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Para-InvestigationsPara-Investigations Text Box: EVP experiments Try and opt for a quiet time of the day or night when noise contamination is at an absolute minimum. When choosing an area to record, be sure to take into account any possible noise that may occur and always look out for items such as televisions, computers, mobile phones and other electrical appliances that could cause interference. Reducing noise contamination and the risk of electromagnetic or radio interference will make the analysis of your audio recordings much easier and will help to keep your experiments controlled. Be sure to ask everyone who is taking part in your experiment to remain as quiet as possible. Waterproof jackets, the shuffling of feet on wooden floors and even so much as somebody breathing heavily can provide much contamination to your recordings. Always take the common sense approach Text Box: Electronic Voice Phenomena At Para-investigations, we use MP3 players locked off in a room to record EVP, we also use the sound recording devises on video recorders. We will be posting onto the site, so please keep an eye for any new material, follow link for exiting footage Text Box: Audio Analysis Any audio recorder that has a headphone socket can be connected to a desktop or laptop computer that is equipped with a sound card. Connect an audio lead from your recorder's headphone socket directly to the microphone socket on your computer and you are ready to go. Many of the newer digital recorders on the market have the ability to load files to a computer via a USB port. Using earphones during analysis is really useful to detect any paranormal noises, although, please be aware of any sudden loud noises that occur during your recordings which could cause damage to your ears. You will find that over a period of time you will develop an ear for hearing the distinct fast rhythm of an EVP voice and will naturally start to focus on other levels of noise within your recordings that you never noticed previously. We liken this to listening to someone that speaks with a foreign accent, you may find them difficult to understand at first, but the more you hear them the more you get used to the distinct nature of their voice. Text Box: EVP File Classification It is important to label each EVP file depending on the clarity of the voice. EVP researcher Dr Konstantin Raudive developed a method of classification in the 1970s that was far too complicated to remain practical. This was reviewed by researcher Sarah Estep who developed a much more useful classification system that is now used as standard with EVP researchers around the world. The classification system is as follows: Class A: A voice that can be understood without the need for headphones and that people can generally agree on the content. Class B: A voice that requires headphones to hear and not everyone can agree on its content. Class C: A voice that requires much filtering and even by wearing headphones nobody can agree on its content