Acoustic Parameter Filtering for Audio Tuning
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Solution Overview
Problem
Existing systems for downloading and setting acoustic characteristic parameters for audio apparatuses face low availability due to parameters being specific to particular acoustic environments, leading to suboptimal sound quality when mismatched.
Innovation Solution
An acoustic characteristics setting support system that includes a server with shared data containing parameter and environmental data, allowing an apparatus to select and apply parameters based on acoustic environment consistency patterns, ensuring effective parameter usage regardless of environment match.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If acoustic characteristic parameters are stored in a server for download and application to audio apparatuses, then users can access various acoustic characteristic parameters, but the availability of these parameters is low because they are specific to particular acoustic environments
Solution Approach 1:
The acoustic characteristic parameters are segmented into multiple items (equalizer parameters, TCR parameters, crossover parameters, etc.), allowing selective application of only those parameters that are effective for the specific acoustic environment of the audio apparatus, thereby improving availability while maintaining quantity
Solution Approach 2:
Different parameters are applied selectively based on local acoustic environment characteristics. The system identifies which specific parameters are effective for the given acoustic environment and applies only those, rather than uniformly applying all parameters, thus improving adaptability
2Ease of operation
If acoustic characteristic parameters created for a different acoustic environment are directly applied to an audio apparatus, then the system can use parameters from the server, but the output sound quality is not excellent
Solution Approach 1:
The system performs preliminary analysis of the acoustic environment characteristics before applying parameters. It evaluates the consistency between the stored acoustic environment data and the actual apparatus environment, and pre-selects effective parameters to ensure sound quality before final application
Solution Approach 2:
The system incorporates feedback mechanisms to evaluate the consistency between stored acoustic environment data and actual apparatus conditions. This feedback loop allows the system to adjust parameter selection based on environmental matching, ensuring both ease of operation and reliable sound quality
3Reliability
If only acoustic characteristic parameters created for a totally matching acoustic environment are applied to an audio apparatus, then sound quality is ensured, but the availability of parameters is limited
Solution Approach 1:
The system applies partial parameter sets rather than requiring complete parameter matches. It identifies and applies only the effective parameters that are relevant to the specific acoustic environment, allowing use of parameters from environments that are not totally matching, thus improving availability while maintaining sound quality through selective application
Data Source
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AI summary
An audio setting application (209) of a smart phone (2) acquires from a tuning data setting providing server tuning data that meets a search condition specified by a user. The audio setting application (209) performs filtering of tuning parameters included in the tuning data representing parameters of a plurality of acoustic characteristic items of an audio apparatus (1) in such a manner that a parameter for an acoustic characteristic item that cannot be expected to achieve an appropriate effect even when the parameter is applied to the audio apparatus (1) is excluded, in accordance with target acoustic environmental data representing an acoustic environment under which the tuning parameters are created and the acoustic environment of the audio apparatus (1). Then, the tuning parameters that have gone through filtering are set for the audio apparatus (1).