Aircraft Audio Equalizer Configuration via Device Identification
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Solution Overview
Problem
Inexpensive earphones used in aircraft lack individual information for identification, making it difficult to reproduce music with appropriate characteristics.
Innovation Solution
An equalizer setting information system that includes a storage medium interface, a device identifying section, and an equalizer setting section to read and apply appropriate equalizer settings to audio reproduction devices based on acquired information, ensuring optimal sound quality for each earphone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If individual information is stored in earphones for identification, then audio reproduction characteristics can be optimized for each earphone, but the cost of earphones increases
Solution Approach 1:
The patent applies the copying principle by creating a database that stores equalizer setting information copied from actual measurements of earphone characteristics. Instead of embedding individual information in each earphone, the system creates a digital copy of the equalizer settings that corresponds to each earphone model, allowing the audio reproduction device to apply the appropriate settings by matching the earphone model number from the packaging or manual.
2Adaptability or versatility
If equalizer setting information is stored in association with audio reproduction device identification, then appropriate settings can be applied to each device, but the system complexity increases
Solution Approach 1:
The patent applies the self-service principle by enabling the audio reproduction device to automatically identify itself and retrieve the corresponding equalizer setting information from the database without requiring manual configuration or complex matching processes. The device uses its own identification information to query the database and apply the appropriate settings autonomously.
Solution Approach 2:
The patent applies the preliminary action principle by pre-storing equalizer setting information in the database associated with each audio reproduction device's identification information before actual use. This allows the system to quickly retrieve and apply appropriate settings without performing complex real-time analysis or measurements.
3Productivity
If equalizer setting information is pre-stored in association with device identification, then appropriate settings can be quickly applied, but the amount of data to be managed increases
Solution Approach 1:
The patent applies the local quality principle by organizing the database to store equalizer setting information specifically tailored to each audio reproduction device model and earphone type combination. Rather than storing universal or overly general settings, the database contains localized, device-specific information that is precisely matched to the identification information of each device, ensuring optimal performance while managing data efficiently.
Data Source
AI summary
To provide a high quality listening experience for passengers using inexpensive earphones distributed in an aircraft, equalizer setting according to the characteristics of earphones is necessary. Earphones used in the aircraft are variable according to an aircraft company, and audio reproduction devices used with the earphones are variable according to an aircraft company or a flight number, therefore, it is necessary to prepare a plural of equalizer settings and to select and apply a proper equalizer setting according to a combination of earphones and audio reproduction devices.An equalizer setting information setting system (200) for an aircraft entertainment system includes a storage medium interface (105) that reads data from a recording medium (211) that stores a plurality of data, in which first information (212) including information about equalizer setting and second information (213) for identifying an audio reproduction device, to which the information about equalizer setting is applied, are associated with each other; a device identifying section (221) that acquires third information for identifying an audio reproduction device that a passenger uses; an equalizer information reading section (222) that reads from the storage medium the first information associated with the second information corresponding to the third information; and an equalizer setting section (223) that changes sound gain of the audio reproduction device using the information read by the equalizer information reading section, so as to set an equalizer of the audio reproduction device.