Dynamic Playback Speed Adjustment Using User Familiarity

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Solution Overview

Problem

Users face challenges in efficiently consuming media, such as videos or podcasts, as they often need to skip familiar content, which may lead to missing important information, and adjusting playback speed can result in missing information due to interference with comprehension.

Innovation Solution

A dynamic playback speed adjustment system that uses eigenvectors and eigenvalues to track user behavior and preferences, allowing for personalized playback speeds based on familiarity with media content, adjusting speeds to save time and ensure comprehension.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If playback speed is increased to save time, then time consumption is reduced, but information comprehension deteriorates

Engineering Contradiction:

Improvemedia consumption timeVSAvoidinformation comprehension

Core Design Contradiction:

Loss of timeVSLoss of information

Solution Approach 1:

The media content is divided into multiple segments, and playback speed is adjusted independently for each segment based on user familiarity. Familiar segments are played back faster while new segments maintain normal speed, allowing time savings without sacrificing comprehension of important content.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The playback speed is dynamically adjusted rather than applied uniformly. The system continuously monitors user interaction and modifies playback speed in real-time based on detected familiarity levels, enabling adaptive optimization between time efficiency and information retention.

Inventive Principle:

Principle #15Dynamics

2Productivity

If uniform playback speed adjustment is applied to entire media, then time efficiency is improved, but content importance differentiation deteriorates

Engineering Contradiction:

Improvemedia consumption efficiencyVSAvoidcontent importance retention

Core Design Contradiction:

ProductivityVSLoss of information

Solution Approach 1:

Different playback speeds are applied to different parts of the media content based on their importance and user familiarity. Rather than applying a uniform speed change to the entire media file, the system adjusts speed locally for specific segments, preserving the ability to differentiate important from less important content.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system uses user interaction feedback (pauses, rewinds, playback patterns) to detect familiarity levels and automatically adjusts playback speed accordingly. This feedback mechanism ensures that segments requiring careful attention maintain appropriate speeds while familiar segments can be accelerated.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20240185887A1Dynamic playback speed adjustment

Publication Date: 2024.06.06 INTERNATIONAL BUSINESS MACHINE CORPORATION

AI summary

In an approach to playback speed adjustment, one or more computer processors extract metadata from a media file previously consumed by a user. One or more computer processors determine the metadata includes an eigenvector associated with each segment of the media file. One or more computer processors import data associated with actions taken by the user while the user consumed the media file. Based on the data associated with the actions taken by the user while the user consumed the media file, one or more computer processors extract the eigenvector and an associated eigenvalue of each previously consumed segment of the media file from the data associated with actions taken by the user while the user consumed the media file. One or more computer processors add the eigenvector and the associated eigenvalue of each previously consumed segment of the media file to a user profile.