Speaking apparatus

Speaking tube

Stereophonic baffle

Striker mechanism for bell unit

Sub-band echo canceller using optimum wavelet packets and...

Subband acoustic echo canceller

Subwoofer speaker system

Surface acoustic wave device with proximity coupling and...

Surface acoustic wave transducer

System and method for a sound masking system for networked...

System and method for acoustic focusing hardware and...

System and method for sound synthesis using a...

System and method for ultrasonic laser testing using a laser...

System for adaptively reducing noise in speech signals

System for fastening insulating layers to a support structure

System for fastening sheet materials together

System for low frequency transmission of radiant energy

System for modifying acoustic environment

System for suppressing rain noise

System identification method and apparatus by adaptive filter