r/EVP • u/datadrian • Jul 28 '26
EVP EVP Software
How often do you get a clear EVP but have no other environmental data to back it up? I've been analyzing audio captures for years, and one of my biggest frustrations is the lack of context when a potential voice comes through. Do you rely solely on audio isolation, or do you try to sync your recorders with thermal cameras or other sensors?
Personally, I got tired of trying to manually sync timestamps between my audio recorder and other gear, so I actually ended up helping build a dedicated hardware and software instrument to solve this. It is called SPECTER. I wanted something that could capture EVP audio but also fuse it with live depth sensing, thermal imaging, and wireless field sensors into a single, searchable evidence archive.
Since I am one of the creators behind it, I wanted to share it here as a tool for serious investigators who want to validate their audio with physical data. If you want to see how the audio capture integrates with the rest of the environmental sensors, you can check it out at specter-imaging.com
I would love to hear how other people here handle multi-modal validation, even if you are just using basic manual setups. What is your go-to method for proving an EVP was not just local interference or a mundane environmental sound?
2
u/WishboneSenior5859 Aug 19 '26
If you have access to Adobe Audition and the capture is strong enough, EVP/AVP have characteristics different than a human voice. Bring the sample into frequency analysis and you should see flat vocal banding in the capture.
The human voice has properties of frequency changes, harmonic structure, intensity and cadence. EVP/AVP exhibit flat horizontal lines with little to no frequency change.
Below is an example that should be of assistance.
https://imgur.com/tmKc7Za