Dual-chamber multi-channel speaker for surround sound stereo aud
Dynamic equalizing of powered loudspeaker systems
Electronic device for the generation of acoustic spatial effects
Equipment for the stereophonic sound reproduction in a televisio
Expandable bandwidth compression and restoration system
Extended imaging split mode loudspeaker system
Frequency attenuation compensated pneumatic headphone and liquid
Frequency attenuation compensated pneumatic headphone and liquid
Head diffraction compensated stereo system
Head diffraction compensated stereo system
Head mounted surround sound system
Headband audio system with acoustically transparent material
Headband for removably securing stereo earphones
Headphone
Headphone apparatus having means for detecting gyration of user'
Hearing device system with binaural data logging and...
High fidelity stereophonic reproduction system
Infrared headphones for the hearing impaired
Loudspeaker arrangement comprising one or more flat diaphragms
Loudspeaker having improved directional characteristics