Could you at least tell me what makes each speaker know what to play and when to make it rotate like that?
@donnatella: Like
@villiandave said, it's all about the Stereo Spectrum. Â This particular trick is called "panning". Â
www.dummies.com/how- to/content/using-pan ning-in-your-home-re cording-mix.htm 10k ft explanation is that recordings are done in "tracks".  Lead vocals, background vocals, each instrument, they're all recorded independently.  You don't generally record in the studio as a "band", you record your part independently.  When those tracks get "mixed" together, the audio engineer can easily make it sound like any instrument is left, middle, center, front, back, etc.  Once the engineer has it mixed the way they want, they "cut" the song.  (That term goes back to when they actually cut the grooves into the record.)  So now you put your favorite song on and your sound system sends the signals to the various speakers.  The speakers are just turning the signal into a sound wave, it's your media device that interprets the cut and sends the signals out.   Again, this is really high-level.  I'm not really much of an audiophile and will definitely defer to Dave or any of the other folks around here that play with sound. 4951