基于数字声音重构的声音生成新方法

IF 1.3 3区物理与天体物理 Q3 ACOUSTICS

Journal of Theoretical and Computational Acoustics Pub Date : 2021-12-01 DOI:10.1142/s2591728521500213

D. Mayrhofer, M. Kaltenbacher

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引用次数: 2

摘要

在本文中，我们考虑了数字声音重建(DSR)的一般思想，并分析了其固有的局限性。在此基础上，介绍并详细分析了一种新方法——高级数字声音重建(ADSR)。该方法旨在通过引入卷闸门来克服经典DSR的问题，并重点研究低频域的声音产生。将经典DSR的思想与重定向机制相结合，对于降低频率值的声压，每十年的增益为20 dB[公式:见文本]。我们提出了ADSR的多种阵列设计和可能的实施例，以及对激励和优化方法的深入研究。最后，用数值研究来证明ADSR的潜力，特别是在中低频范围内。

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A New Method for Sound Generation Based on Digital Sound Reconstruction

In this paper, we consider the general idea of Digital Sound Reconstruction (DSR) and analyze its inherent limitations. Based on this discussion, a new method which we call Advanced Digital Sound Reconstruction (ADSR) is introduced and analyzed in detail. This method aims to overcome the problems of classical DSR by introducing shutter gates and focuses on sound generation in the low-frequency domain. Combining the idea of classical DSR with a redirection mechanism leads to a gain of 20[Formula: see text]dB per decade regarding the sound pressure for decreasing frequency values. We present multiple array designs and possible embodiments for ADSR as well as an in depth view of excitation and optimization approaches. Finally, numerical investigations are used in order to demonstrate the potential of ADSR especially in the mid- to low-frequency range.

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来源期刊

Journal of Theoretical and Computational Acoustics Computer Science-Computer Science Applications

CiteScore

2.90

自引率

42.10%

发文量

期刊介绍： The aim of this journal is to provide an international forum for the dissemination of the state-of-the-art information in the field of Computational Acoustics. Topics covered by this journal include research and tutorial contributions in OCEAN ACOUSTICS (a subject of active research in relation with sonar detection and the design of noiseless ships), SEISMO-ACOUSTICS (of concern to earthquake science and engineering, and also to those doing underground prospection like searching for petroleum), AEROACOUSTICS (which includes the analysis of noise created by aircraft), COMPUTATIONAL METHODS, and SUPERCOMPUTING. In addition to the traditional issues and problems in computational methods, the journal also considers theoretical research acoustics papers which lead to large-scale scientific computations.