Before we are able to comment on the pitch and speed of EVP, it is necessary to qualify where we understand the sender of the message to be. As this is unknown we are forced to make an assumption; if the message shows relevence to the activity of the group, we assume the voice to belong to a discarnate intelligence. If this assumption is correct, we then need to consider how a non-physical being can project sound waves without a voice box. With these restrictions, it should not be surprising that the pitch and speed of EVP messages may be audibly dissimilar to spoken language and why we find them so difficult to understand.
EVP 1: The shrill, fast pace of this EVP is quite unusual. There appears to be an order of events for séances that we have no control over. We have no idea who will communicate, either by EVP or visually and cannot guarantee that those we talk to are able to respond.
EVP 2: This very fast message was captured at the beginning of a seance. At the previous session, a message was given asking for acknowledgment to be made of all regular communicators; to do this Rachel had to make a list. The roll call list at the beginning of the seance, was not received warmly.
EVP 3: The speed at which the "speaker" communicates is approximately 20% faster than normal speech. The content of the message is remarkable and denotes a communicator who is not corporeal, yet able to convey their thoughts in voice. It also makes one wonder what the communicator has experienced post mortem.
EVP 4: The speed and pitch of this EVP is unique, we have many thousands of clips in the archive but no other has the same tonal qualities or speed. We can only assume from the message, that the communicator is testing their ability to be captured on the digital recorder.
EVP 5: The word worzle is a slang term used to denote a rural country bumpkin from the South West of England. The gentleman's thick regional accent and deep, warm pitch are very distinctive.