Elements of Acoustics

Acoustic horns and non‐uniform electrical transmission lines

“…However, acousticians have long recognized the analogies that exist between acoustical and electrical phenomena [7], In particular, speech scientists have used the latter to model the former in attempting to synthesize the human voice [8,9]-a practice with increasing relevance to computer design [10],…”

Model of the Photoacoustic Helmholtz Resonator with Conical-Ended Duct

“…In the model with lumped elements, the duct is represented by a series connection of resistance R and inductance L, while in the transmission line model, the duct is considered as a transmission line. Furthermore, the mentioned components (capacitors, inductors, resistors, transmission line) may be defined in many different ways [11,[13][14][15][16][17][18][19][20][21][22][23]. In order to limit the number of model variants, some preliminary experimental verification of the models was performed [24], leading to the conclusion that the best results are obtained with the transmission line model and the model with lumped elements presented by Kastle and Sigrist [15].…”

Comparison of the CRLC Models Describing the Helmholtz Type Cells for the Nondestructive Photoacoustic Spectroscopy

“…In this situation we wrote the velocity of sound in a different form, expressed by the physical parameters of air (7)(8)(9)(10).…”

“…The pressure response of the photoacoustic cell can be simulated by an electrical circuit with R, L and C electrical components. There are a few well known models describing this type of the photoacustic cell [7][8][9][10][11]. However results of simulations obtained using these models are different i.e.…”