Acoustic Contrast Requirementsmentioning

confidence: 99%

“…Sound zoning methods can be broadly categorised into those that control the energy of the reproduced signals in each zone, such as Acoustic Contrast Control (ACC) [11], and those that seek to accurately reproduce a target signal, such as Pressure Matching [12]. Recent hybrids and generalisations of these methods have also been proposed [13,14,15], yielding perceptual improvements to the reproduced sound fields and the ability to tailor the capabilities of the system to the objectives of the system or the properties of the input signals.…”

Section: Introductionmentioning

confidence: 99%