acoustic seal

acoustic seal

[ə′küs·tik ′sēl]
(engineering acoustics)
A joint between two parts to provide acoustical coupling with low losses of energy, such as between an earphone and the human ear.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
They block more ambient noise than the AirPods thanks to their acoustic seal, but the bass isn't as deep as other Beats I've tried.
Ergonomic features include user-exchangeable bows, self-adjusting housings, soft leather cups and slow-retention ear-cup foam, all of which go a long way in ensuring a comfortable fit and an optimal acoustic seal on the ear.
There's excellent sound quality at both the high and low ends - the booming bass is superb - while an acoustic seal blocks out all the annoying background noise.
The ear pads are made of a soft and pliable butyl rubber material for an acoustic seal and the best hearing protection.
A check for a proper acoustic seal was performed prior to each test to ensure that outside noise did not contaminate the results.
The engine bay heat shield has been filled with acoustic damping material to reduce powertrain noise and diesel cars are equipped with extra acoustic seals to further reduce noise intrusion.
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