The voice is a “cool” medium, to invoke Marshal McLuhan’s famous distinction between types of media, providing breathing space within its low-definition information for receivers to “fill in the blanks” for themselves, making the voice more interactive and involving than the body itself. This is why Pythagoras taught behind a curtain – so the students would absorb his lessons more fully, without the diversions of the eye.
– Dominic Pettman, Sonic Intimacies







