Another thing to consider is the playback speed. I only know of Sonique player which has it built-in, and Winamp must have some plugin to change the speed of playback. I do not know how to measure tempo but it is easy to realise that the tempo of the interview is fully awake beta. Lowering the playback speed will make the voices sound different but it will lower the tempo, closer to that of sleep brainwaves.
[b] This topic now is locked and continued here in Part II: “Possible Holy Grail technique - Part II”
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