CPI EVP Classification & Analysis 2

Question 1

Which EVP class designation is assigned to voices that are clearly audible, require no amplification, and can be understood by most listeners without coaching?

Accepted Answer

Class A

Answer

Class A EVPs are the highest quality, clearly audible to most listeners without enhancement or prior suggestion.

Question 2

An investigator records audio near an active electrical panel during an EVP session. The resulting anomalous sounds are most likely attributed to what?

Accepted Answer

EMF interference causing audio artifacts

Answer

Electromagnetic fields from electrical panels commonly induce false-positive audio artifacts in recording equipment.

Question 3

During spectral analysis of a suspected EVP, investigators notice the voice appears only in a very narrow frequency band around 1 kHz. What does this suggest?

Accepted Answer

The recording may be contaminated by radio frequency interference

Answer

Natural human speech covers a broad frequency range; a very narrow band signal often indicates RFI or electronic interference rather than a genuine voice.

Question 4

What is the term for the psychological phenomenon where listeners perceive meaningful words in random noise, commonly misidentified as EVP?

Accepted Answer

Auditory pareidolia

Answer

Auditory pareidolia causes the brain to find familiar patterns like voices within random audio noise, a leading cause of false EVP identification.

Question 5

A Class B EVP requires what additional step before it can be evaluated by a review panel?

Accepted Answer

Amplification or noise reduction to be intelligible to multiple listeners

Answer

Class B EVPs are not immediately clear and typically require amplification or noise reduction before multiple listeners can assess the content.

(CPI) Certified Paranormal Investigator Practice Test

(CPI) Certified Paranormal Investigator Practice Test

CPI EVP Classification & Analysis 2