4 ms·
> resulting in lower information density as you get towards the inner grooves It's actually the opposite: highest information density (musical notes played per
by joss82 8y ago
> resulting in lower information density as you get towards the inner grooves
It's actually the opposite: highest information density (musical notes played per surface unit) is in the innermost grooves.
Since linear velocity is lower in the center than the border, the size dedicated to each piece of data is larger in the outermost places, which may increase the quality of songs placed there.
I don't really know if the machine making the disc is precise enough and if the human ear is capable of hearing the difference.
- couchand 8y agoHmm, I would arrive at the opposite definition of "information density" than you, and I'm guessing the GP does, too. Your definition is "musical notes played per surface unit", but I think that's inverted. Taking a musical note here to mean a fixed note length, more surface per note allows for additional expressiveness. You can even "fit more notes in" if the notes are a shorter duration. A time span on the outer part of the record has more groove length dedicated to the same amount of playing time, so it has a higher information density in my book. I guess my definition for density would be groove length divided by playing time.
- kiriakasis 8y agoWith your definition the information density is constant as in the outer part of the disk the wavelength need to be longer to compensate the higher velocity
- joss82 8y agoI see what you mean. It's "temporal information density" then. Also called bandwidth :D