Dynamic Sampling Frequency Adjustment for Wireless Microphone Bandwidth
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Solution Overview
Problem
WiFi wireless microphones often face interference and bandwidth issues, leading to packet loss and reduced sound pickup quality due to insufficient bandwidth, especially when multiple microphones are used in conferences.
Innovation Solution
A data transmission method and system that dynamically adjusts sampling frequency and data transmission paths of a wireless microphone array based on real-time communication channel conditions, reducing sampling frequency and data transmission paths when bandwidth is low and increasing when conditions improve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple wireless microphones are deployed to ensure good sound pickup effect, then sound quality is improved, but bandwidth requirements increase and packet loss occurs due to interference and blocking
Solution Approach 1:
The patent implements dynamic adjustment of sampling frequency based on real-time channel conditions. The system monitors communication status and adjusts the sampling frequency of wireless microphones dynamically - reducing it when bandwidth is insufficient or interference is detected, and increasing it when conditions improve. This resolves the contradiction by making the system adaptable to varying bandwidth availability while maintaining optimal sound quality.
Solution Approach 2:
The system changes key transmission parameters (sampling frequency, data transmission paths) based on channel conditions. By adjusting these parameters dynamically, the system can accommodate varying bandwidth requirements and interference levels, ensuring reliable sound pickup without requiring fixed high bandwidth allocation for multiple microphones.
2Quantity of substance
If sampling frequency is reduced to decrease bandwidth usage, then bandwidth consumption is reduced, but sound quality deteriorates
Solution Approach 1:
Instead of using a fixed low sampling frequency, the system dynamically adjusts it based on actual channel conditions and priority levels. When bandwidth is abundant and sound quality is prioritized, the sampling frequency is increased. When bandwidth is constrained, it is reduced. This dynamic approach ensures sound quality is maintained at the highest possible level given available resources.
Solution Approach 2:
The system implements feedback mechanisms where the host monitors communication status and sends control commands to adjust sampling frequency. This closed-loop control ensures that sound quality requirements are met by adjusting parameters based on real-time feedback about both channel conditions and quality requirements.
3Quantity of substance
If data transmission paths are decreased to reduce bandwidth usage, then bandwidth consumption is reduced, but sound pickup effect deteriorates
Solution Approach 1:
The system dynamically adjusts the number of active data transmission paths based on bandwidth availability and sound quality requirements. When multiple microphones are active and bandwidth is sufficient, more transmission paths are utilized to maintain sound quality. When bandwidth is constrained, the system reduces the number of paths while managing quality expectations, resolving the contradiction through adaptive behavior.
Data Source
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AI summary
Embodiments of the present invention disclose a data transmission method and system, and a related device, which are applicable to the field of communications technologies. In the data transmission method of the embodiments, a host acquires parameter information of a wireless communication channel between a wireless microphone array and the host, that is, a signal-to-noise ratio and/or bandwidth; if the acquired parameter information satisfies a first preset condition, the host reduces sampling frequency of the wireless microphone array or decreases a quantity of data transmission paths between the wireless microphone array and the host, so that bandwidth occupied when the wireless microphone array transmits data is reduced. In this way, the host can dynamically adjust a data transmission parameter of the wireless microphone array according to an actual status of communication between the wireless microphone array and the host, which satisfies a demand of the wireless microphone array that communicates with the host as much as possible.