Microphones TRIZ Cases

A wireless earbud uses a curved stick housing to create a third contact point outside the ear canal.

Segmented dampers absorb horizontal and vertical vibrations, enabling high-quality audio while maintaining a compact form factor.

Upmixing stereo signals and applying directional filters to generate distinct audio beams from two loudspeakers.

Segmented shielding between power and microphone conductors in a headphone cable reduces electromagnetic interference while simplifying manufacturing alignment.

Integrated hearing protection device merges radio transceiver with on-board siren board to transmit clear alerts through ambient noise exceeding 70 dB.

Housing sound guiding holes guide internal waves to interfere with leaked sound, reducing leakage by 20 dB without adding weight.

A flexible substrate speaker uses dynamic beamforming to adapt audio output based on device orientation.

Automated balance controller adjusts front and rear microphone gains based on imaging signals to resolve operator subject audio level imbalance.

A pressure sensor assembly isolates the transducer via a cavity and flexible housing, suppressing turbulence noise to improve shooter localization accuracy.

Compliant clamping layers reduce peak tensile stress on the deflectable membrane, enabling robust shock resistance without sacrificing acoustic sensitivity.

Electroplated speaker housings form a Faraday cage that blocks electromagnetic radiation, resolving aviation grounding issues and restoring sound quality.

An acoustic control apparatus generates directional sound fields using multiple speakers and calculated filter coefficients.

A MEMS transducer couples a secondary membrane to a primary membrane via a rigid structure, increasing capacitance per unit area while maintaining sensitivity.

A headset system uses a control circuit to toggle between ambient sound and voice communication modes via separate microphones.

Uniformly dispersed carbon fibers form a thermal conductive network within sound-absorbing material to enhance heat dissipation in speaker rear cavities.

A headphone housing features a peripheral channel with a bridge member that captures the audio cable in slidable engagement for customizable positioning.

Dynamic gain adjustment in a second filter group suppresses whistling caused by cavity structure changes while maintaining audio quality.

Screen printing deposits patterned electrodes and rigid pillars to form a piezoelectric microphone structure with high area ratio.

Replacing rust-prone screws with a snap-fit mechanism, this design prevents falling while allowing rapid manual assembly.

A decentralized modular structure distributes computing power across autonomous sound transducer units to enable scalable spatial audio reproduction.

Vertical stacking of the rear cavity beneath the magnetic circuit system resolves the trade-off between low-frequency performance and device miniaturization.

An RF distribution system modulates detection signals through coaxial ports to identify connected receivers and verify connectivity.

A retractable media system conceals speakers within a ground-mounted casing using a drive unit and camouflage cap.

Rotating elliptical speaker assembly fits behind structural panels through narrow vertical openings.

Skipping samples in digital streams before decimation filtering reduces hardware area and energy consumption while maintaining precise delay alignment.

Time-aligned optical vibration data selects acoustic signal portions, improving speech detection accuracy in high ambient noise.

Horizontal cavities in the sacrificial layer reduce effective step height, relaxing photolithography precision requirements for thicker acoustic structures.

A spherical audio camera identifies direct and reflected signals in spatial distributions to coherently sum them for improved signal-to-noise ratio.

Gain compensation lookup tables reduce computational load while stabilizing multi-beamformer noise suppression.

Replacing optical readouts with capacitive torque sensing eliminates packaging complexity while maintaining high directivity and low noise.

An applicator with aligning grooves positions the composite film to resolve deviation issues during manual application on small earphone surfaces.

Segmentation and extraction principles divide the headset into a shared accessory and replaceable mobile unit module to resolve hygiene versus cost trade-offs.

A rigid cavity wall with air permeability holes supports sound absorbing material in miniature loudspeakers.

A cover-baffle-stand system stabilizes dipole speakers while converting electrical energy into acoustic waves using electrostatic membrane transducers.

Adjustable magnetization reduces the gap between the ear cup and helmet foam, improving seal integrity and noise isolation.

A curved foam microphone attachment attenuates background noise through acoustic absorption in its hollow cavity.

Non-uniform back plate holes optimize pitch values to lower acoustic noise without compromising structural robustness.

Mushroom-cap zeolite beads adsorb gas in the back volume, dampening pressure fluctuations and improving bass response without increasing physical device size.

A sound producing device uses a suspension ring height difference to expand the front acoustic cavity sound hole area.

An axisymmetric speaker design uses a cantilevered foot to isolate subwoofer vibrations, eliminating dead spots and buzzing in room audio distribution.

A centrally arranged loudspeaker array uses beamforming to create separate sound cones, resolving interference between adjacent listening zones.

A collapsible acoustic goniometer uses four microphones to determine the direction of arrival of sound events in three dimensions.

Anisotropic and isotropic etching forms MEMS cavities that enlarge volume while preserving the carrier wafer bonding area.

An integrated MEMS transducer package overlaps the electronic circuitry footprint with the bonding region, reducing die area and increasing dies per wafer.

A Bluetooth headset chip runs hearing loss correction software to deliver hearing aid functionality without hardware modifications.

Capacitive sensors detect earpiece orientation on the headband, enabling automatic alignment that reduces bulk and eliminates manual adjustment.

Segmented acoustic paths and tilted speaker orientation resolve the trade-off between structural complexity and immersive stereo sound field generation.

Curvature-optimized control signals in microelectromechanical loudspeakers reduce mutual extinction of sound pulses, increasing net acoustic pressure.

Spatial filter application unit processes sound pickup signals based on talker orientation information to improve audio image localization accuracy.