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The SoundsRight CAPTCHA: an improved approach to audio human interaction proofs for blind users

Published: 05 May 2012 Publication History

Abstract

In this paper we describe the development of a new audio CAPTCHA called the SoundsRight CAPTCHA, and the evaluation of the CAPTCHA with 20 blind users. Blind users cannot use visual CAPTCHAs, and it has been documented in the research literature that the existing audio CAPTCHAs have task success rates below 50% for blind users. The SoundsRight audio CAPTCHA presents a real-time audio-based challenge in which the user is asked to identify a specific sound (for example the sound of a bell or a piano) each time it occurs in a series of 10 sounds that are played through the computer's audio system. Evaluation results from three rounds of usability testing document that the task success rate was higher than 90% for blind users. Discussion, limitations, and suggestions for future research are also presented.

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      cover image ACM Conferences
      CHI '12: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
      May 2012
      3276 pages
      ISBN:9781450310154
      DOI:10.1145/2207676
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Published: 05 May 2012

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      Author Tags

      1. accessibility
      2. audio CAPTCHA
      3. blind users
      4. evaluation
      5. human interaction proof
      6. security
      7. web accessibility

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      • (2024)I Don’t Want to Sound Rude, but It’s None of Their Business: Exploring Security and Privacy Concerns around Assistive Technology Use in Educational SettingsACM Transactions on Accessible Computing10.1145/367069017:2(1-30)Online publication date: 29-Jul-2024
      • (2023)A research framework and initial study of browser security for the visually impairedProceedings of the 32nd USENIX Conference on Security Symposium10.5555/3620237.3620499(4679-4696)Online publication date: 9-Aug-2023
      • (2023)An efficient technique for breaking of coloured Hindi CAPTCHASoft Computing10.1007/s00500-023-07844-327:16(11661-11686)Online publication date: 25-Jan-2023
      • (2022)reCAPTCHA challenges and the production of the ideal web userConvergence: The International Journal of Research into New Media Technologies10.1177/1354856522114544929:4(886-900)Online publication date: 13-Dec-2022
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      • (2021)WebAllyProceedings of the Seventeenth USENIX Conference on Usable Privacy and Security10.5555/3563572.3563587(281-297)Online publication date: 9-Aug-2021
      • (2021)Audio CAPTCHA for Visually Impaired2021 International Conference on Electrical, Computer, Communications and Mechatronics Engineering (ICECCME)10.1109/ICECCME52200.2021.9590892(1-5)Online publication date: 7-Oct-2021
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