Media File Equalizer Mapping for Cross-Device Playback
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Solution Overview
Problem
Conventional methods require users to manually set and reset equalizer settings for each media file and device, leading to inconvenience when switching between different music genres or devices, and do not allow for the sharing of optimized equalizer settings across different audio reproduction apparatuses.
Innovation Solution
A method where a 'sound field effect file' stores optimized equalizer settings for each media file, allowing these settings to be applied across different devices and enabling users to share and apply settings from others through a network system, using mapping information to locate and apply the correct equalizer settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If equalizer settings are manually adjusted for each media file and device, then the equalizer can be optimized for specific music genres, but the user must repeatedly set and reset equalizer settings when switching between genres or devices, causing inconvenience
Solution Approach 1:
The patent applies preliminary action by pre-storing optimized equalizer settings in the media file itself (in metadata tags or associated databases) before reproduction. When a media file is played, the reproducing apparatus automatically retrieves and applies the pre-stored equalizer settings without requiring manual user adjustment, thus resolving the contradiction between optimization precision and operational convenience.
2Adaptability or versatility
If equalizer settings are device-specific, then each device can be customized, but the settings cannot be transferred to other devices, requiring users to reset equalizer settings on each new device
Solution Approach 1:
The patent implements copying by embedding the equalizer setting information directly into the media file or its associated metadata. This allows the same optimized equalizer settings to be copied and transferred across multiple reproducing devices whenever the media file is transferred, eliminating the need to manually reset settings on each new device while maintaining device-specific adaptability.
3Ease of manufacture
If equalizer settings are stored separately from media files, then settings can be managed independently, but there is no way to automatically apply the correct settings to the corresponding media files
Solution Approach 1:
The patent merges the equalizer setting information with the media file by storing it in the file's metadata tags or in an associated database that links settings to specific media files through unique identifiers. This combination enables automatic retrieval and application of the correct equalizer settings when the corresponding media file is reproduced, while still allowing independent management of settings for different files.
Data Source
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AI summary
A method of recording mapping information in a media file comprises extracting an equalizer setting. The method comprises generating a sound field effect file for setting an equalizer for reproducing the media file, using the extracted equalizer setting. The method comprises recording mapping information about the sound field effect file in a predetermined position of the media file, said the mapping information comprising information representing a storing position of the sound field effect file. The equalizer setting that is being applied to reproduce the media file or another media file may be extracted while the media file or another media file is being reproduced.