Wireless Earphone Audio Crossover With Independent Codec Equalization
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Solution Overview
Problem
Existing wireless earphones with multiple speakers are limited in their ability to configure equalizer frequencies, restricting their capacity to improve sound quality due to reliance on a single codec for audio processing.
Innovation Solution
The first electronic device determines crossover frequencies between multiple codecs and speakers, allowing for separate frequency band assignment and equalizer frequency configuration for each speaker, enhancing sound output quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single codec is used for audio processing in wireless earphones, then device complexity is reduced, but sound quality improvement capability is restricted
Solution Approach 1:
The patent divides the audio processing system into multiple independent codecs (first codec and second codec), each responsible for processing different frequency bands. This segmentation allows independent equalizer frequency configuration for each codec, resolving the contradiction by enabling enhanced sound quality capability while maintaining manageable system complexity through modular architecture.
2Adaptability or versatility
If multiple speakers are used in wireless earphones, then sound output quality can be improved, but the limitation of single codec restricts equalizer frequency configuration
Solution Approach 1:
The patent assigns different frequency bands to different speakers through separate codecs - the first codec processes a first frequency band for the first speaker, while the second codec processes a second frequency band for the second speaker. This local quality approach enables optimized sound quality for each speaker's specific frequency range, resolving the contradiction between multiple speakers and equalizer configuration capability.
Data Source
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AI summary
A first electronic device according to an embodiment may be configured to: acquire, from a second electronic device, an audio signal and information indicating a crossover frequency between a frequency band corresponding to a first speaker and a frequency band corresponding to a second speaker; identify a first frequency band with respect to the first speaker and a second frequency band with respect to the second speaker, on the basis of the crossover frequency; provide an audio signal having been processed through a first codec to the first speaker; and provide an audio signal having been processed through a second codec to the second speaker so as to output sound with respect to the audio signal.