Audio Book Cognitive Aid for Hands-Free Information Access
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Solution Overview
Problem
Audio books presented on electronic devices lack adequate solutions for listeners to access encyclopedic, glossary, and plot information without rewinding or re-listening, especially when managing devices hands-free during activities like driving or walking.
Innovation Solution
A system and method that allows listeners to audibly request and receive encyclopedic, glossary, and plot information up to the current playback position in an audio book using a media player app or operating system, accessing metadata locally or from a cloud server, and presenting this information through speakers or headphones, with natural language understanding to identify requests and commands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the listener rewinds to access prior portions of the audio book, then the listener can ascertain information about the storyline, but the listener loses time and cannot easily manage the device hands-free
Solution Approach 1:
The system pre-processes and stores metadata about the audio book content (plot summaries, character descriptions, glossary terms) before playback. When the user requests information, the system retrieves pre-prepared summaries based on the current playback position, eliminating the need for the user to rewind and re-listen through the entire audio book to find the information.
Solution Approach 2:
The system introduces an intermediary layer between the audio book content and the user's information requests. This intermediary is the metadata database and processing system that translates user queries into relevant information retrieval operations, allowing the user to access information without directly interacting with the audio playback itself.
2Ease of operation
If the audio book is presented on electronic devices without screens or with small screens, then the device is more portable and suitable for hands-free activities, but the listener cannot easily ascertain information about the audio book
Solution Approach 1:
The system replaces the mechanical/visual interaction model (requiring screen display and manual navigation) with an acoustic interaction model. Users communicate information requests through voice commands, and the system responds through audible output, eliminating the need for visual display devices while maintaining full information accessibility.
Solution Approach 2:
The audio book playback system is enhanced with multi-functionality by integrating information retrieval capabilities beyond just playing audio. The system can now provide encyclopedic information, plot summaries, character descriptions, and glossary terms on demand, making the device serve multiple functions without requiring additional hardware.
3Loss of information
If the system provides comprehensive information about the audio book, then the listener gains complete understanding, but the system may reveal spoilers of the storyline
Solution Approach 1:
The system applies local quality by tailoring the information provided to the specific context of the current playback position. When a user requests information, the system queries metadata filtered by the current time marker, ensuring that only information relevant to what has been heard so far is provided, while deliberately excluding information about future plot developments that would constitute spoilers.
Solution Approach 2:
The system dynamically adjusts the scope and content of information retrieval based on the current playback position. The metadata queries are dynamically filtered by time markers associated with the current playback state, allowing the system to adaptively provide appropriate information levels without revealing future plot twists or spoilers.
Data Source
AI summary
Cognitive aids for various aspects of an audio book may be provided to aid an end-user in following the book's characters and plot and to remind the end-user about prior aspects of the audio book. In some specific examples, the aid may be requested audibly, and the plot data and/or other data may be presented audibly.