EVP- Electronic Voice Phenomenon- anomalous voices or other sounds, often purported to be of paranormal origin, heard on electronic audio recordings but not by people at the location at the time of the recording. - Wikipedia.
Often people confuse Disembodied Voices with EVPs. The difference is that you did not hear the EVP.
Here are a few of the EVPs that we have collected.
Nevada Historical Society
702_0039- 2-45-03-- did she die of an illness -- cough
702_0039- nhs- 2-06-30 keeping evidence on them then no
702_0039-nhs- 30-37-- whispers
702_0039-nhs- 30-37-hear things
702_0039-NHS- 39-00- Paul
702_0039-nhs-2-47-10 paul heard with ears
702_0039-nhs-3-01-48 i just wanted you to
702_0039-nhs-crashes then cries
702_0039-nhs- 39-03-- library- paul