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SMF Audio CAPTCHA Software?

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yeehi:
What software is used for audio captchas in SMF?

I hope it isn't Adobe Flash! Is there an alternative to Flash for audio CAPTCHA? What is it?

Arantor:
Nothing, in fact.

What happens is that a .wav file for each letter is modified to add some noise, then stitched together and just shoved to the browser in the hope it can deal with it.

Some browsers can, some can't, but I don't remember Flash ever being used for it.

Mind you, I don't use the CAPTCHA in any fashion, I just have an anti-spam question which works infinitely better.

yeehi:
No Flash! That is great news, Arantor! Thanks for letting me know.

I didn't know the anti-spam question was a good replacement for CAPTCHA. You can make it an international, non-language dependent anti-spam question by having a maths problem. Unfortunately, this doesn't help people who have trouble seeing. They need audio.

Anyway, I am happy! Haha!

Arantor:
Actually, that's not correct.

The people who have trouble seeing, would have trouble reading a forum under that logic, no? There are speech readers available that have no trouble with reading all text - including the question.

I'd avoid the maths question however, they have proven to be less than effective, partly because bots are now smart enough to throw questions at Google (and Google will happily serve them the answer) and because some users have trouble with basic math; I remember recently trying to deal with a guy who insisted that when you have 5 - 8, the answer should be 3. Not -3, and he was becoming most agitated that 3 would not work.

yeehi:
Is your anti-spam question a permanent question, the same one all the time for everybody whenever they post? Or do you have a plugin that generates questions?

That is a funny story about maths problems! I recently saw a contest on a forum. The prize was a fast new solid state drive - nice! If you were canadian and wanted to enter the competition, by law you had to do more than just respond to the product feedback questions they had. They had a maths question. It was really tough! You would have to know about operator precedence and apply it properly!

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