Maximum Sound Absorption by a Monopole in a Room at Low Frequencies

Design of Helmholtz Resonator with Required Characteristics

“…Helmholtz resonator refers to one of the main and most common elements in noise reduction systems for various machines and equipment [1][2][3][4]. A fairly large number of publications [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] are devoted to the Helmholtz resonator calculation, in which various aspects of this problem are considered.…”