Signal Processing TRIZ Cases

A binaural hearing system estimates sound source direction using pre-measured relative transfer functions and maximum likelihood methodology.

Contextual audio system pauses playback via GPS sensors to prevent user distraction in hazardous environments.

Computing devices synchronize tactile bass response with audio signals to conserve battery life by offloading low-frequency generation.

A hearing aid beamformer generates directional and omni-directional audio signals for user-controlled mixing.

Dynamic audio processing adapts gain and delay parameters to speaker position, resolving sound image localization errors caused by mobile speakers.

A hearing device manages adaptive feedback cancellation using a probe signal to model the acoustic path.

An audio controller applies filters to sensor pairs to match user ear interaural cues, resolving device complexity constraints.

A sound estimation device extracts spatial correlation filters from acoustic signals to determine source direction.

Multiple microphone units feed a reverberation removal unit that applies MVDR beamformers and generalized sidelobe cancellers to reduce noise.

Selective attenuation of rattle-causing frequencies reduces mechanical resonance distortion while preserving overall audio fidelity.

Coordinator device synchronizes audio playback across multiple devices, resolving disjointed interactions and noise disturbance in public spaces.

Visible light communication replaces costly wireless chips and harmful electromagnetic radiation in audio playback systems.

Separates multi-channel audio into center and residual signals to apply time-varying gains, preventing clipping while preserving spatial panning relationships.

A mixer module combines ASIO and WDM audio signals using separate processors and buffer memories to enable parallel data exchange.

A beamforming apparatus uses an adaptive filter to minimize difference signals between audio inputs.

The system identifies speech from noise in high-noise environments by leveraging the determinant of a Gram matrix to overcome phase data unreliability.

A bone conduction output unit transmits separated frequency bands to stimulate the vestibular organ in virtual reality environments.

A hearing aid receiver measures its magnetic field to characterize response behavior, detecting installation changes that alter sound output.

A user device measures speaker latency using a microphone and adjusts playback timing to synchronize audio signals.

A holographic projector generates a virtual image of the microphone polar pattern to show sound capture range.

Infrared depth sensors feed a lenticular display to render three-dimensional video, eliminating the need for head-mounted displays in telepresence.

Frequency band segmentation resolves the contradiction between increasing audio content quantity and maintaining signal distinguishability.

An information provision system identifies distribution data linked to terminal position and transmits it via electronic signals.

A sound input-output control apparatus switches between stereo and monaural modes based on device proximity.

A processor determines sound localization parameters based on listener positions to optimize audio output.

Phase difference maps enable accurate honk source localization, reducing collision risks from undetected acoustic signals.

Maximizes simultaneous probability of sound source and recorded signal spectrums to resolve position estimation accuracy in noisy environments.

A binaural hearing aid system evaluates signal components from a preferred direction to adjust directional characteristics dynamically.

Dual input transducers capture sound from the ear canal and behind the pinna to generate directional output signals.

Remote unit analyzes ambient sound to control earphones, reducing power consumption by performing signal processing remotely.

Dynamic audio signal generation captures real-time UI frames and audio streams to produce context-aware feedback during interface traversal.

Detection circuitry measures speaker impedance using real-time audio signals to identify operational abnormalities without dedicated test tones.

Proximity sensors dynamically reduce stereo speaker volume when the device nears the ear, preventing hearing impairment from high audio levels.

Array processing steers beams toward the user's mouth, isolating voice signals while reducing computational energy required for filtering.

A hearing normalization system uses shaped noise measurements to dynamically adjust gain across multiple frequency bands.

Auditory attention tracking system modifies external sounds to elicit specific neural responses for accurate user focus detection.

Calibration system guides microphone placement to measure sound pressure levels and adjust speaker attenuation data.

An adaptive noise suppressor adjusts processing levels based on detected audio context to preserve signal integrity.

A speaker generates a reverse cancelling sound wave to shape acoustic output directionality.

A binaural audio rendering filter segments signals into frequency portions to pan high frequencies for spatial positioning.

A sound processing apparatus compensates volume differences between pre-fader and post-fader signals using a controller and second adjuster.

A sound source direction estimation device calculates inter-microphone phase differences and single sound source masks for each frequency band.

Audio processor circuit measures feedback path transfer functions to detect ear canal anomalies.

A coordinator device generates proximate audio intent objects to synchronize signal output across nearby electronic devices.

Audio output system measures input signal levels to cap maximum audio during warning tones, preventing sudden loud jumps that startle the driver.

A full duplex transceiver assembly assigns logical channels via embedded data streams to enable multi-device communication.

A reduced reference cancellation system separates early reflections from late reverberations to lower computational complexity.

Ultrasonic motion detection dynamically gates the microphone to eliminate background noise when users move outside the range of interest.

Audio analysis identifies door knocks to trigger monitoring actions, reducing false alarms from motion sensors detecting vehicles or animals.

A vibration conducting unit transmits mechanical energy from an internal oscillator to headphone units through the arm portion structure.