Plug and play compatible speakers

Pole-zero analyzer

Portable audio listening apparatus

Power amplification for parametric loudspeakers

Power amplification for parametric loudspeakers

Predictive signal coding with partitioned quantization

Preprocessing method for nonlinear acoustic system

Preprocessing system for speech recognition

Process and circuit arrangement for the automatic recognition of

Process and device for focusing acoustic waves

Process and device for wireless transmission

Process for digitizing speech

Process for multirate encoding signals and device for implementi

Process for the recognition of a continuous flow of spoken words

Process for varying speech speed and device for implementing sai

Processing of acoustic waveforms

Programmed audio controller

Public address amplifier

Public address system

Public address system and method for an urban transit vehicle