A car speakerphone with automatic adjustment of microphone directivity
ACOUSTICAL AND RAIN CLEARING WINDOW ASSEMBLY FOR A VEHICLE
ACOUSTIC DETECTION SYSTEM FOR A VEHICLE AND METHOD FOR ITS OPERATION
ACOUSTIC DETECTION SYSTEM FOR A VEHICLE AND METHOD FOR ITS OPERATION
ACOUSTIC DEVICE, ACOUSTIC PROCESSING METHOD, AND ACOUSTIC PROCESSING PROGRAM
ACOUSTIC DEVICE AND ACOUSTIC SYSTEM FOR MALFUNCTION DIAGNOSIS
Acoustic-electric remote control release hook used on water and underwater