2D Graphical Interface for Sound Personalization Algorithm Fitting
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Solution Overview
Problem
Conventional sound processing algorithms fail to account for subjective hearing preferences, making it cumbersome for users to navigate and fine-tune digital signal processing parameters, particularly in multiband dynamic processors, which can lead to suboptimal audio enhancement.
Innovation Solution
A two-dimensional (2D) graphical user interface is introduced to perceptually disentangle and independently adjust compression and coloration parameters, allowing users to subjectively fit sound processing algorithms by navigating interlinked parameters on the x- and y-axes, enabling real-time dynamic adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If automatic DSP parameter calculation is used based on hearing tests, then objective hearing improvement is achieved, but subjective user preference control is lost
Solution Approach 1:
The patent segments the parameter adjustment process into two distinct parts: automatic objective fitting based on hearing tests, and manual subjective fine-tuning through the 2D interface. This allows users to first benefit from algorithmic precision and then independently adjust parameters according to personal preference without being overwhelmed by the complexity of individual parameter control.
Solution Approach 2:
The 2D graphical interface acts as an intermediary between the user and the complex DSP parameters. Instead of directly exposing numerous individual parameters (ratio, threshold, gain for every subband), the interface provides a simplified visual representation that mediates the interaction, allowing users to indirectly control multiple parameters simultaneously through intuitive visual adjustments.
2Adaptability or versatility
If comprehensive DSP parameters are provided for full control, then customization capability is improved, but interface complexity increases
Solution Approach 1:
The patent merges control over multiple independent DSP parameters (compression ratio, threshold, gain across multiple subbands) into a single unified 2D graphical interface. This consolidation allows users to simultaneously adjust what would otherwise require controlling numerous separate parameters, reducing interface complexity while maintaining comprehensive customization capability.
Solution Approach 2:
The patent introduces a two-dimensional graphical interface that adds a visual spatial dimension to parameter control. Instead of navigating through multiple menus and individual parameter fields, users can visually locate and adjust parameters on a 2D plane, making the complex parameter space more navigable and intuitive.
3Manufacturing precision
If individual DSP parameters are adjusted separately, then precise control is achieved, but navigation difficulty increases
Solution Approach 1:
The patent segments the parameter space into visually distinct regions on the 2D interface, allowing users to focus on specific parameter groups (e.g., compression vs. coloration) without being overwhelmed by the complete parameter set. This segmentation enables precise control within each region while simplifying overall navigation through the interface.
Data Source
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AI summary
Disclosed are systems and methods for fitting a sound personalization algorithm using a two-dimensional (2D) graphical fitting interface. A calculated set of initial digital signal processing (DSP) parameters are determined for a given sound personalization algorithm, based on a user hearing profile. The initial DSP parameters are outputted to a 2D graphical fitting interface of an audio personalization application, wherein a first axis represents a level of coloration and a second axis represents a level of compression. A user input specifies a first 2D coordinate selected from a coordinate space presented by the 2D graphical fitting interface. A first set of refined DSP parameters is generated to apply a coloration and/or compression adjustment corresponding to the first 2D coordinate. The given sound personalization algorithm is parameterized with the first set of refined DSP parameters.