Sound and Vibration Reproduction With Separate Tactile Control
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Solution Overview
Problem
Existing audio reproduction systems fail to effectively control tactile frequencies to enhance the listening experience while avoiding discomfort due to excessive vibration.
Innovation Solution
A signal processing assembly that separately controls amplification in tactile and audible frequency bands, using a mapping function to balance sound pressure levels and vibration intensity based on user input and signal content, ensuring comfortable and immersive audio reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If tactile frequencies are amplified to enhance the listening experience, then the immersive quality improves, but discomfort due to excessive vibration occurs
Solution Approach 1:
The patent segments the audio frequency spectrum into distinct tactile frequency band (below 20 Hz) and audible frequency band (above 20 Hz), applying separate amplification control to each band. This allows independent optimization of vibration intensity for immersive experience while controlling audible intensity to avoid discomfort.
Solution Approach 2:
The patent dynamically adjusts amplification parameters based on the input signal characteristics and user preferences. The control portion modifies the amplification factor for tactile frequencies in real-time, changing the parameter to balance immersive quality against comfort thresholds.
2Manufacturing precision
If separate control of tactile and audible frequency amplification is implemented, then balanced reproduction is achieved, but system complexity increases
Solution Approach 1:
The control portion serves multiple functions: it separates frequency bands, determines appropriate amplification levels for each band based on signal characteristics, and applies the amplification controls. This multi-functionality reduces the need for separate dedicated components for each processing step.
Solution Approach 2:
The system automatically analyzes the input signal and self-adjusts the amplification parameters for tactile and audible bands without requiring manual intervention or complex external control systems. The control portion autonomously determines the optimal balance based on signal content.
Data Source
AI summary
A signal processing assembly is provided, the signal processing assembly comprising: a signal processing portion for deriving an output signal based on an input signal; and a control portion for controlling derivation of the output signal in the signal processing portion for rendering by a sound and vibration reproduction apparatus. The control portion is arranged to separately control respective amplifications for derivation of the output signal in a first frequency band and in a second frequency band, where the first frequency band represents tactile frequencies and the second frequency band represents audible frequencies, the signal control portion arranged to at least one of the following: determine a first amplification for the first frequency band in dependence of a user-selected second amplification for the second frequency band determine the first amplification for the first frequency band in dependence of a signal content type represented by the input signal.