232209 ⎘
Bending wave transducers covered by , not provided for in its groups Resonant bending wave transducer used as a microphone
Signal processing method of audio sensing device, and audio sensing system
#2Microphone
#3Inverse horn loudspeakers
#4Flat-type speaker having plurality of magnetic circuits which are horizontally connected
#5Inverse horn loudspeakers
#6ACOUSTIC PANEL FOR RECEIVING, EMITTING OR ABSORBING SOUNDS
#7Inverse horn loudspeakers
#8Card-type sound apparatus and electronic appliance provided therewith
#9Acoustic device
#10Acoustic device
#11Acoustic device
#12Card sound device and electronic apparatus having same