Difference between stereo and mono audio
In: Technology
Mono has a signal for one speaker. If you have more than that (e.g. two earbuds, or a surround-sound setup), every speaker will play the same signal.
Stereo has two signals, left and right. That way, a movie can have the character on the left side of the screen be louder through the left speaker, an album can have the guitar sound like it’s to your right, etc. Or they can have a sound start off being only on the left, then have it be loud on the left and quiet on the right, equal on both, quiet left and loud right, then only right, so it’ll sound like it’s moving from one side of you to the other.
“Surround sound”, “5.1”, “7.1”, etc audio is the same thing but with even more signals, for a larger number of speakers (e.g. front left, front right, behind left, behind right, center), so you can have videogames where when an enemy is behind you the footsteps play only from the speakers behind you, etc.
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