One area of EVP research that is often debated is whether the audio captured should be enhanced and manipulated or not. A researcher may choose to enhance their audio in order to make the words heard clearer or to filter out background noises.

The problem with doing this is that if you are intentionally manipulating the audio to make it sound more like the words you think it sounds like, then what you're left with is your ideal interpretation of your own subjective perception of what that EVP should sound like, not a true representation of what it sounded like at the time it was captured.

It's the audio equivalent of distorting a photo or video until it looks like what you want it to look like. Case in point: you could also manipulate the audio to sound less like words, which would also be an untrue representation of the sound.

EVP recordings...