Originally posted by: Crappopotamus
hmm with my sennheiser 497s im not noticing too much difference. if i listen to a song for a while with it on, and turn it off, it seems to turn a little harsher? what am i supposed to be hearing...
Well, it is an auditory illusion.
When you hear similalr sounds in each ear, you braiin takes the time arrival, tonal, and volume differences to place the object. that is how you can tell where a sound is coming from.
Generally a stereo recording when played back on speakers will recreate this illusion.
Your right ear hears the direct sound from the right speaker, and
the sound form the left speaker,
at slightly lower volume,
tonally chaneged (your head blocks the left speaker from your right ear and chanegs it tonally slightly)
at a slight delay (the left speaker is slightly fartur away from your right ear than your left.)
repeat this for the other side
got it?
With headphones you only hear the left channel in the left ear and right channel in the right ear. The result is that you can only hear things from the left, the right, or sort of inside your head.