WĘGRZYN, Filip, and Adam PILCH. “Potential Applications of Ultrasonic Parametric Array Loudspeakers (PALs) in Room Acoustic Measurements”. Archives of Acoustics 50, no. 4 (November 25, 2025): 513–524. Accessed January 17, 2026. https://acoustics.ippt.gov.pl/index.php/aa/article/view/4325.