Signal Processing TRIZ Cases

Wireless earpieces automatically adjust speaker output and microphone sensitivity using integrated environmental microphones.

A hearing aid system processes audio signals to simulate stereophonic hearing through a single ear.

Audio devices dynamically modify specific frequency bands based on detected signals to minimize unwanted sound transmission into adjacent rooms.

Audio playing method decomposes signals into categorized source streams and routes sub-signals to specific speaker modules for immersive playback.

Dual-function loudspeakers adjust output to match reference signals, eliminating separate microphones and reducing system cost.

Speech boost circuitry increases audio volume using neural network noise reduction in ear-worn devices.

Switches audio signals to analog paths when temperature exceeds digital processor limits, maintaining mission critical communication.

A hearing aid device splits the frequency range into bands and merges signal components from non-selected groups into a selected band for amplification.

Spaced microphones feed a separation process that isolates speech from background noise, resolving the trade-off between processing speed and adaptability.

Energy detectors toggle acoustic echo cancellation off when near-end speech appears, eliminating distortion caused by continuous processing.

A piezoelectric speaker design uses segmented deformable plate elements to excite multiple natural vibrational modes across a rigid planar surface.

A processing component calibrates speakers by comparing original audio signals with microphone feedback to optimize playback.

A hearing apparatus selects between stationary and spatial noise reduction methods to attenuate interference.

Segmenting the voice processing pipeline allows applying dereverberation gains after residual echo suppression, preventing excessive local speech attenuation.

Correction unit compensates for rotation and blurring in moving microphone arrays by adjusting spherical harmonics coefficients based on directional data.

Processor monitors ear canal pressure and volume settings to adjust output, preventing hearing damage from excessive amplification.

A signal processing device adjusts directivity using delay and suppressing operations on audio signals from multiple microphones.

A switchable sound plate repositions between stand and hang modes to direct audio emission through side slits or front openings.

Ultrasound signaling coordinates transmitter and receiver audio devices to boost volume without increasing mobile power consumption.

A Bluetooth earhook microphone apparatus processes audio signals offline to trigger haptic feedback notifications.

Evaluating acoustic cross-talk components enables automatic gain equalization, resolving fabrication tolerance mismatches in multi-microphone vehicle systems.

Dynamic amplifier assignment resolves configuration flexibility trade-offs by activating units only when audio playback is required.

A voice processing system configures speaker output settings across multiple devices to manage audio distribution in shared spaces.

Hearing aid software processes external sound signals through noise suppression and dynamic range compression to replace expensive dedicated chips.

Spatial normalization unit maps microphone array orientation components to a standard direction, reducing spatial complexity in machine learning models.

Dynamic gain adjustment compensates for manufacturing sensitivity mismatches in microphone arrays, improving sound source localization precision.

Acoustic coupling amount calculation unit adjusts update amounts by near-end speaker magnitude to eliminate musical noise without double talk detectors.

Dual microphones in a smart pen use beam steering and noise cancellation to resolve handwriting interference and improve source differentiation.

A three-way audio system uses directional arrays and passive devices to radiate midrange and high frequencies laterally.

A noise reduction system uses a detector block to identify noise components and a masking block to generate a spectral removal mask for signal processing.

A mixed domain blind source separation method vectorizes time-frequency distributions into a unified matrix for simultaneous signal processing.

Wearable close-proximity transducers generate synchronized crosstalk cancellation signals to create localized audio zones.

Power amplifier volume adjusts based on broadcast modulation index to maintain preset sound levels.

Audio earbuds identify users by emitting broadband sound through the head and capturing the filtered signal at the opposite microphone.

A multi-core microphone generates directional sound beams to capture voice signals from any passenger position inside a vehicle cabin.

A binaural beamformer produces directional output signals using interaural time and level differences.

Recurrent neural networks learn nonlinear speaker distortions to restore audio fidelity.

A hearing device detects client volume control type to adjust output signals.

A voice picker identifies participants in the same room using watermarks and adjusts microphone volumes to prioritize the main speaker.

Dynamic spatial filters map microphone signals to head-related transfer functions for real-time binaural audio rendering.

Generalized EigenVector beamformer optimizes weights for multiple target positions in hearing devices.

Encoding stereo signals into mid and side channels reduces computational workload while maintaining sound integrity.

Segmenting sound into periodic and aperiodic streams resolves the trade-off between frequency resolution and temporal smearing in hearing aids.

Grouping adjacent frequency bands and selecting the highest energy band per group prevents overlap in hearing aid channel assignment.

Computer vision analyzes camera input to detect speaking states and prompt users to unmute microphones, preventing data loss during video conferences.

Subtracting left and right earphone motion sensor outputs removes user infrared interference, enabling accurate third-party approach detection.

An earphone control device detects external environment sounds to alert users of potential hazards through specific prompt tones.

A 3D LiDAR earphone system acquires biometric ear data to identify the owner and control device states.