Aurélien STRIDE

Life & Works

A « real » video LP turntable!

by webmaster

Video turntable

DAC

With a DAC and a dual-signal multiplicator (signal1*signal2), we can easily stream video on a vinyl (not with a huge quality yet, but calculus may be redone).

Table of qualities:

Bits per signal Nb values per signal Hz bitrate Mbps Mbpm Total MB on 30 min side
8 256 10000 0,1526 9,16 34,33
10 1024 10000 0,1907 11,44 42,92
12 4096 10000 0,2289 13,73 51,50
16 65536 10000 0,3052 18,31 68,66
24 16777216 10000 0,4578 27,47 103,00
8 256 15000 0,2289 13,73 51,50
10 1024 15000 0,2861 17,17 64,37
12 4096 15000 0,3433 20,60 77,25
16 65536 15000 0,4578 27,47 103,00
8 256 20000 0,3052 18,31 68,66
10 1024 20000 0,3815 22,89 85,83
12 4096 20000 0,4578 27,47 103,00
16 65536 20000 0,6104 36,62 137,33
20 1048576 20000 0,7629 45,78 171,66
24 16777216 20000 0,9155 54,93 205,99

The best would be to find out 700 MB on a single side… But frequency is limited by head sensitivity and DAC will be limited by LP wear (but if we use a laser head instread of a sapphire ?)…

Despite all, if we consider LP user still having their CRT TV, a low quality is enough for displaying.