Element-based acoustics methods grow computationally costly at higher frequencies

Evidence

A variation of the element method is the boundary-element method (BEM) (Gumerov and Duraiswami, 2005), where only the boundaries of the space are taken into account in the first phase, and later the sound field at any point in the space can be solved. One more elementoriented technique is the finite-difference time-domain method (FDTD) (Botteldooren, 1995). The problem with all element-based methods is that the number of elements grows very rapidly when the wavelength of the highest frequency of interest decreases. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 305

Categorization

• XREF: Relates to the reader’s interest in applications: explains why real-time acoustic simulation is frequency-limited.