Dual-Processing Sound Playback Device for Noise Reduction
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Solution Overview
Problem
Existing sound playback devices face challenges in effectively reducing noise due to limitations in conventional denoising algorithms and artificial intelligence denoising processes, which require extensive data and may fail to recognize certain noise categories accurately.
Innovation Solution
A sound playback device that combines a first processing module for artificial intelligence denoising and a second processing module for noise analysis using conventional algorithms, such as spectral subtraction or Wiener Filter, to perform two denoising procedures simultaneously, enhancing noise reduction performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If artificial intelligence denoising process is used, then self-learning capability is improved, but recognition performance for certain noise categories deteriorates due to lack of mass data
Solution Approach 1:
The patent combines AI-based denoising processing with conventional denoising algorithms (spectral subtraction, Wiener filter) into a dual-processing system. The AI processing module handles general noise patterns through self-learning, while the conventional processing module addresses specific noise categories through mathematical filtering techniques, thereby compensating for the AI module's weakness in recognizing certain noise types when mass data is unavailable.
2Productivity
If conventional denoising algorithm is used, then computational efficiency is improved, but denoising effectiveness deteriorates compared to AI methods
Solution Approach 1:
The system merges conventional denoising algorithms (which offer computational efficiency through established mathematical methods like spectral subtraction and Wiener filtering) with AI-based processing (which provides superior denoising effectiveness through adaptive learning). This combination allows the system to leverage the speed advantages of conventional methods while achieving the high effectiveness of AI approaches.
3Device complexity
If single denoising processing procedure is used, then device complexity is reduced, but noise reduction performance deteriorates
Solution Approach 1:
The patent implements a dual-processing structure where AI-based denoising and conventional denoising algorithms operate in parallel. The sound signal is processed through both pathways simultaneously, and the results are combined to achieve superior noise reduction performance. This multi-processing approach overcomes the limitations of single-method systems while maintaining manageable device complexity through modular architecture.
Data Source
AI summary
A sound playback device and a noise reducing method thereof are disclosed. The method comprises the steps of: receiving an input sound signal, wherein the input sound signal includes a noise; performing a first denoising processing procedure to the input sound signal to obtain a first processing sound signal; performing a noise analysis procedure to the input sound signal to generate an analysis result; performing a second denoising processing procedure to the first processing sound signal to obtain a second processing sound signal according to the analysis result so as to reduce the noise; and outputting the second processing sound signal.