Now this version of the captcha are not used. So code useless.
Code explanation on this video:
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.
Maxim Vedenyov (2023). Recaptcha audio recognition, 1-4 July 2012 (https://www.mathworks.com/matlabcentral/fileexchange/37522-recaptcha-audio-recognition-1-4-july-2012), MATLAB Central File Exchange. Retrieved .
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