Signal Processing TRIZ Cases

Dynamic compressive amplification reduces noise amplification in low SNR environments while maintaining speech audibility through adaptive compression ratios.

A portable hearing screening device couples to headsets for rapid threshold testing and immediate amplification.

A beamformer steers microphone array beams toward sound sources within the camera field of view to isolate relevant audio signals.

An earplug acoustic device uses a signal processing unit to amplify and smooth audio frequencies for private listening.

A media output device analyzes audio content to dynamically adjust volume settings, reducing manual adjustments required by varying sound levels.

A host system adjusts far-field speaker audio using an inverted hearing transfer function to balance volume levels with near-field speakers.

Audio processor segments loudspeaker response into frequency bands, applying inverse non-linear models to compensate for distortion and improve sound quality.

A hearing prosthesis adjusts beamformer coefficients based on measured microphone array location.

Electronic device detects audio conditions and switches states to adjust output parameters, balancing volumes for multi-person video conferences.

Mobile device adjusts speaker volume and vibration intensity to ensure alert perception in noisy environments.

A local space-domain distance soft masker weights time-frequency bins to estimate acoustic source direction.

Modular segmentation separates the horn and microphone, preventing signal clipping while maintaining accurate synchronization.

Separate volume metadata in dual audio streams enables immediate headset adjustment, eliminating latency from buffer updates during playback transitions.

A dual-microphone array calculates phase differences to derive directional filter coefficients for spatial interference suppression.

A signal processor adjusts a side-tone filter to improve the signal-to-noise ratio of audio feedback.

An acoustic fence generator processes multi-channel audio inputs to isolate participant signals from external noise sources.

Stored inverse covariance matrix enables frequency domain beamformer to attenuate loudspeaker echo while preserving computational resources.

Multiple sound generators superimpose audio signals to create a virtual sound source at a preset position within an electronic device.

Mobile terminal processes three microphone signals to generate five channel audio outputs.

An acoustic waveguide structure focuses sound toward the user ear in wearable devices.

Audio signal processing establishes reference sound volume before sampling to resolve distance and microphone setting inaccuracies in virtual scene control.

Bilateral earpieces alter amplitude and reverberation to create a 3D sound field, resolving the trade-off between device complexity and detailed spatial audio.

A hearing aid microphone array processes audio signals to detect voice presence.

Frequency-dependent regularization parameter calculation shapes XTC filters for flat amplitude response at loudspeakers.

A correlation operation aligns audio patterns from multiple microphones to determine starting-time differences.

Directional speakers generate converging sound waves to restrict audio rendering within defined vehicle regions, eliminating cross-region interference.

A deep neural network ensemble predicts gain value ranges for hearing device fittings based on user profiles.

Frequency-dependent thresholds and high compression ratios limit output levels while preserving natural loudness perception of narrowband signals.

Porous member between vibration speaker and support reduces air resistance, resolving space constraints that degrade sound quality in compact displays.

A sensor hub uses orthogonal apertures to capture ambient light and sound data from multiple directions.

Azimuth compensation corrects speaker positioning errors caused by vehicle geometry and occupant blockages, restoring accurate timbre and spatial immersion.

A frequency-based beamforming system steers directional acoustic nulls across multiple signal sub-bands to attenuate unwanted noise.

Inertial sensor detects device motion to replace mechanical switches, eliminating moisture exposure and reducing power consumption.