System and method for simulating audio communications using...

System for transcription and playback of sonic signals

Timbre correction units for use in sound systems

Tone signal processing device

Touch sensitive hearing aid volume control circuit

Transducer with ear canal pickup

Transmitting/receiving apparatus and communication system using

Transmitting/receiving apparatus for use in telecommunications

Tube amplifier fat emulation structure

Tube emulator amplifier system

Ultra bass

Ultrasonic frequency expansion processor

Unnatural reverberation

Variable and reactive audio power amplifier

Variable recovery time circuit for use with wide dynamic range a

Video game controller with noise canceling logic

Visual aid for the hearing impaired

Voice modifier

Voice-controlled hearing aid

Wearable digital hearing aid and method for improving hearing ab