Recaptcha audio recognition, 1-4 July 2012

Explaned how audio recaptcha was recognized. Time domain method.

http://simulations.narod.ru/

Now this version of the captcha are not used. So code useless.

Code explanation on this video:

http://www.youtube.com/watch?v=UoS4qEOiKwg

or in presentation.ppt file inside zip-archive.

run test189_recognize3_many.m to get 30 captchas recogniztion.

samples3 subfolder has all 20 digits sounds noise reducted, newnew_12_1 subfolder has 30 captchas in wav-format for test.