MassBox is a Ghostbox created for ITC research with 2 reversed sound banks with sweep rate from 75 ms to 650 ms.
The button in the middle to turn on/off the app while the plus and minus button to control the sweep rate speed
We believe that Spirits can manipulate sounds , the theory behind using reverse sound banks is you should not hear a forward word or sentences unless something manipulate those banks for this to happen.
Just like any ITC app that use sound banks , try the app few times so you can differ between the sound bank and actual EVP . picking up evp takes ear practice , listen close and always record your session.
If you are beginner i would highly suggest you start with minimum rate speed for the sound bank.
This app is free please experiment and feel free to leave feedback .