A vehicle speech system allocates sound spaces and assigns directivity to audio signals for distinct conversation partners.
Opposing damper protrusions couple the diaphragm to the frame, reducing excursion weight and distortion in full-range speakers.
A parametric audio encoder applies spatial parameters to filter matrices for stereo signal processing.
Porous elastic member allows air leakage to balance pressure during vibration, improving sound quality without complex valves.
A single thin plate vibratable element integrates distinct regions with non-matching resonance frequencies to eliminate rolling vibrations.
A hearing device processing unit switches between 2.4 GHz and 5 GHz bands to maintain audio signal quality.
A clamshell Faraday cage apparatus generates active noise signals to seal the audio path of enclosed devices.
Strip-shaped reinforcement members with faster sound propagation velocity strengthen the unwound portion of a voice coil bobbin to minimize treble resonance.
An acoustic waveguide directs low-frequency sound to improve privacy and reduce leakage.
A wafer-level interposer connects to a MEMS diaphragm through a small passage aperture, preserving electrical contact area.
Dual-period irregularities on a thermoplastic diaphragm increase adsorption stability by 10-15% while maintaining low frequency response.
A screen sound device uses a hard substrate to transmit vibration from the vibrator directly to the display panel.