How can most music that’s playing from headphones have separate sounds for each ear?
In: Technology
Think of it conceptually similar to how music is recorded, with each instrument having their own channel (or often more, with the drum kit each drum and cymbal it’s own channel). When the song is mixed, these many input channels are then output to two output channels, a left one and a right one, each with their own volume balance per instrument, creating differences between the channels. Your music player can read this stereo format and then knows which channel to put to which ear, so a guitar solo could end up only on your left ear if the mixer/musician wishes to choose so. I believe most smartphones I believe also have a mono option which levels the two channels equally (or maybe just play one channel on both ears, I don’t know the details).
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