Paranormal Spirit Box - app for communicating with spirits.
EVP Spirit Box - app for communicating with spirits. It contains three different soundbanks, does not contain whole words or phrases - only sounds and phonemes of various languages, including forgotten ones.
It is worth considering that this is a tool for researchers of the paranormal, you must understand what you are doing.
Also remember that the spirit you have connected with may not know your language and what seems to you to be nonsense is just the words of another language.