Bandwidth Modulation for Audio Reliability
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Solution Overview
Problem
Video conferencing systems often experience suboptimal performance due to high bandwidth requirements, leading to degraded audio quality characterized by packet loss, jitter, and latency, which existing technologies fail to adequately address.
Innovation Solution
A computer-implemented method that monitors AV synchronous communication sessions, adjusts the video channel by reducing bandwidth requirements through techniques such as lowering video resolution, frame rate, or eliminating the video channel, and transfers the audio channel to a public switched telephone network if necessary, based on performance characteristics like packet loss, jitter, and latency statistics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If video conferencing systems operate with full video channel bandwidth, then video quality is maintained, but audio performance deteriorates due to packet loss, jitter, and latency
Solution Approach 1:
The system dynamically adjusts video channel parameters (resolution, frame rate, bitrate) based on real-time network conditions and audio performance metrics. When audio performance degrades below thresholds, the system automatically reduces video bandwidth consumption through parameter changes, ensuring audio reliability is maintained while optimizing overall system performance.
Solution Approach 2:
The invention changes video channel parameters (resolution, frame rate, bitrate, codec settings) to reduce bandwidth requirements when audio performance deteriorates. By modifying these parameters dynamically, the system reallocates network resources from video to audio channels, resolving the contradiction between maintaining audio reliability and reducing total bandwidth consumption.
2Reliability
If video resolution and frame rate are reduced to lower bandwidth requirements, then audio performance improves, but video quality deteriorates
Solution Approach 1:
The system dynamically adjusts video quality parameters based on current network conditions and priority requirements. Rather than permanently degrading video quality, the system temporarily reduces video resolution and frame rate only when audio performance thresholds are violated, allowing video quality to be restored when network conditions improve.
Solution Approach 2:
The invention modifies video channel parameters (resolution, frame rate, bitrate) as adjustable variables to balance audio and video performance. By treating these parameters as changeable rather than fixed, the system can optimize the trade-off between audio reliability and video quality based on real-time conditions, preventing permanent degradation of video quality.
3Reliability
If the video channel is eliminated to reduce bandwidth requirements, then audio performance improves, but the communication session loses its video component
Solution Approach 1:
The system dynamically determines whether to eliminate or reduce video based on severity of audio performance degradation and user preferences. Rather than permanently eliminating video, the system adaptively adjusts between full video, reduced video, or audio-only modes, maintaining communication session versatility while improving audio performance when necessary.
Solution Approach 2:
The invention treats video channel presence as an adjustable parameter rather than a fixed state. By changing the video channel parameter from full operation to reduced operation or elimination, the system resolves audio performance issues while preserving the ability to restore video functionality when conditions improve, thus maintaining adaptability of the communication session.
Data Source
AI summary
A method and computing system for monitoring an AV synchronous communication session of a user. The AV synchronous communication session includes an audio channel and a video channel. A performance characteristic is determined for the audio channel. The performance characteristic is compared to a defined audio performance threshold. If the performance characteristic does not meet the defined audio performance threshold, the video channel is adjusted to reduce the bandwidth requirements of the video channel.