Microphones TRIZ Cases

A microphone array detects persistent noise sources using broadside signal analysis to filter interference from audio processing.

A processing device updates virtual wall layouts based on sensor data to maintain accurate sound localization.

Segmenting the ear cup cover into ventilative and air-tight layers resolves the trade-off between heat dissipation and acoustic isolation.

Calibration gains align primary and secondary microphone sensitivities, resolving inconsistency issues that degrade mobile phone noise reduction effectiveness.

Directional beamforming isolates loudspeaker media sounds from background noise to ensure accurate identification.

A preconfigured foam insert creates a cavity within the loudspeaker back volume to facilitate gas exchange between the transducer space and sound adsorber material.

Suspended mounting with flexible isolation elements decouples the speaker cabinet from rigid wall structures, preventing vibration transfer and rattling.

Two-stage beamforming adapts spatial sensitivity and combines signals to cancel wind noise while preserving voice clarity in headsets.

A dual sensing structure microphone module with a communicating cavity design enhances signal quality through tandem diaphragm vibration.

A magnetic earphones holder secures audio devices to clothing via magnetism while routing cords through a dedicated groove, preventing tangling.

Cutout portions trap magnetic fluid via internal magnet force, reducing scattering during high-amplitude operation.

Dual microphones on a vehicle headrest capture speech signals for time alignment and gain correction, resolving loudness variations caused by talker movement.

A headset uses a detachable circumferential band to adjust speaker enclosure size for different ear dimensions.

Integrated rigid tube clamp hides cables behind clothing, eliminating scratching noise from cable contact.

A noise extracting device separates individual noise signals from respective microphone units using directionality combining.

A removable cartridge with a non-planar frame and suspended membrane fits between a speaker cone and bezel.

Microphones capture ambient noise changes to detect user gestures without adding mechanical input components.

Vertical stacking of horn pairs reduces speaker assembly volume while maintaining directional control.

A speaker location identifying system uses a camera and image recognition unit to detect speaker positions for audio parameter adjustment.

Segmented speaker arrays control vertical and horizontal sound patterns to optimize energy distribution for complex venue geometries.

A dual-chamber earphone housing positions a feedback microphone at an angle to reduce sound interference.

Modified MVDR beamformer coefficients account for sensitivity mismatches to reduce white noise gain by 4 dB while maintaining array gain.

A voice canceling headset system generates an anti-noise signal through outer speakers to mask the user's vocal sounds.

Image-guided beam forming targets far-field audio sources to improve speech recognition precision while lowering system complexity.

A directional noise reduction system adjusts beamforming modes to enhance voice capture quality.

A folded acoustic horn integrates front and rear channels within a single symmetrical enclosure to amplify sound across frequency ranges.

An acoustic signal processing apparatus generates effective signals via beamforming to isolate target sound sources from background noise.

A method selects optimal microphone signals for echo suppression by analyzing sub-band noise power and signal entropy across multiple input channels.

A pool sound system uses a radio-frequency module with an antenna positioned above the waterline for reliable wireless audio transmission.

An elongated part abuts the concha while a slitted body fits over an earpiece protrusion, preventing dome detachment and skin annoyance.

Equalization filter compensates spatial aliasing and noise to restore spectral power balance in spherical microphone array recordings.

A segmented eartip structure directs liquid earwax into observable grooves, preventing mesh clogging and maintaining sound transmission quality.

Spiral ribs with continuously varying distance from the speaker unit disperse acoustic resonance across multiple frequencies.

Adaptive beamforming compensates for device rotation by interpolating filter coefficients, isolating target audio from diffuse noise.

A MEMS microphone design uses a protection film to cover the backplate rim and anchor element.

Circuit board blocks battery heat from reaching the wearer, enabling standard flat batteries.

Adaptive filters generate predicted microphone signals from correlated inputs to enhance audio processing operations.

An adjustable speaker transducer resolves the trade-off between sound quality and privacy by allowing dynamic repositioning relative to the ear canal.

Flexible circuit board connects earbud receiver to housing microphone in compact wireless headset design.

A treble loudspeaker phase plug mounts directly to a T-shaped iron using a stepped cylindrical surface for precise positioning.

Segmented insulation layers form band stop filters that attenuate noise from back plate acoustic holes, improving the signal-to-noise ratio.

Phased array audio transmitters emit focused sound waves toward detected objects, reducing ambient noise pollution while improving pedestrian safety detection.

Networked emitters emit sound masking signals at selected frequencies to reduce noise in targeted areas.

A noise reduction apparatus detects resonance characteristics from a microphone signal to process and clean the audio output.

A clamshell-style mouth shield expands via panel springs and hinges to block lip reading while maintaining compact storage in the closed position.

Caps with resonance spaces and wire notches increase sound frequency, resolving low-frequency clarity limits in conventional copper or ceramic plate designs.

Segmenting sensor arrays into distinct groups resolves the contradiction between wideband directivity and physical array size constraints.

Inverse filtering processes feedforward and feedback microphone signals to recognize wind noise, resolving accuracy issues when noise cancellation is active.

Opposing diaphragms create directional sound fields via interference, reducing far-field leakage while maintaining near-field efficiency.

Protruding back cover increases sound cavity volume without enlarging device footprint, resolving the trade-off between audio quality and portability.