Microphones TRIZ Cases

Gyroscope and accelerometer fusion lets swimming headphones identify strokes and user indexes for evaluation and correction during training.

Cyclic sampling across multiple audio receivers localizes sound and improves speech perception in noise with a single hearing implant.

Pausing source tracking while a user keeps speaking cuts resource use and preserves beamforming accuracy by avoiding retargeting interference.

A vehicle-linked transmitter sends head-unit audio to battery-powered speakers, enabling aftermarket upgrades without heavy vehicle power draw.

A flexure-linked earpiece uses multi-point outer-ear contact to keep sensors stable, reduce sound occlusion, and improve long-wear comfort.

Vibration-driven airflow is redirected to adjacent heat sinks, boosting loudspeaker cooling through combined conduction and convection.

Selective channel-based noise suppression reduces wind noise in stereo or spatial audio while preserving key spatial cues for immersive playback.

A synthetic speech model rebuilds clearer voice from bone conduction signals, cutting noise interference and restoring lost speech detail.

Airflow from diaphragm vibration is routed through a yoke through-hole to cool onboard amp components without degrading sound pressure transmission.

An elastic sheet suspends the headphone cup to improve ear sealing, cut leakage and noise, and remove failure-prone pivot joints.

Carrier frequency is tuned to room reflections so user presence can be detected more accurately with lower power than camera-based sensing.

External laser vibrometry captures surface vibrations and uses TDOA processing to locate hidden sound sources inside solid enclosures.

A two-stage keyword spotting pipeline cuts network microphone power and processing load while preserving wake-word accuracy.

Non-collinear flat and dynamic drivers, damping, and active crossover tuning cut headset interference, resonance, and distortion.

Separate headset and microphone radios avoid shared-bandwidth hands-free limits, preserving higher-quality audio links and user experience.

Compressed expandable foam fills speaker chamber voids after heating, restraining sound-absorbing material movement and preventing breakage.

A dual-layer PCB layout expands ear hook headphone circuitry in the same housing while limiting EMI, weight, and bulk.

Wave field synthesis and performer tracking deliver customized monitor mixes through speaker arrays without isolating ambient venue sound.

Average-radius spherical coordinates let wearable microphones generate pseudo-ambisonics signals for sound direction and type estimation.

Indoor reflection and frequency splitting create spatial sound from one speaker unit, avoiding extra rear and side speakers.

Automatic input detection lets a portable speaker switch between wired and wireless audio sources while preserving connection flexibility.

A deformable two-color molded waterproof member blocks water-pressure mis-triggers while preserving sensitive headphone button operation.

A suspended-ceiling housing positions the microphone array below the ceiling plane to cut HVAC and tabletop noise while meeting code constraints.

A gravity-sensed microphone layout lets an ear-clip earphone switch for left or right wear while preserving sound pickup and noise reduction.

Adjusting APG operating frequency compensates for manufacturing variation, keeping sound pressure levels within a target range.

Bonded triple-diaphragm, dual-backplate MEMS architecture boosts capacitance, sensitivity, and SNR without increasing size or process complexity.

Audio is compressed on an external device to fit ear-worn memory, enabling offline playback with lower power use and preserved perceived quality.

A spur and internal gear with an O-ring or washer gives headset microphone booms smooth adjustment and stable positioning without slippage.

Tracks the active talker and switches beam or microphone pairs in real time to improve conferencing noise cancellation as positions change.

Coaxial twin speakers and isolated acoustic cavities raise earbud sound pressure while balancing pressure through a relief hole.

Dynamic speaker channel mapping uses detected user position to focus audio energy and keep sound clear for off-center listeners.

A low-power short-range module triggers speaker output from a separate audio amplifier chip, enabling retrieval even when the main SoC is off.

Phase and magnitude calibration coefficients stored in each microphone help preserve beamforming accuracy despite production tolerances.

Direct wireless audio between hearing devices cuts latency and removes external controllers while improving speech with echo and noise cancellation.

Portable panels, sensors, and DSP stabilize guitar amplifier tone by reducing reflections, resonances, and frequency filtering across rooms.

A malleable dual-lumen earhook separates cable and support wire to reduce cable pull, improve comfort, and keep a wired earpiece securely seated.

Amplifier current signatures let ANR headphones distinguish user taps from acoustic noise for button-free mode and audio control.

A rotating joint and magnetic coupling let a detachable headphone accessory adjust angle without rubbing conductive contact pads, extending service life.

Elastic connection portions and a back-plate anchor limit diaphragm overtravel in a MEMS microphone chip, improving reliability.

Suppression speakers use destructive interference and feedback control to keep sound within the target throw angle and cut leakage outside it.

A fluidly isolated microphone path near the acoustic port improves ANC in non-occluding earbuds while shielding the microphone from contaminants.

Microphones and speakers cancel noise entering through an open window, reducing room noise while preserving natural ventilation.

A configuration circuit detects wear state and retunes the driver so one speaker module works as both an earbud and an in-ear headset.

Magnetic bead modules placed on earphone wires and ear hook lines suppress outward electromagnetic radiation while preserving wired data transmission.

Hybrid MEMS, hot-wire, and accelerometer sensing with virtual microphones improves vehicle ANC for airborne noise in the 300 Hz to 1000 Hz band.

A rear-mounted waveguide speaker routes sound around a flat panel edge, using fins to improve listener-facing directivity without adding bezel clutter.

Interchangeable mounting modules separate handheld, lavalier, and boom microphones to save space, stay stable, and prevent tangling.

Microphones and sound transducers reshape fan acoustics by masking harsh tones, enabling higher cooling performance with less annoyance.

Circularly arranged directional microphones use modal beamforming to steer pickup across azimuth while rejecting stadium noise.

Electrode segmentation lets one MEMS transducer emit and receive audio and ultrasonic signals with higher sensitivity and wider bandwidth.