Audio-Visual Synchronization Using Rhythm Metric Units
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Solution Overview
Problem
Conventional methods for synchronizing multiple audio and video clips across different formats and browsers are computationally expensive, prone to errors, and result in desynchronization, especially due to varying rhythms and durations, and lack cross-browser compatibility.
Innovation Solution
A method and apparatus for creating a synchronized lineal sequence from multiple audio and video inputs by determining rhythm metric units, separating audio and video data, and using a timing algorithm to ensure alignment, with options for user-defined tempo and format compatibility across various platforms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple audio and video clips of different rhythms and durations are synchronized using conventional methods, then cross-browser compatibility and format support are improved, but computational expense increases and synchronization reliability deteriorates
Solution Approach 1:
The patent segments audio and video data into discrete clips that can be independently processed and synchronized. Each clip is treated as a separate unit with its own rhythm metric units, allowing for modular synchronization that reduces computational complexity while maintaining reliability across different browsers and formats.
Solution Approach 2:
The patent changes the parameter of rhythm representation by determining rhythm metric units for each clip and using these standardized parameters to control playback timing. This parameter transformation enables reliable synchronization across different formats and browsers by converting diverse audio-visual data into a common rhythmic framework.
2Ease of operation
If multiple audio and video clips are processed and synchronized in real-time, then playback flexibility is improved, but computational expense and processing power requirements increase
Solution Approach 1:
The patent performs preliminary determination of rhythm metric units for each audio and video clip before synchronization. This advance preparation allows the system to store pre-analyzed temporal characteristics, reducing the computational expense during real-time playback while maintaining flexibility in clip selection and arrangement.
3Productivity
If audio and video data streams are processed separately and then combined, then processing efficiency is improved, but synchronization accuracy deteriorates due to drift and freezing
Solution Approach 1:
The patent implements a feedback mechanism where the playback system continuously monitors the synchronization of audio and video streams and adjusts timing based on detected drift. This feedback loop maintains synchronization accuracy despite separate processing of audio and video data, preventing the chaotic audio-visual cacophony described in the background.
4Adaptability or versatility
If users can freely swap and reorder audio and video clips, then composition versatility is improved, but error proneness increases due to desynchronization
Solution Approach 1:
The patent creates a universal synchronization framework based on rhythm metric units that can accommodate any audio or video clip regardless of its original format or timing characteristics. This universal approach allows users to freely swap and reorder clips while maintaining synchronization stability, as all clips are converted to and controlled by the common rhythmic parameter system.
Data Source
AI summary
The present invention relates to a method and apparatus to synchronise audio and video data. More particularly, the present invention relates to a loop-based audio-visual mixing apparatus and method for synchronising a plurality of videos and their corresponding audio streams to create audio-visual compositions. According to one aspect, there is provided a method for creating a synchronised lineal sequence from multiple inputs of audio and video data, comprising the steps of: providing a first input, comprising audio and video data; providing one or more subsequent inputs, comprising audio and video data; determining at least one rhythm metric unit for each input; queueing the or each subsequent inputs such that the or each subsequent input is triggered at a beginning of a next said rhythm metric unit of a determined input.