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Wang Alida T. Muongchan  \n[asharif@cs.washington.edu](asharif@cs.washington.edu) [wang4@cs.washington.edu](wang4@cs.washington.edu) [alidatm@uw.edu](alidatm@uw.edu)  \n[Paul G. Allen School of Computer Paul G. Allen School of Computer Human Centered Design and](Paul G. Allen School of Computer Paul G. Allen School of Computer Human Centered Design and)  \n[Science & Engineering | DUB Group](Science & Engineering | DUB Group), Science & Engineering, Engineering,  \nUniversity of Washington University of Washington University of Washington  \nSeattle, Washington, USA Seattle, Washington, USA Seattle, Washington, USA  \nKatharina Reinecke  \n[reinecke@cs.washington.edu](reinecke@cs.washington.edu)[ ](reinecke@cs.washington.edu)[Paul G. Allen School of Computer](Paul G. Allen School of Computer)[ ](Paul G. Allen School of Computer)[Science & Engineering | DUB Group](Science & Engineering | DUB Group), University of Washington Seattle, Washington, USA  \nJacob O. Wobbrock  \n[wobbrock@uw.edu](wobbrock@uw.edu)[ ](wobbrock@uw.edu)The Information School | DUB Group,  \nUniversity of Washington Seattle, Washington, USA  \nFigure 1: VoxLens is an open-source JavaScript plug-in that improves the accessibility of online data visualizations using a multi-modal approach. The code at left shows that integration of VoxLens requires only a single line of code. At right, we portray an example interaction with VoxLens using voice-activated commands for screen-reader users.  \nABSTRACT  \nJavaScript visualization libraries are widely used to create online data visualizations but provide limited access to their information for screen-reader users. Building on prior fndings about the experiences of screen-reader users with online data visualizations, we present VoxLens, an open-source JavaScript plug-in that—with a single line of code—improves the accessibility of online data visualizations for screen-reader users using a multi-modal approach.  \nThis work is licensed under a Creative Commons Attribution International 4.0 License.  \nCHI’22, April 29-May 5, 2022, New Orleans, LA, USA © 2022 Copyright held by the owner/author(s) .  \nACM ISBN 978-1-4503-9157-3/22/04 .  \n[https://doi.org/10.1145/3491102.3517431](https://doi.org/10.1145/3491102.3517431)  \nSpecifcally, VoxLens enables screen-reader users to obtain a holistic summary of presented information, play sonifed versions of the data, and interact with visualizations in a “drill-down” manner using voice-activated commands. Through task-based experiments with 21 screen-reader users, we show that VoxLens improves the accuracy of information extraction and interaction time by 122% and 36%, respectively, over existing conventional interaction with online data visualizations. Our interviews with screen-reader users suggest that VoxLens is a “game-changer” in making online data visualizations accessible to screen-reader users, saving them time and efort.  \nCCS CONCEPTS  \n• Human-centered computing → Information visualization; Accessibility systems and tools; • Social and professional topics → People with disabilities.  \nKEYWORDS  \nVisualizations, accessibility, screen readers, voice-based interaction, blind, low-vision.  \nACM Reference Format:  \nAther Sharif, Olivia H. Wang, Alida T. Muongchan, Katharina Reinecke, and Jacob O. Wobbrock. 2022. VoxLens: Making Online Data Visualizations Accessible with an Interactive JavaScript Plug-In. In CHI Conference on Human Factors in Computing Systems (CHI’22), April 29-May 5, 2022, New Orleans, LA, USA. ACM, New York, NY, USA, 19 pages. [https://doi.org/10](https://doi.org/10) . 1145/3491102.3517431  \n1 INTRODUCTION  \nOnline data visualizations are present widely on the Web, allowing experts and non-experts alike to explore and analyze data both simple and complex. They assist people in extracting information efectively and efciently, taking advantage of the","cbCaicoathijKixH","https://ap.wps.com/l/cbCaicoathijKixH","pdf",2137023,"English","# Abstract\n# 1 Introduction\n## Background and problem\n## Definition of screen-reader users\n## Limitations of current accessibility support\n## Goal and solution overview\n## Modes of interaction","[{\"question\":\"What accessibility limitations do screen-reader users face with online data visualizations?\",\"answer\":\"The visual nature of charts and graphs can prevent screen-reader users from recognizing visual patterns. Even when basic accessibility features exist, they may still take much longer and answer less accurately than non-screen-reader users.\"},{\"question\":\"How does VoxLens improve interaction with online data visualizations?\",\"answer\":\"VoxLens provides a multi-modal interaction model, including holistic summaries, sonification of data, and a drill-down approach controlled by voice-activated commands.\"},{\"question\":\"What evidence supports VoxLens’s effectiveness?\",\"answer\":\"Task-based experiments with 21 screen-reader users show improvements in information extraction accuracy and interaction time compared with conventional interaction methods.\"}]","VoxLens - Making Online Data Visualizations Accessible with an Interactive JavaScript Plug-In | PDF",48]