acoustical barrier

Also found in: Dictionary, Thesaurus.

sound barrier

Any solid obstacle which is relatively opaque to sound that blocks the line of sight between a sound source and the point of reception of the sound.
References in periodicals archive ?
The material is a PVC-free alternative to acoustical barriers.
Parma ships the recycled PVC to Hematite where it is used to extrude thick sheet that is thermoformed into acoustical barriers for new cars.
Elk also produces "Versashield" coated mat applications, which are used in several growing market niches such as flame resistance, thermal and acoustical barriers, fabric chemical resistance and blended base fibers, according to company executives.
Lydall has booked incremental, new automotive business exceeding $20 million for 2001 and is expecting further growth from its ZeroClearance shielding products and dBLyte acoustical barriers.