A vinyl record is a copy of a musical recording. How can a series of grooves or channels cut into a peice of vinly medium reproduce different instruments and sounds precisely to our ears? Apologies if this is this more of a medical question or sound engineering question. I understand how the music is cut and transferred to a vinyl medium but how do we know it’s a piano vs a distorted guitar? How can these primative grooves hold such information or does every soundwave hold that specific information? A digital stream or even a cassette tape makes more sense than how a vinly disc plays back music of different genres.
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When you hear a note, a bone in your ear wiggles. That bone is attached to a nerve and it sends the same wiggly signal into the brain. The two different notes can be differentiated because they are different frequencies.
> how do we know it’s a piano vs a distorted guitar?
More than just the frequency, there’s a LOT of information that comes in with sound. It’s really a mix of all the various frequencies with all the behaviours and traits like… uh… echo, fade, cut-off, distortion… Man, I dunno, there’s a lot there. It’s like describing all the colors and hues, you can go on and on and on.
>How can these primative grooves hold such information or does every soundwave hold that specific information?
Because sound is nothing more than vibration. A set of wiggles. And that can be recorded with only 1 dimension, like a needle going back and forth. …You know those grooves were traditionally recorded directly from the source, right? If you take some wax and a needle and a big ol cone, and scream into it, the wax RECORDS your scream. And allllll the nuance and detail of that vibration gets etched in.
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