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Usable Audio CAPTCHAs - University of Washington
http://webinsight.cs.washington.edu/projects/audiocaptchas/#:~:text=Usable%20Audio%20CAPTCHAs%20CAPTCHAs%20and%20Audio%20CAPTCHAs%20CAPTCHAs,that%20cannot%20easily%20be%20solved%20by%20a%20computer.
Usable Audio CAPTCHAs - University of Washington
https://webinsight.cs.washington.edu/projects/audiocaptchas/
CAPTCHAs are tests that are used to detect spammers and automated processes masquerading as humans. To access a resource, the user must solve a problem that cannot easily be solved by a computer. The most common form is the Visual CAPTCHA, which consists of some distorted text: The human who wishes to acces…
Usable Audio CAPTCHA Implementation Details
http://webinsight.cs.washington.edu/projects/audiocaptchas/implementation.html
How to put a Usable Audio CAPTCHA on your website. We assume that you already have an Audio CAPTCHA from some source, such as reCAPTCHA. Copy the UAC script to the directory containing the website, along with the soundmanager2.js and soundmanager2.swf files. Add the following lines of code somewhere after the location of the Audio CAPTCHA:
Usable Audio CAPTCHA with reCAPTCHA
http://webinsight.cs.washington.edu/projects/audiocaptchas/recaptcha_demo.php
When the captcha is in Audio mode (selected by clicking the button with the speaker icon), the following controls are available: Typing a period (.) in the box will cause the captcha to play, and pressing it again will pause playback. Typing a comma (,) will rewind the captcha by 1 second, and then continue playing.
Audio CAPTCHA: Usable Accessibility + Usable Security
http://assistech.iitd.ac.in/empower2018/abstracts/Audio%20CAPTCHA.pdf
Audio CAPTCHA: Usable Accessibility + Usable Security Abstract Visual CAPTCHAs are designed to be unreadable by machine, hence, are inaccessible to assistive technology users. Traditional Audio CAPTCHAs are theoretically accessible to visually impaired (VI) users but are often hard to solve with low success rate, i.e., below 50% and ...
Blind and Human: Exploring More Usable Audio …
https://www.usenix.org/system/files/soups2020-fanelle_0.pdf
there remains a need to create usable audio CAPTCHAs that are at least as strong as standard designs [7,16,30]. 2.2 Improving Audio CAPTCHAs Interesting innovation is occurring in this field. For instance, Soupionis et al. [31] implemented an audio CAPTCHA pro-totype for SIP-based Voice over IP (VoIP). However, their
Blind and Human: Exploring More Usable Audio …
https://www.usenix.org/conference/soups2020/presentation/fanelle
For people with visual impairments (PVIs), audio CAPTCHAs are accessible alternatives to standard visual CAPTCHAs. However, current audio CAPTCHA designs are slower to complete and less accurate than their visual counterparts. We designed and evaluated four novel audio CAPTCHAs that we hypothesized would increase accuracy and speed.
Automatic Generation and Evaluation of Usable and …
https://www.microsoft.com/en-us/research/publication/automatic-generation-and-evaluation-of-usable-and-secure-audio-recaptcha/
We evaluated four audio CAPTCHA schemes with 60 sighted and 19 visually impaired participants. We found that our proposed Last Two Words scheme was the most usable with success rate of >78.2% and low response time of 14.5s. Furthermore, solving our audio CAPTCHAs can transcribe unknown words with >82% accuracy. View Publication
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