Media Content Audio-Video Synchronization via Section Mapping
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Solution Overview
Problem
Existing methods for replacing background audio tracks in media content face challenges when the media content and replacement audio tracks have different durations, leading to poor quality edited media.
Innovation Solution
The method involves determining audio sections and features of both audio tracks, computing a cross similarity matrix to map corresponding sections, and adjusting video transitions to align with the new audio track, ensuring seamless integration and maintaining video transition positions relative to audio sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the background audio track is replaced with a different audio track, then the audio quality is improved, but the synchronization between video transitions and audio sections deteriorates when the tracks have different durations
Solution Approach 1:
The patent segments both the original audio track and the replacement audio track into distinct audio sections (e.g., verses, choruses, bridges). By dividing the audio tracks into comparable segments, the system can map corresponding sections between tracks of different durations, maintaining synchronization accuracy while allowing audio track replacement for quality improvement.
Solution Approach 2:
The patent performs preliminary mapping of audio sections between the original and replacement tracks before actual video editing. By pre-establishing the correspondence between audio sections of different durations, the system prepares synchronization data in advance, ensuring that video transitions can be accurately aligned when the replacement audio track is applied.
2Adaptability or versatility
If the audio track duration is changed to match different music selections, then the adaptability is improved, but the video transition positions become misaligned
Solution Approach 1:
The patent implements dynamic adjustment of video transition positions based on the duration and structure of the selected replacement audio track. Rather than using fixed transition positions, the system calculates and adjusts transition timing dynamically to match the audio sections of the chosen track, maintaining alignment while allowing flexible audio selection.
Solution Approach 2:
The patent introduces a mapping dimension between audio sections of different tracks. By creating a correspondence layer that maps sections from the original track to the replacement track (e.g., mapping verse 1 of original to verse 1 of replacement), the system handles duration differences without losing synchronization, enabling versatile audio selection while preserving transition alignment.
3Manufacturing precision
If manual adjustment of video transitions is performed to match new audio tracks, then the synchronization accuracy is improved, but the editing complexity increases
Solution Approach 1:
The patent implements automatic calculation and adjustment of video transition positions based on the mapped audio sections. The system performs the synchronization task itself by computing transition timings from the audio section mapping, eliminating the need for manual adjustment while maintaining high synchronization accuracy, thus reducing editing complexity.
Solution Approach 2:
The patent uses the audio section mapping as feedback to automatically determine optimal video transition positions. By continuously referencing the mapped correspondence between original and replacement audio sections, the system self-corrects transition timing, achieving accurate synchronization without requiring complex manual intervention from the editor.
Data Source
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AI summary
In an example embodiment, a method, apparatus and computer program product are provided. The method includes facilitating receipt of a first media content comprising a first audio track and a first video track, and a second media content comprising a second audio track. Section mapping between a first and a second plurality of audio sections associated with the first and second audio tracks, respectively is performed to determine a plurality of mapping audio sections. Relative position of at least one video transition with respect to the audio section is determined. A corresponding at least one video transition associated with at least one video transition is created in a mapping audio section, based on the relative position of the at least one video transition in the audio section. The first video track is modified based on the relative position of the corresponding at least one video transition in mapping audio section.