Audio Stream Discontinuity Correction for Smoother Voice Playback
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Solution Overview
Problem
Conventional audio reproduction devices experience noise issues due to discontinuous voice streams, leading to unpleasant listening experiences, especially when muting is applied to multiple pieces of sample data, and frequent discontinuous points exacerbate this problem.
Innovation Solution
An audio reproduction device is designed with a decoding processor, discontinuousness determination unit, reset processing unit, frequency analysis unit, envelope calculation unit, level difference calculation unit, and correction processing unit to assess and correct discontinuous data, applying appropriate correction processes to minimize noise and ensure smoother voice reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If muting control is performed on multiple pieces of sample data to prevent noise at discontinuous points, then noise generation is reduced, but voice reproduction quality deteriorates and stops occur
Solution Approach 1:
The patent applies different processing strategies to different types of discontinuous points based on local characteristics. By analyzing the specific nature of each discontinuity (network-induced vs. non-network-induced) and applying targeted correction processes, the system avoids uniform muting across all discontinuous points, thereby preventing voice quality deterioration while still suppressing noise where necessary.
Solution Approach 2:
The system changes the processing parameters dynamically based on the type of discontinuous point detected. Instead of applying fixed muting control, the patent adjusts correction parameters according to frequency analysis results and envelope characteristics, allowing optimal noise suppression without compromising voice reproduction quality.
2Reliability
If frequent discontinuous points occur in voice data, then packet loss increases, but applying muting control to all of them causes significant stops in voice reproduction
Solution Approach 1:
The patent enables the audio reproduction device to automatically identify and classify discontinuous points using frequency analysis and envelope calculation, then self-correct them through appropriate processing. This self-service mechanism eliminates the need for conservative muting control across all discontinuous points, maintaining continuous voice reproduction even when frequent discontinuities occur.
3Object-affected harmful factors
If conventional muting control is applied to prevent noise, then noise is suppressed, but incomprehensible voice reproduction results
Solution Approach 1:
The patent segments the voice data into individual packets and analyzes each discontinuous point separately using frequency analysis and envelope calculation. This segmentation allows targeted correction of specific discontinuities without applying blanket muting control, thereby maintaining voice comprehensibility while suppressing noise at problematic discontinuous points.
Data Source
AI summary
An audio reproduction device includes a decoding processor to decode input voice data, a discontinuousness determination unit to determine whether or not a packet is discontinuous with a preceding packet, a reset processing unit to reset decode information, a frequency analysis unit to perform frequency analysis on the decoded data, an envelope calculation unit to calculate an envelope of the decoded data, a level difference calculation unit to calculate a level difference of the decoded data, a correction processing unit to apply a specific correction process to the decoded data if the correction process is necessary, and a processing determination unit to determine whether or not the correction process is to be performed, to determine whether or not the packet data is discontinuous, to determine which correction process is to be applied, and to output an instruction to perform the correction process.