Loudspeaker Signals Distribution TRIZ Cases

Separating microphone array elements across small substrates and bus-linked cables cuts size, improves placement freedom, and reduces EMI.

All-pass filtering on the low-frequency path and pure delay on the high-frequency path align crossover timing with low real-time latency.

A high-Q filter lets an identical woofer cover 200-2000 Hz, removing the dedicated mid-range driver and simplifying crossover design.

FIR allpass weighting helps transducer arrays keep off-axis frequency response more uniform without sacrificing acoustic gain.

A switchable low-pass and amplifier path lets one speaker work in full-range or subwoofer mode, cutting extra hardware and power use.

A shunting network gradually mutes one in-plane driver and boosts the other to prevent acoustic interference across the speaker's range.

By tuning crossover frequencies and filter responses to driver spacing, this case smooths off-axis loudspeaker output and reduces interference.

A DSP and microphone measure room modes and adjust EQ, delay, and phase to flatten subwoofer bass response in home rooms.

Partial downmixing and playback tuning let multichannel satellite speakers preserve immersive home theatre audio on limited wireless bandwidth.

Psychoacoustic directional bands improve 3D sound localization while reducing loudspeaker complexity and DSP load.

In-phase and out-of-phase dual speakers shape interference patterns to limit sound leakage while preserving clear listening and ambient awareness.

Image-based listener detection lets audio mixing follow user positions and bearing angle changes for more accurate spatial sound.

Separating master and zone-specific audio signals enables aligned multi-zone playback with lower crosstalk, better sound consistency, and less processing cost.

Dual speakers and tuned front and rear chambers cut 3-6 kHz sound leakage while keeping an open-ear fit and clear audio.

Transforms left and right channels into sum-difference signals so multi-speaker playback reduces interference artifacts and improves psychoacoustics.

Ultrasound timing feedback lets a master device measure slave playback delay and align conference audio across multiple devices.

Opposite-phase speaker and receiver output cancels housing vibration and cavity noise without extra components, lowering cost and stack complexity.

Phase-opposed speaker radiation confines audio to the seated user while canceling sound farther away, avoiding headphones and limiting disturbance.

Converting left and right channels into sum and difference signals cuts correlation, reducing playback interference and improving psychoacoustics.

Acoustic response detection identifies each loudspeaker’s frequency range and location, enabling automated grouping and safer in-situ sound tuning.

Near-field speakers, position sensors, and a controller preserve spatialization as users move while limiting audio leakage to adjacent listeners.

A center driver and ring radiator use synchronized diaphragms and multiple voice coils to expand radiating area while reducing distortion.

Digital filters calculate seat-specific acoustic responses and reconstruct the cabin sound field to balance energy between passenger ears.

The approach replaces a fixed listening position with dynamic audio distribution for multiple users, without manual calibration.

Field-of-view information modifies spatial metadata so perceived audio sources track objects shown on a display.

A shared display substrate and vibrating membrane reduce sound-unit space while maintaining sound generation quality.

Phase manipulation makes integrated speaker drivers reinforce sound for the user while destructive interference limits leakage to eavesdroppers.

This case integrates the display substrate and vibrating membrane, using exciters and segmented regions for flexible sound reproduction.

This case uses dual sound modules with opposite phases to limit housing vibration and noise in low-strength electronic-device housings.

A coaxial speaker device couples tweeter and woofer units using a holder with a P-type magnet structure to enable easy wire extraction.

A sound system uses phase-canceling speaker pairs to reproduce audio in a narrow zone without headphones.

A controller measures delay periods between wireless speakers and a listener microphone to adjust output timings.

Measure loudspeaker impulse responses to tune gain and delay parameters, minimizing spatial variability in bass reproduction.

Electronic device detects sound intensity to automatically match target sound channels with wireless speakers, eliminating manual name comparison.

A loudspeaker apparatus uses a single membrane element driven by both voice coil and piezoelectric layer to generate sound waves across wide frequency ranges.

Time-varying phase differences between distinct audio emitters limit spatial interference fluctuations in vehicle simulators.

A MIMO system uses MELMS algorithms to generate individual sound zones with reduced pre-ringing.

An audio system automatically determines speaker delays from trigger sound arrival times, eliminating manual measurement errors and improving spatial accuracy.

A position stream session negotiation mechanism dynamically adjusts data characteristics between spatial audio applications and positioning systems.

Replacing digital circuitry with a passive ladder network, this design achieves consistent beam width and sound distribution without increasing system cost.

A phase alignment method determines delay values from impulse response start times to adjust audio signal phases across multiple drivers.

A directional speaker system segments audio signals to balance treble and bass output volumes based on user distance.

A feeder and return cable loop connects multiple audio speakers to deliver balanced power and optimize frequency response across the array.

Geometric speaker arrangement achieves omnidirectional sound emission while reducing power consumption by eliminating digital signal processing circuits.

A mobile device controller transmits audio signals to external speakers via an access point network.

Pre-calculated correction filters compensate for channel delay and gain variations, improving beam pattern accuracy without real-time computational complexity.

A media playback system adjusts subwoofer delay and polarity to compensate for spatial variations in audio signals.

An audio apparatus generates test tone signals to determine speaker locations and map multichannel outputs automatically.

A virtual audio signal generation method calculates wet-signal distributions based on source position to produce distance-dependent reverb.

Adaptive filtering adjusts transfer functions to optimize sound reproduction quality.

A sound field support apparatus generates audio signals based on position and localization data to adjust sound image placement.