Universal audio speaker connection block

Universal beat synchronization of audio and lighting sources...

Universal four-channel surround sound speaker system for...

Universal horn speaker

Universal impedance matcher for a microphone-to-radio...

Universal listening device

Universal ribbon element-module for two or more...

Universal self-attaching inductive coupling unit for connecting

Universal stethoscope amplifier with graphic equalization and te

Universal-fit hearing device

Unnatural reverberation

Unobtrusive removal of periodic noise

Up and down-loadable VTR configuration for an audio follow video

Update system for an audio amplifier

Uplink noise cancellation

Uploadable/downloadable manual crossfade learn feature

Upper audio range hearing apparatus and method

Use of mouth position and mouth movement to filter noise...

Use of noise segmentation for noise cancellation

User adjustable volume control that accommodates hearing