E V P – Stands for Electronic Voice Phenomena. At it’s most basic level it is sounds and voices appearing on a recording that were not heard at the time the recording was made.
Class “A” EVP – fOR AN EVP TO RECIEVE A CLASS A RATING IT MUST BE A VERY CLEAR VOICE AND EVERYONE THAT LISTENS TO THE RECORDING SHOULD AGREE ON WHAT IS BEING SAID BY THE GHOST OR SPIRIT EVERYONE WHO HEARS THE VOICE MUST COME TO THE SAME CONCLUSION ABOUT WHAT IS SAID WITHOUT BEING TOLD BY ANOTHER INVESTIGATOR. CLASS “A” EVP’S ARE THE BEST CAPTURED AND ARE THE RAREST TO RECORD.
CLASS “B” EVP – AN EVP THAT CAN BE UNDERSTOOD AND MOST PEOPLE AGREE ON WHAT IS BEING SAID WILL FALL INTO THE CLASS “B” CATEGORY THESE EVP’S MIGHT NOT BE UNDERSTOOD BY EVERYONE WHO LISTENS TO THEM AND MIGHT EVEN BE HEARD AS SOMETHING COMPLETELY DIFFERENT BUY OTHER PEOPLE THAT LISTEN TO THE RECORDING. THIS CLASS EVP MIGHT NEED TO BE AMPLIFIED USING A SOUND EDITING PROGRAM BEFORE THEY CAN BE CLEARLY UNDERSTOOD. TO GET A CLASS “B” RATING THE VOICE MUST BE FAIRLY CLEAR AND IT SHOULD BE EASY TO DETERMINE WHAT MOST WORD ARE WHEN ANALYZING WITH YOUR COMPUTER. THIS IS THE MOST COMMON CLASS EVP CAPTURED.
CLASS “C” EVP- THE CLASSC EVP ARE THE WORST QUALITY VOICES THAT YOU CAN CAPTURE. IT IS NEARLY IMPOSSIBLE TO UNDERSTANS WHAT IS BEING SAID EVEN WITH THE HELP OF COMPUTER ENHANCEMENT THESE EVP’S ARE OFTEN JUST WHISPERS OR MUMBLED WORDS AND MIGHT EVEN SOUND ROBOTIC. THE VOICE CANNOT BE UNDERSTOOD BUT THE INVESTIGATOR STILL KNOWS THAT IT IS AN EVP IF NOONE WAS TALKING DURING THE RECORDING SESSION AND HUMAN SOUNDING VOICES CAN BE CLEARLY HEARD IN THE BACKGROUND NOISE.