Audio Switching for Visually Impaired Conference Participants
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Solution Overview
Problem
Conventional online conference systems lack adequate accessibility options for participants with visual impairments, making it difficult for them to consume multimedia content in real-time, as they often rely on manual navigation between audio and visual streams, which can be confusing and frustrating.
Innovation Solution
A conferencing system that generates voice-over content from presentation materials, allowing seamless switching between a presenter's audio and voice-over audio descriptions of visual content, synchronized with presentation segments, using techniques like Job Access With Speech (JAWS) and NonVisual Desktop Access (NVDA), enabling participants to easily access and navigate multimedia content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual navigation between audio and visual streams is provided, then participants can access both audio content and visual content, but participants with visual impairments experience confusion and frustration due to lack of accessibility options
Solution Approach 1:
The patent introduces voice-over content as an intermediary that describes visual content in audio form. Screen reading techniques and systems (JAWS, NVDA) convert visual presentation content into spoken descriptions, allowing visually impaired participants to understand visual content through audio without directly accessing the visual stream themselves.
Solution Approach 2:
The patent divides presentation content into discrete presentation segments and divides both audio content and voice-over content into corresponding segments. This segmentation allows participants to switch between audio and voice-over segments at meaningful boundaries (slides, topics, or time-based divisions), making navigation manageable and understandable rather than overwhelming.
2Adaptability or versatility
If switching between audio segment and voice-over segment is enabled, then participants can cross-reference content and understand both presenter's speech and visual content descriptions, but system complexity increases
Solution Approach 1:
The conferencing system is designed to handle multiple content types (audio content, voice-over content, presentation segments) through a unified switching mechanism. The same infrastructure that manages audio-visual switching is extended to manage audio-voice-over switching, avoiding the need for separate complex systems for each function.
Solution Approach 2:
Voice-over content is generated and segmented in advance alongside audio content and presentation content. All content is prepared and synchronized before the online conference begins, with segments pre-matched to corresponding presentation segments. This preliminary preparation reduces real-time processing complexity during the actual conference.
3Loss of information
If voice-over content is generated from presentation content using screen reading techniques, then visually impaired participants can access visual content descriptions, but processing time and computational resources increase
Solution Approach 1:
Voice-over content is generated and segmented in advance alongside audio content and presentation content. All content is prepared and synchronized before the online conference begins, with segments pre-matched to corresponding presentation segments. This preliminary preparation reduces real-time processing complexity during the actual conference.
4Productivity
If presentation content is divided into segments and synchronized with audio and voice-over content, then participants can navigate content efficiently, but system complexity and processing requirements increase
Solution Approach 1:
The patent divides presentation content into discrete presentation segments and divides both audio content and voice-over content into corresponding segments. This segmentation allows participants to switch between audio and voice-over segments at meaningful boundaries (slides, topics, or time-based divisions), making navigation manageable and understandable rather than overwhelming.
Solution Approach 2:
The patent combines presentation segments, audio segments, and voice-over segments into synchronized groups where each group contains corresponding content from all three sources. This merging creates unified content packages that can be switched as complete units, simplifying the switching mechanism rather than requiring independent control of multiple separate streams.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides an immersive and accessible experience for visually impaired participants, allowing them to seamlessly switch between audio and voice-over content, enhancing their ability to consume online conference material without additional costs or complexity for presenters, and aligns with disability regulations.
Implementation Method 1
The conferencing system generates voice-over content from the presentation content by converting text of the presentation content to audio
Data Source
AI summary
Techniques and systems are described for accessible audio switching options during the online conference. For example, a conferencing system receives presentation content and audio content as part of the online conference from a client device. The conferencing system generates voice-over content from the presentation content by converting text of the presentation content to audio. The conferencing system then divides the presentation content into presentation segments. The conferencing system also divides the audio content into audio segments that correspond to respective presentation segments, and the voice-over content into voice-over segments that correspond to respective presentation segments. As the online conference is output, the conferencing system enables switching between a corresponding audio segment and voice-over segment during output of a respective presentation segment.