Dostalisu
.
Inviato Fri 18 Nov 22 @ 9:45 am
Adion
A vinyl record only has one groove
Inviato Fri 18 Nov 22 @ 11:07 am
Dostalisu
I do not know what it is called correctly. The number of pits per circle.
That is, how many microsteps the needle makes in one revolution. As a comparison of optical encoder expansion.
That is, how many microsteps the needle makes in one revolution. As a comparison of optical encoder expansion.
Inviato Fri 18 Nov 22 @ 1:03 pm
PhantomDeejay
Infinite
Inviato Fri 18 Nov 22 @ 1:12 pm
Adion
You can calculate some limit based on the size of the vinyl molecules. (And I think this was surprisingly actually limiting either time or dynamic range resolution)
Inviato Fri 18 Nov 22 @ 1:50 pm
DJMBR01
Inviato Fri 18 Nov 22 @ 2:21 pm
Tear Em 'Up
Dostalisu wrote :
I do not know what it is called correctly. The number of pits per circle.
That is, how many microsteps the needle makes in one revolution. As a comparison of optical encoder expansion.
That is, how many microsteps the needle makes in one revolution. As a comparison of optical encoder expansion.
That number will not be consistent for the entire record. The process is called linear track velocity. At the outer edge of an LP record, the linear velocity is 0.509m/s (20 inches per second), and this reduces to 0.196m/s (8 inches per second) on the innermost. Thus we can say, the maximum recorded velocity on a 33⅓ RPM LP will never exceed 50cm/s, and even this figure is only achievable on the outermost groove.
Inviato Fri 18 Nov 22 @ 4:09 pm