Signal Processing TRIZ Cases

Dual control sections and separate signal paths let multiple users run one audio mixer without parameter conflicts or accidental setting changes.

Delay compensation aligns bone and air conduction wave generation within 100 microseconds to prevent perceived sound position bias.

Multiple microphones identify the loudest source and de-emphasize off-axis sounds while preserving timbre for audio within the region of interest.

Offline dose logging in wireless headphones preserves accurate hearing exposure records and syncs them later for continuous NIHL protection.

GPS-triggered preset switching lets auditory devices reuse location-specific sound settings and reduce manual adjustment when users move.

Temporal amplitude-difference tracking builds confidence-guided mid-channel blending to suppress stereo spatial jumps and stabilize listening.

Phase features from multiple microphones feed a neural classifier to estimate sound arrival angles more accurately for adaptive hearing processing.

Low-frequency signal suppression protects thin high-frequency speakers from sound breakage while keeping the ear canal open.

Microphone-based zone detection identifies interfering playback sources and adjusts audio characteristics to reduce cross-zone conflicts.

Low-frequency attenuation shields thin high-frequency speaker diaphragms from sound breakage while keeping the ear canal open to external sound.

Frequency-domain phase features from multiple microphones let a neural network estimate sound arrival angles for clearer speech in noise.

Dynamic speaker activation balances spatial playback, speaker placement, and microphone performance in smart audio environments.

Per-frequency direction and energy estimates let microphone arrays separate simultaneous sources, improve audio zooming, and reduce filter leakage.

Short-range wireless links let multiple vehicles act as synchronized speakers, with automatic role assignment and position-based sound staging.

Multi-microphone beamforming adds in-beam gain control to suppress out-of-beam noise and reflections while preserving call intelligibility.

Merge metrics use onset and energy cues to combine spatial audio parameters across bands, reducing metadata bitrate without harming quality.

Tripolar headrest transducers use DSP delays and directed radiation to improve occupant soundfield cues and integrate navigation audio.

Bandpass filtering and frequency shifting bring upper bass into a tactile speaker's usable range for more immersive vibration feedback.

Pre-measured transfer functions and pseudo inverse filters correct open-ear speaker sound paths without auricle microphones, improving elevation cues.