Variable frequency filtering drives a body-worn vibrator to reproduce deep bass without large speakers, improving immersion in compact headphones.
A spaced support portion inside the package dissipates local heat and prevents cover deformation from damaging acoustic wave elements.
A shape-memory collapsible back chamber expands during playback to boost loudness and low-frequency response without making the device thicker.
Multi-directional infrared LEDs and voice commands let one remote control multiple multimedia devices without aiming or physical interaction.
Plural resonant chambers damp specific resonances and extend speaker bandwidth in compact electronic enclosures.
Microphone feedback and signal filtering compensate road noise, leaked audio, and passenger speech to keep in-cabin audio intelligible.
Embedding a piezoelectric transducer inside a layered structural member preserves sound output in thinner information handling systems.
A woofer and acoustic vent facing at 90° or 180° in a manifold boost 20-100 Hz output while limiting enclosure size and distortion.