Microphones TRIZ Cases

An acoustic system uses an electrical resistance to heat glue for assembly detachment.

A bowl-like diaphragm structure in a MEMS microphone reduces thermal noise and sensing distortion by enabling uniform vibration.

A sound pick-up device computes power spectrum ratios across frequency bands to extract target area audio from beamformer output signals.

Detachable ear cups enable a single audio unit to switch between immersive listening and shared modes, eliminating the need for multiple separate devices.

Segmented diaphragm anchors prevent sagging without reducing rigidity, resolving the flexibility trade-off in MEMS microphone sensitivity.

Integrating an inductor within the back volume filters RF interference while maintaining drive capacity and preserving acoustic signal quality.

A speaker array with signal processing localizes sound to one ear using beam formation and cancellation units.

Support pillars fix the membrane and back plate to increase resonance frequency without lowering signal noise ratio.

Array speaker apparatus synthesizes virtual sound sources using head transfer functions to generate precise left and right audio signals.

Segmented cantilever beams reduce air damping and improve signal-to-noise ratio while maintaining a compact device footprint.

Single microphone assembly integrates MEMS device, analog interface, and DSP chip within one enclosure.

A multi-listener stereo array shapes acoustic signals to deliver distinct audio patterns.

A circuit assembly generates an internal supply voltage higher than the external supply to process input signals.

Capacitive sensor electrodes capture ear images processed by a machine learning classifier to determine orientation and reverse left right audio channels.

Frequency domain power comparison enables accurate voice activity detection in noisy environments, reducing continuous transmission to extend battery life.

Sidewall reinforcement allows thinning of the carrying bottom portion, increasing back chamber capacity without compromising structural strength.

Reducing air pressure inside the back volume minimizes viscous losses, allowing miniaturized MEMS microphones to maintain high sound quality.

Audio analytics module detects impairments like wind noise, providing real-time alerts to correct recording errors.

Phase-adjusted transducer arrays focus hypersonic energy into audible sound at targeted locations, resolving non-linear air response inefficiencies.

Nested modular housing isolates acoustic drivers while preventing moisture ingress, resolving the trade-off between compact form factor and reliability.

Smart speaker digital room correction uses ambient audio recognition to optimize acoustic output quality.

Configurable earphone microphone arrays improve speech recognition accuracy by creating directional beampatterns that reject ambient noise.

A targeted directional acoustic response system uses a modified transimpedance matrix to optimize sound field energy distribution.

Two phase-offset openings in a MEMS cavity redirect fluid oscillations to recover acoustic energy, eliminating the need for a separate enclosed back volume.

Segmented subarrays optimize geometry per frequency band, reducing noise sensitivity while maintaining white noise gain across the spectrum.

Physical acoustic measurement replaces mathematical simulation to resolve surround sound accuracy trade-offs.

Cross-correlates average power signals from beamformers to distinguish single talker reflections from multiple speakers.

An articulated hinge connects the main and supplementary units, allowing angled insertion into wall cavities while maintaining acoustic coupling.

Integrating the microphone into the frame seating portion removes separate mounting brackets, reducing earphone volume while maintaining acoustic reliability.

A biplane speaker array uses an arcuate tweeter line to shape vertical sound dispersion.

Deformable elastomeric venting section breaches acoustic duct when pressure exceeds threshold, protecting microphone diaphragm from aerodynamic shock pulses.

Housed bent whip antenna in ear hook resolves signal loss through skin while reducing custom component costs.

Surface-mounted rails allow sliding loudspeaker modules into wall cavities, eliminating stud cutting and preserving structural integrity.

A directional sound speaker array focuses acoustic energy into a narrow beam directed at a specific target region.

Pre-set rigid inserts prevent plastic warpage to maintain acoustic performance stability.

A rotatable game call speaker system directs acoustic output via independently controlled units.

A surface augmented ray-based acoustic modeling technique combines room response with device plane wave scattering to generate accurate microphone audio data.

A vehicle noise masking system outputs frequency-specific sound waves to cancel high frequency combustion noise.

Segmented porous blocks with specific pore distributions enhance low-frequency sound pressure while reducing noise in miniaturized microspeakers.

Segmenting audio bands between a directional second-order and omnidirectional microphone rejects feedback noise by positioning speaker output within the null.

Segmenting the peripheral anchor into discrete points allows the diaphragm to move uniformly while reducing stress-induced distortions.

Cylindrical casing directs piezoelectric vibration to ear canal cartilage while damping mechanism reduces sound leakage.

Double-layer capacitive sensors track a differential capacitance reference value against minimum out-of-box measurements to resolve aging-induced drift errors.

An earpiece embeds excitation signals in audio clips to emit into the ear canal, resolving inconvenience of traditional otoacoustic emission tests.

A MEMS sound transducer uses interdigitated comb electrodes to increase capacitive coupling area for improved acoustic sensitivity.

A binaural audio processing system applies minimum mean squared error analysis to primary and reference microphone signals for noise removal.

Embedded audio watermarks enable cross-correlation synchronization across distributed devices, resolving latency mismatches in ad-hoc meeting environments.

Segmenting a spherical array into a conical subset reduces weight while maintaining constant beam width and controlling side lobes via null bearing truncation.

A single laser receiver processes combined optical signals from multiple transmitters to detect acoustic vibrations via self-mix interference.

Band-limited virtual beams cancel acoustic echoes and noise interference, maintaining voice clarity as speaker components age.