Personal PK is certainly one potential explanation for EVP. Perhaps one way to think about it is that there are really two things going on here. The first is creating a recording which anyone can hear and which produces general agreement as to its contents. This is what you might call a Class A or a Class B EVP. The point of these is that many can easily hear the words and there is little or no debate as to the contents. There is also little or no manipulation or distortion required in order to hear what is there. In these cases, something interesting is being recorded, but how? In this case a PK imprinting process makes sense.

The second thing is how listeners perceive the recordings. In far too many cases they are not Class A or B quality recordings. They are not easily heard and often are manipulated in various ways, even including reversing all or parts of the recordings. In these cases, it might be more reasonable to suggest that individual perception is at work. And this would explain why different people hear different things as well as why even the same individual hears different things on the same recording at different times.

Isolation experiments, such as recording in Faraday cages or removing working components might be quite useful. It is also useful to perform spectrum analysis on these recordings to see if there are any hints as to the true source of what is heard. Spectrum analysis is only useful if the recordings are quite clean, with low noise and high signal levels. In other words, are Class A or B recordings.

While it there is no model that will enable science to determine the true source of these sounds, some intriguing controlled studies have thus far shown that it is possible for living people to produce these recordings using what appears to be personal PK. When you include the idea that some of this may be motivated by information from external sources, you have a reasonably good explanation for what is going on here, including how some people seem to get communications that are later found to be correct. It would also explain why conversational EVP sessions are possible – because EVP operators are in fact unknowingly talking to themselves.

This may not be a popular idea, but it is one that fits the data. And for the moment, that may be the best notion available.