Audio Compression Control Across Frequency Bands With One Parameter
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Solution Overview
Problem
Existing audio signal modification processes for hearing aid devices are complex due to numerous adjustable parameters, overwhelming both users and experts, making it difficult to achieve optimal adjustments.
Innovation Solution
A process and device that utilize a single control parameter to adjust compression across all frequency bands, with Input-Output functions determining the compression values, simplifying the modification process and allowing laymen to make adjustments without technical knowledge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple compression parameters are used for different frequency bands, then the compression control precision is improved, but the device complexity increases
Solution Approach 1:
A single control parameter is designed to universally control compression across all frequency bands simultaneously. This control parameter acts as a master variable that influences multiple compression parameters (compression ratio, threshold, attack time, release time) across multiple frequency bands through a unified control mechanism, reducing the number of independent controls while maintaining comprehensive compression control capability
Solution Approach 2:
Multiple independent compression parameters for different frequency bands are merged into a single control parameter. Instead of having separate controls for each frequency band's compression ratio, threshold, attack, and release times, these are combined into one unified control that adjusts all parameters simultaneously through predefined relationships or algorithms
2Manufacturing precision
If multiple compression parameters are adjusted independently, then the manufacturing precision is improved, but the ease of operation deteriorates
Solution Approach 1:
The single control parameter serves as a universal control that performs multiple functions: it simultaneously adjusts compression ratio, threshold, attack time, and release time across all frequency bands. This multi-functional control eliminates the need for users to understand and adjust multiple technical parameters independently, making the device operable by laymen while maintaining precise compression control through the unified parameter's comprehensive influence
3Ease of operation
If a single control parameter is used for all frequency bands, then the ease of operation is improved, but the adaptability deteriorates
Solution Approach 1:
While using a single control parameter for overall compression control, the system applies different compression characteristics to different frequency bands through predefined relationships or algorithms. Each frequency band can have its own compression ratio, threshold, attack time, and release time that are derived from the single control parameter, allowing localized optimization for specific frequency ranges while maintaining simple user interaction through one control
Data Source
AI summary
Various aspects of the present disclosure are directed to a process for modifying an audio signal. For example, one process for modifying an audio signal is disclosed including the following steps: determining a compression parameter of the audio signal that should be modified; fractionizing the audio signal into different frequency bands; obtaining the values of the compression parameter for each frequency band; and compressing at least a part of the frequency bands as a function of the determined compression parameter. Various other embodiments of the present disclosure are directed to a device for modifying an audio signal. In one embodiment, a device is disclosed including at least one fractionizing unit for fractionizing an incoming audio signal into different frequency bands, a plurality of compression units for compression of at least a part of the frequency bands depending on a determined compression parameter and a control unit for determining the values of a compression parameter and using a single control parameter as input value.