Microphones TRIZ Cases

A controller applies transfer functions to audio signals, compensating for acoustic pressure changes in shared enclosures to reduce diaphragm interference.

A noise cancellation device uses a distance measuring module to track user position and generate anti-noise signals via destructive interference.

Color-changing status indicators on wearables resolve ambiguity in user availability by providing clear visual signals.

An integrated resistor heater produces controlled acoustic signals to enable self-testing and noise cancellation in MEMS microphones.

Spatial microphone arrays separate overlapping audio signals by exploiting directional differences, resolving frequency-domain filtering limitations.

Dry etching forms non-linear acoustic horns on substrates to amplify sound waves from piezoelectric transducers.

A substrate ground pad directs static electricity to chassis ground through the substrate sound hole.

Processor generates antiphase signals via audio output units to offset external noise while preserving desired audio input integrity.

Separating signal lines from power supply lines prevents digital noise interference on the common ground, ensuring high-fidelity sound quality.

A processor compares signal levels from multiple microphones to identify wind noise spikes and applies targeted suppression gains.

Adaptive hearing protection device dynamically adjusts attenuation levels based on real-time sound analysis to maintain audio clarity.

Dual-band microphone arrays detect ultrasound from user devices and human audio to resolve active talker identification accuracy against background noise.

Motion sensors feed device movement data to a mobile beamformer, adapting coefficients to suppress interfering signals during operation.

A crosstalk cancellation filter set uses a pressure matching system and an obstructed field model to deliver binaural signals without headphones.

Segmenting the transducer body from interchangeable housings reduces manufacturing costs while maintaining sound quality.

Through-connections provide electrical pathways and mechanical stability for deflectable lamellae, resolving substrate area constraints.

A networked loudspeaker platform uses stimulus signals and microphone arrays to estimate participant locations within a time-synchronized system.

Forward and rearward bent plates reinforce the loudspeaker frame, resolving stiffness versus weight trade-offs.

A wind detector analyzes spectral slope, ratio, and coherence to estimate wind levels for a suppressor that adjusts panning coefficients.

Magnetic bases and a flexible waterproof sleeve join two speakers into a portable unit that resists water damage during outdoor use.

Replacing open cell foam and membranes with a single closed cell foam body eliminates sound transmission loss and mechanical failure risks.

Nesting the rotating shaft inside the middle shell prevents dust accumulation and breakage while maintaining smooth cover rotation.

Automated positioning and tone comparison eliminate manual placement errors while reducing inter-operability testing time.

A detachable audio module mounts on a lighting housing to provide simultaneous sound playback and illumination.

Anchor suspension isolates the diaphragm from substrate thermal stress, resolving mechanical stability issues while maintaining compact size.

Segmented backplate regions with distinct open areas resolve the trade-off between mechanical strength and signal-to-noise ratio in capacitive MEMS transducers.

Electronic helmet integrates active noise control with music and communication functions, reducing product cost while maintaining portability.

Wearable devices reassign primary and secondary microphone roles based on real-time orientation data to optimize audio capture.

Angled trapezoidal latches engage screw columns via torsion springs, resolving installation complexity while ensuring reliable locking.

A loudspeaker assembly uses a horn portion with increasing cross-sectional area to enhance acoustic impedance matching.

A tensioned membrane preset at a specific fabrication temperature controls sensitivity and frequency properties in a micro electro-mechanical system microphone.

Adjustment mechanism moves ear lid to seal ear canal for attenuation or open it for clear speech.

A composite polymer matrix controls the release of macromolecular drugs, resolving diffusion limits caused by chain entanglements.

Relative transfer-based covariance constructs directional matrices aligned across frequency bands, isolating target speech from dominant noise sources.

A multi-floor MEMS microphone stacks cavities to expand the back chamber volume within a compact housing footprint.

A noise reduction system estimates near-field speech presence using multi-dimensional spatial feature vectors derived from microphone array signals.

A portable device adjusts power converter voltage levels based on detected audio modes to optimize energy usage.

A vehicle voice recognition system adjusts its beam forming region based on detected driver seat positions to optimize sound source data collection.

Dedicated microphone captures lens housing noise while Fourier transform isolates acoustic signals, resolving incomplete noise reduction from sliding sounds.

Multi-domain analysis of time, frequency, and spatial signals detects wind noise presence, enabling targeted reduction that preserves audio signal clarity.

A bone conduction physiological sensor detects heart rate signals through temporal bone vibrations to stabilize exercise data.

Adaptive directional microphones in eyeglass frames eliminate ambient noise interference, enabling reliable hands-free communication in noisy environments.

Spring members suspend the diaphragm away from structural features to prevent sagging and stiction caused by residual stress or gravity.

A headset mount with a rotatable wire form secures earpieces to helmet rails.

Transparent speaker housing directs light from internal LEDs to the user, preventing obstruction by structural components.

Switched-mode power supply circuit reduces power dissipation in microphone arrays by dynamically adjusting regulator output based on battery voltage.

Adjustable directivity in horizontal linear arrays increases spatial resolution and sweet spot size without adding fixed hardware complexity.

A monolithic mesh membrane acts as a particle filter between the acoustic port and MEMS chip, resolving package size constraints.

A headset uses phase differences between inner and outer microphone signals to detect user speech.

An audio device uses acoustic interference arrays to direct sound channels based on physical orientation.