Detachable filter and muffler device
Detachable inflight headset for civil aircraft
Detachable stethoscope
Detatchable muffler apparatus for pneumatic tools
Detectable earplug
Detectable earplug and method of manufacture thereof
Determination of firing times of acoustic pulses
Determining the polarity of movement of an actuator mass in...
Device and a method for sound reduction in a transport...
Device and circuit for the generation of vortex rings
Device and method for a sound-attenuating unit
Device and method for active soundproofing, and power unit...
Device and method for amplifying suction noise
Device and method for attenuating energy along a conduit
Device and method for inserting acoustic dampers into earphones
Device and method for installing vehicle door speaker
Device for absorbing and/or damping sound waves
Device for absorption of airborne sound
Device for absorption of sound waves
Device for accomodating a loudspeaker into a cut-out of a sound