CLASS AEVPThis type of recording is very clear.people in the immediate vicinity can make out of the words used by the spirit, and its its heard with your undaided ears. There is no need to play back the audio. Class a evp usually go with highly active intelligent haunting. However your recorder may not the ghost voice ghostly activity’s has only captured a class A evp a couple times. CLASS B the investigator may not hear it in real time it’s heard during the audio playback. Most cases, you can make out of the words after listening to the data a few times. You shouldn’t have to strain to understand the words. Many times the class b is a name laugher screams growls or humming. Ghostly activity’s. ClASS EVP C recording may sound like whispers you have to use high powered audio filters and amlipers to get something understandable from the data. Ghostly activity’s captured these quite a bit but we don’t publish them.