Open AccessA New Method for Sound Generation Based on Digital Sound Reconstruction
Author(s) -
Dominik Mayrhofer,
Manfred Kaltenbacher
Publication year - 2021
Publication title -
journal of theoretical and computational acoustics
Language(s) - English
Resource type - Journals
eISSN - 2591-7811
pISSN - 2591-7285
DOI - 10.1142/s2591728521500213
Subject(s) - computer science , shutter , acoustics , directional sound , sound (geography) , range (aeronautics) , sound pressure , frequency domain , algorithm , telecommunications , engineering , computer vision , physics , optics , aerospace engineering
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.