The first EVP below gave us a clue as to why we had so many examples of our voices forming sentences that we are certain, we did not speak but it is not a straightforward explanation for all anomalous transformations.
Whilst we are in conversation, our voices are mutated to deliver an out of context message, logically we might assume that the sound waves are modulated. However, we have examples of EVP seemingly of our voices when we were neither present, or talking, this rules out modulation.
Obviously without having a physical voice box, the sender is not able to transmit physical sound waves, can we therefore presume that is it a physical wave that we are recording? Possible alternative explanations are mind bending and include super-psi imprinting but that doesn't define who the sender may be.
EVP 1: This was the reply to Tracey when she questioned a communicator on how they would use the energy to provide messages. Whether they are referring to the modulation of vocal sound waves, brainwaves or environmental sound waves is unknown.
EVP 2: Rachel's voice is hijacked most animatedly by an unknown speaker who is describing the appearance of other communicators in transfiguration. We have numerous EVP describing a queuing protocol; they must wait their turn to come forward to be seen.
EVP 3: Tracey's voice in this clip is remarkably clear but we are certain that at no point were these words spoken whilst recording. The very frank way that such a strange sentence was delivered is in itself odd.
EVP 4: For a period of 5 years, Rachel infrequently reported the sensation of someone looking through her eyes at members of the group during séances. This clip was captured in her voice but if you consider it being spoken by a different entity, it would confirm the reported phenomena. The seance room is well lit and always with red light.