using interference effects; Masking sound

Introduced: January 1995

Last revised: January 2006

Full Title

Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general > Methods or devices for protecting against, or for damping, noise or other acoustic waves in general > using interference effects; Masking sound

Classification Context

Section:: PHYSICS
Class:: MUSICAL INSTRUMENTS; ACOUSTICS
Subclass:: SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR

1 direct subcode

Child Classifications

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G10K 11/178 by electro-acoustically regenerating the original acoustic waves in anti-phase