sidewall section

sidewall section

[′sīd‚wȯl ‚sek·shən]
(engineering acoustics)
A wall in a sound-recording studio with reversible panels or rotating columns that are sound-absorbent on one side and reflective on the other, used to vary the acoustic environment.
References in periodicals archive ?
The Johnsford VMC is utilized to do light milling, as well as 4/5-axis simultaneous engraving on sidewall sections of tire molds.