Buffer Memory Decouples Audio Stream Processing
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Solution Overview
Problem
Existing audio decoding and reading systems suffer from degraded sound quality due to rate fluctuations in digital audio stream transmission and electromagnetic interference, which are costly and complex to mitigate.
Innovation Solution
Incorporating a buffer-memory assembly that decouples the reading speed of the digital audio stream from the computing module's writing speed, allowing for a variable delay and reducing the impact of transmission rate fluctuations and electromagnetic interference, thereby improving sound quality without increasing system complexity or cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing circuits are incorporated into the high-fidelity module to reduce transmission rate fluctuations and antenna effects, then sound quality is improved, but device complexity and cost increase
Solution Approach 1:
The patent introduces an intermediary buffer-memory assembly positioned between the computing module and the high-fidelity module. This buffer acts as a mediator that decouples the writing and reading operations, allowing independent control of their respective speeds. The buffer absorbs transmission rate fluctuations and electromagnetic interference without requiring complex correction circuits in the high-fidelity module, thus improving sound quality while maintaining system simplicity.
2Reliability
If existing circuits are incorporated into the high-fidelity module to reduce transmission rate fluctuations and antenna effects, then sound quality is improved, but manufacturing cost increases
Solution Approach 1:
The buffer-memory assembly serves as a cost-effective intermediary solution that addresses transmission rate fluctuations and electromagnetic interference without requiring expensive complex circuits in the high-fidelity module. By placing a relatively simple buffer between the computing module and the high-fidelity module, the system achieves improved sound quality while keeping manufacturing costs low.
3Reliability
If existing circuits are incorporated into the high-fidelity module to reduce transmission rate fluctuations and antenna effects, then sound quality is improved, but power consumption increases and electromagnetic interference worsens
Solution Approach 1:
The buffer-memory assembly acts as an intermediary that reduces power consumption and electromagnetic interference compared to complex correction circuits. The buffer requires minimal power to maintain data storage and can be implemented with low-power memory technologies, thereby improving sound quality without significantly increasing power consumption or electromagnetic interference in the high-fidelity module.
4Speed
If synchronous link is used for digital audio stream transmission, then data transmission is achieved, but rate fluctuations (jitter) occur degrading sound quality
Solution Approach 1:
The buffer-memory assembly performs preliminary action by storing the digital audio stream before it is converted to analog signal. This allows the system to pre-buffer data and compensate for transmission rate fluctuations before they affect the analog conversion process, thereby maintaining transmission regularity and improving sound quality.
Solution Approach 2:
The buffer-memory assembly introduces dynamic flexibility by allowing variable delay between writing and reading operations. This dynamic buffering capability enables the system to adapt to rate fluctuations in real-time, absorbing jitter and maintaining steady data flow to the digital-to-analog converter, thus improving transmission regularity without sacrificing data transmission speed.
Data Source
AI summary
An audio decoding and reading system comprises a computing module, a high-fidelity module, and a buffer-memory assembly which is between the computing module and the high-fidelity module. The buffer-memory assembly is intended to store a sliding segment of a digital audio stream which is transmitted by the computing module to the high-fidelity module. In this manner, a speed of processing of said digital audio stream by a digital-to-analog converter of the high-fidelity module, can be independent of a speed of production of said digital audio stream by the computing module. An improved sound emission quality results from this decoupling.