Audio Data Replacement in Recorded Video Streams

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Solution Overview

Problem

Users often record video and audio streams with outdated information, such as commercial messages, due to the delay in viewing recorded programs, which can be obsolete by the time they are watched, and existing technologies do not provide an efficient method to update this content.

Innovation Solution

A method and system for replacing audio data within a recorded audio/video stream by receiving an audio data segment and location information, allowing for the identification and replacement of specific audio portions within the stream, enabling the updating of content such as commercial messages or other audio data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If users record audio/video streams for later viewing, then viewing convenience is improved, but information freshness deteriorates

Engineering Contradiction:
Improveviewing convenienceVSAvoidinformation freshness
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The system performs preliminary replacement of audio data segments in recorded streams with updated content before the user views the program. By proactively updating commercial messages and audio content in stored recordings with current information, the system ensures that when users watch recorded programs days or weeks later, they receive fresh, relevant information rather than outdated broadcasts.

Inventive Principle:
Principle #10Preliminary action

2Loss of information

If audio data is replaced in recorded streams, then information freshness is improved, but device complexity increases

Engineering Contradiction:
Improveinformation freshnessVSAvoidsystem complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The system divides the audio stream into discrete replaceable segments, allowing selective replacement of specific audio portions (such as commercial messages) without affecting the entire recorded program. This segmentation enables targeted updates to only the audio data that requires refreshing, simplifying the overall replacement process while maintaining information freshness in critical areas.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system introduces an intermediary layer between the original audio/video stream and the user playback, consisting of audio replacement data and location information. This intermediary mechanism allows automatic substitution of audio segments without requiring complex reprocessing of the entire recorded stream, thereby reducing device complexity while achieving information freshness.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If audio replacement is enabled, then content adaptability is improved, but processing time increases

Engineering Contradiction:
Improvecontent adaptabilityVSAvoidprocessing time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system performs audio replacement operations in advance, before the user views the recorded program. By pre-processing and substituting audio segments during storage or prior to playback, the system enables content adaptability (such as updating commercials or audio content) without adding processing delays during actual viewing, thus minimizing loss of time for the user.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2269191B1Method and apparatus for replacement of audio data in a recorded audio/video stream
Publication Date: 2019.04.24 DISH NETWORK LLC
  • EP2269191B1 patent drawingFigure 1
  • EP2269191B1 patent drawingFigure 2
  • EP2269191B1 patent drawingFigure 3

AI summary

A method for replacing audio data within a recorded audio/video stream is presented (100). In the method, a first audio/video stream including audio data, video data, and supplemental data is stored (102). Location information is received which references the supplemental data to identify a location within the first audio/video stream (106). The location information is received in a data file separately from the first audio/video stream (106). Also received is an audio data segment (108). At least a portion of the audio data of the first audio/video stream is replaced at the identified location with the audio data segment Io produce a second audio/video stream (108). At least a portion of the second audio/video stream is then transferred for presentation (110).