Portable multimedia marketing system

Portable speakers with phased arrays

Ported speaker enclosure of a portable computer

Position detecting system, speaker system, and user terminal...

Positional audio rendering

Positioning audio output for users surrounding an...

Power fader for a loudspeaker system

Predistorted AM stereo transmission

Pressure gradient type microphone apparatus with acoustic termin

Procedure and device for facilitating audiovisual observation of

Process and apparatus for alternately switching radio signals ov

Process and device for mixing sound signals

Process for coding and decoding stereophonic spectral values

Process for enhancing the existing ambience, imaging, depth,...

Process for the production of a sound recording and a device for

Processing audio signals

Processing method for localization of acoustic image for...

Processing microphone generated signals to generate surround...

Pseudo stereophonic device

Pseudo-stereo circuit