Dual-Speaker Audio Output Using Low- and High-Pass Frequency Splitting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing audio processing technologies face limitations in enhancing low-band performance of audio data, particularly when outputting audio signals through speakers, as they struggle to effectively separate and enhance frequency bands.
Innovation Solution
An electronic device is equipped with a processor that uses a low pass filter to create a first frequency audio signal, synthesizes it with the original audio signal, and then employs a high pass filter to create a second frequency audio signal, outputting these through separate speakers to improve audio data output by separating frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If audio data is input into two channels and output to corresponding speakers, then the audio signal can be output through multiple speakers, but the low-band performance of the audio data cannot be effectively enhanced
Solution Approach 1:
The patent segments the audio signal into different frequency bands using filter banks, specifically separating low-band signals from high-band signals. This allows independent processing of low-band components through synthesis from multiple channels, thereby enhancing low-band performance without proportionally increasing overall system complexity
Solution Approach 2:
The patent merges low-band signals from multiple audio channels through synthesis processing. By combining the low-band components from different channels and reconstructing them, the system achieves enhanced low-band performance while maintaining manageable processing complexity through efficient merging algorithms
2Reliability
If frequency bands are separated using filters and output through different speakers, then the low-band performance is improved, but the device complexity increases
Solution Approach 1:
The patent divides the audio frequency spectrum into distinct bands using filter banks, with specific filters assigned to separate low-band and high-band signals. This segmentation enables targeted enhancement of low-band performance through dedicated processing paths while keeping the overall system architecture organized and manageable
Solution Approach 2:
The patent designs the filter bank and speaker configuration system to serve multiple functions: frequency separation, low-band enhancement, and multi-channel audio output. By making the system multi-functional, the patent reduces the need for separate dedicated components for each function, thereby improving audio output quality without proportionally increasing device complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the overall performance of audio data output by effectively separating and amplifying specific frequency bands, thereby improving the fidelity and quality of the audio signal.
Implementation Method 1
creates, from an audio signal, a first frequency audio signal corresponding to a first frequency band by using a low pass filter
Implementation Method 2
creates, from the synthetic audio signal, a second frequency audio signal corresponding to a second frequency band by using a high pass filter
Data Source
AI summary
A method and an electronic device for outputting an audio signal in the electronic device is provided. The electronic device includes a first speaker, a second speaker, and an audio processor that creates, from an audio signal, a first frequency audio signal corresponding to a first frequency band by using a low pass filter, synthesizes the created first frequency audio signal and the audio signal to create a synthetic audio signal, creates, from the synthetic audio signal, a second frequency audio signal corresponding to a second frequency band by using a high pass filter, outputs the created second frequency audio signal through the first speaker, and outputs the created synthetic audio signal through the second speaker.