Sound system with isolation of dimensional sub-speakers

Sound system with rate controlled, variable attenuation

Sound system, method for controlling the sound system, and...

Sound transducer

Sound transducer

Sound transducer structure and method for manufacturing a...

Sound transfer from a hearing aid to the human ear drum

Sound tube tuned multi-driver earpiece

Sound tube tuned multi-driver earpiece

Sound volume controllable communication apparatus

Sound volume controlling apparatus

Sound-box type earphone housing, headset with sound-box type...

Sound-capture and listening system for head equipment in noisy e

Sound-collecting device

Sound-damping laminate for loudspeaker structure

Sound-electricity conversion device, array-type ultrasonic...

Sound-field correcting apparatus and method therefor

Sound-image position control apparatus

Sound-image position control apparatus

Sound-multiplexed TV signal demodulator having electrically inde