Alderbank
Critical Thinker
Let's get back to the test... What would success be for you and what would be failure? How would it be decided?
Your enthusiasm is wonderful flaccon and I'm really looking forward to working with you but you are so excited that you change the game with every post!
There is no need for a test to see if there is anything worth investigating. I have already agreed it is worth investigating and 700 posts in a couple of days confirms that.
Crucially you never say objectively what outcome would be success and what would be failure. I have no doubt you will play me a recording and I will hear voices. That will not indicate a success. Nor will anything that relies on my opinion
Think about all your ideas, and those of others such as Pixel42 above, consider which would best demonstrate that spirits exist and have voices, and decide what is success and what is a fail. That is essential. The good news is that forumites here are both able and willing to help with that. Once we agree on a fair test we are all set to go.