Audio CAPTCHA Using Echo

A processor-implemented method of determining that a user of an interactive voice component is one of human and non-human, comprising:

• by an audio validation component comprising a processor operatively coupled to a memory device:
• generating a challenge phrase;
• applying an effect to at least a portion of the challenge phrase, the effect comprising an echo perturbation, to form a modified challenge phrase,
• issuing the modified challenge phrase to the user;
• receiving a response from the user;
• and
• evaluating the response to determine that the response is a correct response to the challenge phrase, such that (i) when the response is determined to be a correct response to the challenge phrase, designating the user as human, and (ii) when the response is determined to be an incorrect response to the challenge phrase, designating the user as non-human.

A processor-based system comprising:

• at least one processor;
• and
• a memory comprising code stored therein that, when executed by the at least one processor, performs a method of implementing a test to determine that the user is one of human and non-human, the test comprising:
• a challenge phrase issued to the user;
• an effect applied to the challenge phrase, the effect comprising an echo perturbation;
• and
• an evaluation of a response received from the user to determine that the response is a correct response to the challenge phrase, such that (i) when the response is determined to be a correct response to the challenge phrase, the user is designated as human, and (ii) when the response is determined to be an incorrect response to the challenge phrase, the user is designated as non-human.