Sonic Edge MEMS earphone driver module ST100 in Active Noise Control (ANC) feedback application 3.0
This keeping in mind, that the driver needs to be “packed” into an earphone housing and con- taining the soft tip interfacing to the ear, which of course also occupies space in the device. There are however other driver technologies such as the Balanced Armature initially devel- oped for the hearing instrument industry and lately […]
Modulated ultrasound speakers – A common framework for analyzing air pump speakers
Active modulation of ultrasound provides an alternative to dynamic drivers and enables to reduce the size and volume of speakers. This feat in apparent contradiction to basic acoustics. In the article we provide for the first time an explanation of the underlying physics of modulated ultrasound speakers using a holistic lumped element model. Using the […]