Microphones TRIZ Cases

An array of robust microphones emulates ribbon motion via pressure differences, resolving mechanical fragility in live performance environments.

A noise reduction device adjusts cancel signal output based on movable component status to stabilize active noise control.

An adaptive prediction filter aligns audio signals from multiple microphones to produce an enhanced output.

Dual-stage noise reduction architecture segments microphone arrays into main and reference channels to extract desired audio signals.

Shortened sound channel and hydrophobic membrane minimize wind noise, enabling airborne sound detection up to 100 km/h.

Pre-charging coupling capacitors reduces charging time during power-up, lowering energy consumption while maintaining detection accuracy.

A strain absorption bridge uses flexible materials to dissipate forces, protecting sensitive components from stress-induced damage.

A waterproof membrane with a spaced non-joining portion covers electronic device openings.

A sound source separation system uses a controller to perform two-dimensional Fourier transforms on microphone data.

A feedback microphone analyzes acoustic pressure to determine earbud insertion status.

A microphone array estimates sound direction of arrival to generate personalized acoustic transfer functions for near-eye displays.

An asymmetric cross-sectional enclosure suppresses abnormal frequency reflections by creating complex reflection paths that prevent distorted sound quality.

A vehicle processor detects buffeting noise from climate control vents to alert the driver.

A microphone unit integrates a film with a fixing member on a substrate for easy attachment.

Adhesive bonding of foldable corrugated plastic panels creates a tool-free assembly that reduces shipping weight and burden.

A miniature receiver uses an intermediate volume to couple two moveable diaphragms for synchronized motion.

Vented speakers direct low frequency sound to users while preventing unwanted acoustic leakage into surrounding environments.

A wide sense gap MEMS microphone design increases resonant frequency and withstands higher bias voltages.

A sound guide tube redirects back waves through the loudspeaker hole to enhance bass output in open headphones.

RF sensors detect user presence to steer audio beams, eliminating camera privacy risks and lighting sensitivity.

A tetrahedral microphone array mounts four pressure sensors on opposite PCB surfaces to generate directional pressure gradients.

Adhesive bonding of a polymer covering film protects MEMS cavities while reducing structural form and material costs compared to silicon wafers.

A steerable speaker array directs audio content to specific aircraft occupants using phased ultrasonic transducers.

Axial sensing member extends along length to boost sensitivity without increasing outer diameter, preventing comfort loss and recognition errors.

Ultrasonic air pulses modulate sound pressure to resolve enclosure volume and distortion trade-offs.

Comb tooth parts form radial airflow channels between the vibrating diaphragm and substrate for rapid pressure equalization.

Bone conduction earphones detect wearer voice signals to automatically switch operating modes, resolving manual control inconvenience during hands-free use.

A vehicle audio processing system calculates time lag between microphone streams using cross-correlation to align signals.

Separating voice coil and telecoil channels prevents anti-noise interference in hearing aids, ensuring clear speech delivery.

Axisymmetric transducer array uses integer Legendre polynomials with control parameter Z0 to define shading functions.

Evanescent wave audio transducers concentrate sound energy near the wearer while preventing leakage to nearby observers.

Arc transitions in the fixed part distribute stress evenly, preventing breakage at right-angle connections.

A hearing aid wind shield converts turbulent airflow to laminar flow, suppressing wind noise without increasing device bulk.

Rotatable panels on a loudspeaker cabinet reflect sound waves to create acoustic delay and reverberation.

A wireless earphone system detects placement in a charging case to automatically swap master and slave roles.

Adaptive acoustic valves switch hearing device fit configurations based on sensor context to resolve occlusion and frequency performance trade-offs.

A neck speaker directs ultrasonic audio to resolve into audible sound while reflecting Doppler shifts from head motion for input detection.

An asymmetrical horn waveguide directs sound toward targeted areas while minimizing interference with room objects.

Segmenting the membrane into fixed and displaceable portions with reduced overlap minimizes parasitic capacitances, improving sound signal accuracy.

Beamforming loudspeaker arrays apply spatial ducking to redirect program audio, resolving the trade-off between alert intelligibility and listener distraction.

Rotatable joint connects main device and sound output portion to eliminate separate left and right ear manufacturing costs.

A body-worn acoustic device uses four transducers to deliver sound directly to the ear while radiating anti-phase waves outward.

An adsorbent skeleton manages gas dynamics to reduce impedance and improve bass response in compact enclosures.

Segmented mesh design with magnetic attachment solves debris clogging that degrades acoustic performance.

Audio apparatus adjusts sound emission modes based on installation posture using a stored conversion table.

A binaural hearing system derives common gain signals from reference inputs to mix beamformer outputs for targeted noise reduction.

A mixing circuit relays amplified audio signals from a single headset to multiple computing devices using tailored resistors.

Nesting audio components within hollow ornaments directs sound through surface holes, eliminating bulky headphones.

Sound processing apparatus calculates spectral ratios to derive phase correction values for microphone signals.