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Monday, April 17, 2006

Googles new Vocal Captcha for the Blind

Posted by Harsha

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Google introduced the new Word Verification "CAPTCHA" feature to prevent automated spam robots from abusing the system. The problem was that blind readers would not read the generated image text on the screen. Sometimes, the generated letters are so distorted or confusing that normal web users can't indentify the text.

Google now has comeup with a solution. If you can't read the CAPTCHA text, Google has launched an alternate Audio CAPTCHA as part of their word verification process. Users can now click the small wheel chair icon and it will spell out the verifiaction text, so that the user can Listen and type the text.

The Voice Captcha is currently available when you sign up for a new Google Account but it is also expected to be available soon in Blogger Comment.

If you are not aware, CAPTCHA is an acronym for "completely automated public Turing test to tell computers and humans apart", trademarked by Carnegie Mellon University.


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