Microphones TRIZ Cases

Processor monitors environmental noise to dynamically modify volume, pausing, or rewinding media content without user intervention.

Positioning driving units at frame attachment sides stabilizes vibrations and reduces saddle-shaped deformation in the vibrating unit.

Sub-threshold MOS transistors in dual current mirrors reduce voltage ripple and noise while stabilizing impedance across temperature ranges.

Segmenting the air gap into distinct regions prevents membrane contact at high sound pressure while maintaining sensitivity.

Auxiliary beamformer stabilizes steering vector estimation, reducing noise distortion and improving speech intelligibility.

A damping mesh with controlled acoustic impedance suppresses resonance peaks and total harmonic distortion in a MEMS speaker.

Frequency band division separates ear canal and external speech signals, enabling correlation processing that resolves poor noise reduction in specific bands.

Flexible printed circuit boards mount microphone devices into three-dimensional shapes to enable advanced spatial signal processing.

Segmenting port airflow with a NACA duct cools voice coils without disturbing acoustic tuning.

Segmenting the sensing area into two fixed electrodes suppresses linear distortion from electric field interference, improving audio performance.

An asymmetric sound channel with a wider root and narrower opening reduces wave reflection to minimize high-order harmonic distortion.

Cantilever design eliminates air flow resistance to improve signal-to-noise ratio in MEMS microphones.

Adaptive Wiener filtering optimizes spherical microphone array signal processing for accurate Ambisonics representation.

A dual dipole omnidirectional microphone array combines bidirectional and omnidirectional sensors to capture directional sound.

Acoustic response measurement detects ear interface mode to select optimal adaptive noise cancellation parameters.

A ceiling microphone array fixes its voice collecting direction when speaker output is detected to maintain accurate talker recognition.

Headrest and shoulderrest speakers emit directional audio signals to isolate user listening zones within vehicle seats.

Segmented internal volumes with multiple diaphragms maintain sound power while reducing receiver size for miniaturized hearing devices.

A surface mountable microphone package integrates two microphones on opposite sides of a single circuit board footprint.

Protective layers shield thin carbon nanotube films from external damage, resolving the durability trade-off in lightweight thermoacoustic speakers.

Sigma-delta modulation replaces complex analog circuits in pico speakers, reducing power consumption while minimizing noise and latency.

Adaptive wind noise canceller adjusts filtering strength based on motion sensor data to optimize audio clarity.

A wearable device uses a parametric array of speakers to focus audio output toward the user's ears from a distance.

Acoustic announcement signals guide manual tap gestures in hearing devices, resolving interaction errors caused by small control elements.

A support plate with a protruding portion distributes weight from hanging electrical devices through a cable pass-through hole.

Interleaved outlet channels in separate horn sections maintain wide horizontal dispersion while preventing high frequency directionality issues.

Distributed lighting fixtures capture audio streams for central processing to identify sounds, resolving noise interference in complex environments.

Curved nested funnels guide stratified air flow to reduce frictional drag and improve pressure wave transmission in compact audio enclosures.

Cylindrical hanging speaker assemblies reduce out-of-phase crossover wave cancellation by projecting in-phase soundwaves through optimized port channels.

Segmented receiver housings provide dedicated expansion spaces that accommodate extra components, resolving space constraints in compact audio devices.

Deformable diaphragm and pin mechanism in electromechanical microsystem amplifies movement amplitude while reducing energy consumption for actuation.

A generalized sidelobe canceller processes microphone signals to reduce wind noise while maintaining spatial noise cancellation.

Planarity control merges acoustic contrast and phase objectives into one cost function, reducing self-cancellation artefacts across wide frequency ranges.

Flexible diaphragms seal gaps between MEMS speaker driving parts and the substrate, eliminating sound leakage and acoustic short circuits.

Inwardly-facing transducers detect inner ear signals to monitor biometric conditions and identify acoustic leakage.

A wedge-shaped head contact piece with elastomeric material improves mechanical coupling to reduce vibro-tactile distractions in head-mounted wearables.

Coherence analysis updates filter coefficients to enhance directional sensitivity, resolving the trade-off between signal-to-noise ratio and array volume.

A unidirectional microphone unit uses a porous ring member to adjust sound wave routes by frequency for stable output.

Front and rear single-piece boots with recesses self-align the MEMS microphone, eliminating adhesive use and reducing air leakage.

A spatial audio processing apparatus determines directional components of captured signals to generate further audio outputs.

Nesting circuit boards vertically with a flexible connector minimizes earphone length and width while maintaining structural stability.

An open earphone positions a sound production component near the ear canal using an elastic ear hook to enhance listening volume.

An electrical resistor absorbs incoming acoustic waves to reduce parasitic resonance in underwater sonar projector transducers.

Arc surfaces on the back plate fixing portion distribute stress at connection points, preventing breakage under high sound pressure.

A MEMS transducer package uses a conductive substrate layer to form a continuous ground enclosure.

Segmented covering structure with through holes balances protective effect and acoustic resistance for fragile MEMS devices.

A sound output device positions a dynamic speaker inside a conduit to align axes and reduce interference between units.

A valve mechanism releases excess air pressure from a microphone front cavity to maintain acoustic integrity.

Segmenting 3D audio by depth data isolates sound for selected video regions, resolving unsynchronized playback issues.