Wearable Video Headset Synchronous Audio-Video Stream Encoding
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Solution Overview
Problem
Conventional audio and video processing systems fail to effectively combine and synchronize audio and video streams in a way that maintains contextual links between different audio and video components, limiting the usefulness of recordings and live-streams, especially in scenarios where ambient sound and communications audio are relevant.
Innovation Solution
A wearable device with a communications subsystem and a camera subsystem that synchronously encodes audio and video signals into a single data stream, including ambient sound, communications audio, and video, allowing for contextual relationships between the streams to be maintained through simultaneous, time-synchronized playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If audio and video streams are processed independently in conventional systems, then system complexity is reduced and ease of manufacture is improved, but contextual links between audio and video components are lost and information completeness deteriorates
Solution Approach 1:
The patent combines multiple independent audio streams (communications audio from receiver and ambient sound from microphones) and video streams into a single synchronized data stream using a stream combiner. This merging process preserves contextual links between audio and video components while maintaining manageable system complexity through standardized encoding formats and synchronization protocols.
2Loss of information
If multiple audio streams are combined into a single data stream, then information completeness and contextual relevance are improved, but data processing complexity and encoding difficulty increase
Solution Approach 1:
The system applies preliminary timestamping and synchronization metadata embedding to each audio and video stream before combining them. This preliminary action establishes temporal references that simplify the subsequent encoding and synchronization processes, making it easier to maintain alignment between multiple audio streams and video without excessive processing complexity.
Solution Approach 2:
The patent introduces an intermediary synchronization layer that mediates between multiple audio streams and the video stream. This intermediary component manages the complex synchronization requirements by using timestamp correlation and buffer management, reducing the overall encoding difficulty while preserving all audio contexts.
3Reliability
If audio and video streams are synchronized and encoded together, then playback quality and contextual relevance are improved, but processing time and energy consumption increase
Solution Approach 1:
The system dynamically adjusts encoding parameters such as bitrate, resolution, and sampling rates based on the importance and activity level of different audio and video streams. By changing these parameters adaptively, the system maintains high synchronization reliability for critical streams while reducing energy consumption for less critical content, optimizing the balance between playback quality and power usage.
Data Source
AI summary
A wearable device and corresponding methods and computer-readable media are disclosed, where the method comprises: receiving a first audio signal from an audio communication device; providing first audio based on the first audio signal; capturing second audio, wherein the second audio represents a voice of a wearer of the wearable device; generating a second audio signal, wherein the second audio signal represents the second audio; transmitting the second audio signal to the audio communication device; capturing video; providing a video signal, wherein the video signal represents the video; capturing third audio, wherein the third audio represents ambient sound; generating a third audio signal, wherein the third audio signal represents the third audio; and synchronously encoding, into a single data stream, the first audio signal, the second audio signal, the third audio signal, and the video signal.