2007-02-24 14:47:28 · 2 answers · asked by Connie L 1 in Science & Mathematics ➔ Chemistry
The waves of pressure changes interact. Each person talking used their vocal cords to modify the motion of the air in their voice box. This produce the pressure waves which leave the body through the mouth and nose.
The waves spread through the atmosphere from each talker (hummer, singer, person clearing their throat, sneezing, etc.). When the wave meet, they interact. The ear picks up the waves (interacting or not) and then the brain interprets the noises.
2007-02-28 12:52:13 · answer #1 · answered by Richard 7 · 10⤊ 0⤋
The pressure changes are ripples in the air, which have direction. And it's a property of filters to be able to sort out frequencies, which is what the cochlea of your ear does.
2007-02-24 22:51:48 · answer #2 · answered by Scythian1950 7 · 0⤊ 0⤋