Varied Audio Segment Compression for Accelerated Media Playback
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Solution Overview
Problem
Conventional techniques fail to effectively select and compress specific audio segments within a predefined playback time period for media assets while maintaining user comprehension, as they struggle to determine which segments to play and at what compression rates.
Innovation Solution
The system calculates the playback speed of video segments based on the duration and playback time period, analyzes audio segments for similarity, assigns priority weights, and selectively removes lower-priority segments to fit the playback time, using predefined priority schemes and real-time locational information to adjust playback times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If uniform audio compression is applied to all audio segments for accelerated playback, then the playback speed increases to fit the video duration, but the audio comprehension deteriorates due to increased pitch and loss of important content
Solution Approach 1:
The patent divides the audio track into multiple segments based on content type (dialogue, music, sound effects, etc.). Each segment is then processed independently with different compression strategies, allowing important segments like dialogue to be preserved while less critical segments can be compressed more aggressively for accelerated playback.
Solution Approach 2:
Different audio segments are assigned different quality levels and compression rates based on their importance. Critical segments maintain higher quality with lower compression, while non-critical segments accept higher compression for faster playback. This local differentiation resolves the contradiction by preserving comprehension where needed while enabling speed increase where acceptable.
2Loss of information
If selective audio segment compression is implemented to maintain comprehension, then audio quality is preserved for important segments, but the system complexity increases due to segment selection and priority weighting mechanisms
Solution Approach 1:
The system performs preliminary analysis of the audio track to identify and categorize segments before playback. Priority weights are pre-assigned to different segment types based on their importance to comprehension. This upfront preparation reduces runtime complexity by establishing a clear hierarchy for segment processing before accelerated playback begins.
Solution Approach 2:
The system uses parameter-based classification of audio segments (type, importance, duration) to automatically determine compression strategies. By changing and analyzing segment parameters, the system can make automated decisions about which segments to compress and at what rate, reducing the need for complex real-time decision-making during playback.
3Duration of action of moving object
If audio segments are removed to fit playback time, then the playback time constraint is satisfied, but the audio completeness deteriorates
Solution Approach 1:
The system extracts and removes only those audio segments that are determined to be least important to overall comprehension, based on their priority weights and content type. By selectively extracting non-essential segments rather than uniformly compressing all audio, the system fits the playback time constraint while minimizing loss of important information.
Solution Approach 2:
The system discards low-priority audio segments that exceed the playback time constraint, while preserving high-priority segments. The segmentation and priority assignment enable the system to discard specific portions without compromising overall audio completeness, as the essential content is recovered and maintained in the final playback.
4Loss of information
If varied compression rates are applied to different audio segments, then audio comprehension is maintained, but the processing time increases due to individual segment analysis and modification
Solution Approach 1:
The system performs segment analysis, classification, and priority assignment as preliminary actions before the actual compression and playback process. By completing these processing steps upfront, the system reduces the processing time required during accelerated playback, as the segmentation and parameter assignment are already established and can be applied efficiently to each segment.
Data Source
AI summary
Systems and methods are disclosed herein for varied audio segment compression for accelerated playback of media assets. A priority weight for each of the various audio segments is then determined. Each audio segment for use during accelerated playback is based on the priority weight of that audio segment, the received playback time period, and a duration of that audio segment. A sum of the modified time for each audio segment equals the received playback time period. An accelerated playback speed for each audio segment is determined based on the modified time for that audio segment and the duration of that audio segment. The technique generates for playback the video segment based on a determined video playback speed and the audio segments based on the accelerated playback speed for each audio segment.