Two-Channel Systems TRIZ Cases

Band-split bass processing with dynamic range control widens stereo sound while preserving soundstage fidelity and limiting noise.

A diffusion filter, delay, and distance-gain mixing recreate air and room cues so headphone audio sounds externalized and more spatially realistic.

Spatial resolution and response length are adjusted by head and sound-source position to cut 3D audio processing delay while preserving voice quality.

Retrieved HRTFs and a neural field model personalize spatial audio while reducing listener-specific HRTF measurement time.

Redistributing ITD delays toward the contralateral ear reduces ipsilateral comb filtering while preserving binaural timing cues.

Automatic stereo mastering compares channel balance and width metrics to reference targets, improving stereo imaging with less manual effort.

Machine-learning head rotation prediction lets spatial audio adjust amplitude and phase ahead of motion, cutting delay and improving 3D sound coherence.

Targeted amplitude tuning of contralateral HRTF frequency regions shifts perceived sound elevation while limiting distortion and processing load.

Model-based correction cleans misaligned HR filters and non-HR reflections to improve spatial continuity and binaural XR immersion.

Rear-directed audio is selectively intensified during mixing to improve behind-the-listener perception without degrading localization accuracy.

Compact basis-function sampling and metadata cut HR filter compute and memory load while preserving accurate real-time spatial audio.

HRTF, volume panning, and delay correction align stereo output to real speaker positions for accurate sound localization in non-concentric layouts.

Associating personalized HRTFs with equipment IDs enables flexible cross-app 3D audio use while preserving sound localization and realism.

Boundary sample ramps and zero-crossing trims align adjacent tracks, reducing audible artifacts in gapless playback.

Fixed screen-facing assumptions can degrade spatial audio when users turn their heads; direction-aware adjustment maintains soundstage balance.

Stereo headset audio lacks scene-specific orientation and space; this method separates direct and diffuse parts and applies stored room responses.

Fixed low-order filters with controllable delays and gains simulate multiple moving sound sources in real time without individualized HRTF databases.

Frequency-selective HRTF gains and phase shifts reduce comb filtering while preserving the virtual phantom center.

Structured basis-function sampling and shape metadata reduce storage and computation for accurate real-time head-related filters on mobile devices.

Channel-specific FIR filters improve spatial imaging in automotive audio.

This case uses listener HRTFs and wearable audio to place movie sounds around the viewer and match visual events.

Identifier-based HRTF storage lets applications select user-specific audio data for the equipment in use.

Segment BRIR regions to simulate room changes without new in-ear measurements.

Threshold-based channel balancing reduces extreme stereo differences for comfortable listening.

Generic HRTFs can mismatch listener geometry; calculated ITD values personalize binaural signals for immersive localization.

Camera-derived head geometry calculates personalized ITD values and modified HRTFs for consistent three-dimensional sound localization.

A two-channel audio system splits signals into middle and side components to dynamically modulate side gain for consistent stereo width.

A sound reproduction system uses two transducer arrangements on a sound cone of confusion to generate directional audio signals.

Depth processing system manipulates phase and amplitude of stereo signals to render audio along the listener's median plane.

A method interpolates head-related transfer functions using altitude and azimuth angle segments to generate accurate sound localization signals.

A binaural renderer adjusts head-related transfer functions based on sound source size and distance to generate accurate spatial audio.

A stereo expansion method uses binaural modeling to widen the sound stage while preserving audio quality.

A control filter calculates coefficients to approximate complex sound pressure ratios at target binaural positions for accurate spatial audio reproduction.

Electronic device adjusts head-related transfer function to shift sound reproduction position.

Separate phase-flip and frequency-dependent delay paths process audio signals to achieve zero average correlation without generating audible artifacts.

A surround sound virtualizer applies dynamic range compression to rear source inputs for accurate spatial audio reproduction.

Style transfer operation generates individualized head-related transfer function measurement pairs from reference data.

Mid-side stereo processing isolates side components to reduce coloration and sensitivity issues caused by ill-conditioning in crosstalk cancellation.

Segmenting audio frequencies into bone and air conduction paths bypasses the ear canal, eliminating hygiene risks while preserving ambient sound awareness.

Panning presets replace complex keyframe editing with modular parameter sets, creating dynamic multi-channel sound fields.

A method selects head-related transfer functions by correlating user morphological parameters with a perceptually classified multidimensional database.

A stereo audio rotation system separates and recombines two-channel signals to simulate directional sound sources based on listener orientation.

Segmenting audio signals into frequency bands allows independent regularization, reducing error sensitivity while maintaining wide sweet spots.

Preprocessing filters reduce correlation between two-channel audio signals, resolving front-rear confusion and improving rear sound image localization accuracy.

Groups real and imaginary signal parts into complex vectors to reduce FFT calculations from 320 to 34, resolving DSP computational load.

Media player adjusts playback volume based on cumulative sound pressure levels across specific frequency ranges to manage user exposure.

Phase adjustment filters reduce inter-loudspeaker differential phase across multiple listener positions using measured acoustic transfer functions.

Binaural filters simulate head-related transfer functions to externalize sound fields, resolving speech intelligibility trade-offs in noisy environments.

Virtual speaker apparatuses and filter coefficients correct angle deviation when listener position changes.

A head-related transfer function modification system generates filters by averaging spectral responses of surrounding HRTFs to reduce timbral changes.

Auxiliary device extracts impulse responses to compensate for delays and phase shifts, enabling aftermarket speaker upgrades.