Microphones TRIZ Cases

Predistorting the aperture maintains directivity while resolving coverage trade-offs during steering.

A hearing protection device integrates microphones and processors to broadcast ambient sound while enabling push-to-talk communication via a mobile device.

Encoding dual microphone signals on a single cable line reconstructs clean audio, resolving noise reduction limits in legacy hardware.

A circuit processes audio signals using spatial statistics to detect near-field sounds for telephone speech enhancement.

A hearing system estimates personalized beamformer weights using own-voice transfer functions measured with close-talk microphones.

Orthogonal microphone array enhances low-frequency SN ratio by projecting microphones onto orthogonal axes for optimized spatial filtering.

A line array loudspeaker groups acoustic drivers with parallel axes to intersect at fixed or varied articulation angles.

A single-piece plastic shell encloses loudspeakers on a metal frame, eliminating visible assembly joints while maintaining structural integrity.

A computing device assigns feature values to signal sources and determines composite scores to select targets for spatial processing.

Secondary circuit boards enable precise acoustic matching of MEMS microphones while avoiding heat-induced frequency response alterations.

A MEMS microphone protrusion extends into the air gap to increase acoustic resistance and improve signal-to-noise ratio.

Differential silicon microphone chips use paired structures to boost signal amplitude and reduce common-mode noise.

Elastomeric membrane seals auditory prosthesis microphone against sweat and contaminants, resolving vibration transmission issues.

Segmented backplates with porous holes reduce viscous damping and prevent gap collapse, improving capacitance and yield.

A controllable high-fidelity sound system generates multiple spot-focused sound regions using adjustable sound reproducing elements and an audio controller.

A device foot uses interchangeable engaging members to adjust housing orientation angles up to 180 degrees.

Parallel columnar apertures balance protective strength with minimal sound transmission loss.

A baffle delays sound output from the speaker to align the error signal phase with the eardrum reference point.

A pivotable hearing aid operating element uses a snap connection to allow angled actuation, reducing manufacturing costs for left and right devices.

A micromechanical microphone diaphragm uses an outflow channel for rapid pressure equalization between its sides.

A vehicle system adjusts acoustic message frequencies to maintain consistent signal reception.

Segmented diaphragms balance opposing stresses across inner and outer regions to reduce bowing while maintaining high sensitivity.

Integrating touch screen displays into headphone earpieces enables tactile audio control and visual feedback.

A loudspeaker mounting system uses interlocking form-fit elements and a locking pin to secure an enclosure to a support structure.

Ultrasonic acoustic signals configure programmable microphones, eliminating wired connections that increase circuit complexity.

Wireless speaker modules use magnetic contact and Bluetooth to maintain continuous audio output during physical reconfiguration.

A sensor module combines sound pressure and vibration measurements to estimate particle velocity for active noise control.

A 3D AI avatar system processes microphone and vision signals to recognize active speakers.

Electromagnetic actuation swings a sound-reflecting member to focus audio, resolving uneven clarity across different listener positions.

Dual telescopic assemblies drive speakers along perpendicular axes, resolving the contradiction between sound quality and device appearance.

A sound production device uses ultrasonic transducers and a motion unit to generate directional audible sound waves.

Dual microphones estimate tapping noise via adaptive filtering and subtract it from the environment signal to improve voice clarity.

An angled baffle surface and sound absorbent sheet suppress high frequency anomalies, delivering 20dB attenuation at 1 kHz.

Segmented air chambers with adjustable openings resolve the trade-off between fine acoustic tuning precision and time-consuming manual port modifications.

An acoustic attenuator reduces sound pressure reaching a MEMS microphone membrane, enabling measurements up to 140dB without mechanical damage.

A vehicle speech system uses two microphones to separate driver voice from cabin noise, enabling accurate speech recognition without physical sound insulation.

A microphone backplate extension with a second through hole enables direct air discharge from the inner cavity.

A noise suppressing apparatus calculates suppression coefficients using a joint distribution model of sound derived from weighted statistical components.

A wearable voice processing system uses authentication data to filter ambient noise from microphone signals.

Merges distinct frequency arrays to resolve the trade-off between high spatial resolution and installation complexity in sonar systems.

Flexible band sensors conform to the scalp, reducing movement artifacts and improving data reliability.

A signal processing method sharpens consonant sounds by applying slope-derived gain to audio envelopes for clearer playback.

Integrating a neodymium magnet into the speaker housing enables attachment to metal surfaces, resolving limited placement flexibility of traditional speakers.

Segmented substrate levels restrict solder contact with sensitive components to prevent assembly malfunction.

A link member with adjusting through holes enables precise splay angle orientation between two speakers using a single pin.

Corrugated vertical MEMS membrane sections enable horizontal oscillations that increase sound pressure while preventing chamber ventilation.

Scalloped substrate holes enhance directivity while semiconductor manufacturing ensures uniform piezoelectric vibrator orientation.

Strip reinforcing ribs on the back plate improve mechanical strength without compromising acoustic performance.