Microphones TRIZ Cases

Individually delayed and weighted transducers form a common wavefront that evens sound pressure and reduces reflections across public areas.

Synchronized microphones and frequency-domain correlation locate sound sources despite noise, reverberation, and costly spatial-audio hardware.

A two-sided support member separates the microphone from the speaker hole, preserving conduit space and reducing sound leakage for ANC.

A reference audio device and spatial transfer functions compress multi-channel speech data, cutting bandwidth demands for backend processing.

Combining instantaneous and fixed RTF vectors helps an MVDR filter converge quickly while limiting noise-directed convergence and speech distortion.

See how headphones use audio-responsive airflow control to create realistic ASMR air puffs while reducing mechanical noise.

Pressure differences can bend MEMS ventilation flaps; a peripheral frame and cross-member support the membrane to preserve sensitivity and corner frequency.

Overlapping collars and rims create a ventilated passage that blocks water ingress and helps reduce condensation in electronic housings.

Speech detection switches between in-canal and external microphones, using beamforming and adaptive cancellation for whispers and body noise.

A detachable mouth cover reflects voice into the space around the mouth and limits sound leakage during headphone conversations.

A frequency adjuster creates different left and right background frequencies, then mixes them with external audio for binaural beat induction.

User detection and tracking switch DSP modes for one or multiple listeners, improving sound consistency as positions and group size change.

Local speech recognition handles routine queries on the ear-wearable device, while complex requests route to network resources when available.

Differential gap distances create a contact stop that limits shock-induced movement and protects MEMS electronic elements without added hardware.

Dynamic switching between in-canal and external microphones adapts speech capture to noise, context, and voice content.

High-wind calls can confuse speech with uncorrelated wind noise; microphone energy differences select a target signal before AI processing.

A frequency adjuster splits mono background audio into left-right frequency differences, then mixes it with external audio to preserve stereo quality.

Radar tracks participant body positions to identify side conversations and filter microphone noise, helping remote listeners hear the main speaker clearly.

Weighting microphone-element subsets reshapes pickup lobes without changing steering direction, helping cover dispersed speakers more effectively.

A secondary earbud encodes microphone audio for the primary earbud, enabling mixed shared calls with delay compensation and less echo.

A tracking-bias loop combines switched-capacitor and diode-based resistance to reduce offset while improving microphone linearity, leakage robustness, and overload recovery.

A light beam larger than the diaphragm aperture keeps optical sensing in range, improving sound detection and sensitivity.

Calibration tones reveal relative directions and distances, letting mixed devices synchronize home-theater audio without shared clocks.

A cross-beam assembly anchors sub-diaphragms as cantilever beams, increasing compliance and microphone sensitivity.

Microphones separate background noise from fire sound signatures to identify hazards earlier and reduce false alarms.

Multiple instability detectors, latch logic, and timers adjust the driver command in real time, reducing ANR chirps and spikes without losing noise reduction.

Concentric rings and tapered channels equalize acoustic paths, reducing interference and improving speaker frequency response.

Surface, ceiling, and wall-mounted units coordinate through a hub to expand audio coverage and simplify room changes.

A concave deflector redirects airflow around a head-worn microphone, creating a low-flow region that reduces outdoor wind noise.

An intermediary talk circuit places a microphone on the face side and a speaker outside the barrier to reduce voice muffling.

Delay filters compensate for speaker path-length differences, reducing spatial aliasing while preserving multi-speaker audio coverage.

Adaptive ear cup sections and adjustable shapers maintain eyeglass-temple contact while sensors compensate for acoustic gaps.

An anchored frame and cross-member reinforce MEMS ventilation flaps, limiting static bending while preserving membrane compliance and sensitivity.

An open-structure central damper and air passages improve ventilation while damping resonances and distortion in vehicle audio.

Energy differences between earphone microphones select the target voice before AI processing, improving call intelligibility in strong wind.

Dynamic bias-voltage tuning tracks PMUT resonance and synthesizes reference echoes to improve time-of-flight accuracy beyond saturation limits.

Pure digital drive, modular voice-coil assemblies, and connected airflow cavities improve bass response in a compact loudspeaker structure.

Dynamic phase and amplitude control steers multiple CBT sound beams around listener position while preserving consistent beamwidth.

Switching between playback and microphone references lets AEC and AIC suppress echo or wind noise for clearer speech detection.

By shifting support-rod load to the shoulders and chest, the backpack mechanism reduces hand fatigue during long recording sessions.

An electronic device estimates ambient-sound features and selects voice parameters for clearer beamformed calls in noisy environments.

A circuit-board end cover combines enclosure, coupling, and elastic conduction to simplify electroacoustic assembly and reduce overall thickness.

An RF transmitter, cellphone relay, and bone-conduction headset deliver sound to the inner ear while limiting background-noise interference.

An automatic valve uses external water pressure to block a wearable acoustic port and shield the sound-permeable membrane.

Separate audio channels follow each video angle during playback, using timbre correction, stereo beamforming, and gain control to improve audio matching.

An elastic urging member presses a slider claw into shaft grooves, enabling stable microphone adjustment and resisting unintended unlocking.

Corrugated membrane structures with rounded and sharp corners reduce stress and air leakage to improve MEMS microphone SNR and LFRO.

Two-axis speaker rotation adapts sound direction to room layouts, reducing overlap and dead zones for more uniform audio coverage.

A projecting stopper reaches the boundary surface before the cross piece, absorbing impact energy and improving MEMS displacer reliability.

Universal headphone parameters miss model, serial-number, and left-right variation; per-headphone sharing enables personalized audio compensation.