Tim Starling wrote: > Audio CAPTCHAs, like visual CAPTCHAs, are not accessible for all > people and do not conform to W3C accessibility guidelines. What's > more, they're easier to crack than visual CAPTCHAs due to their > one-dimensional nature. This is especially true if you use a public > source dictionary of spoken phrases, against which an FFT correlation > can be run.
Just as with image captchas, you'd need to introduce noise into it. I have been trying flite, and didn't find the synthesized text too understable by itself. :( http://www.speech.cs.cmu.edu/flite/ http://festvox.org/ _______________________________________________ Wikitech-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikitech-l
