4 ms·
I don't have a direct answer. I'm not sure how the signal is synchronized. But I will say that the tonearm of a record player exhibits the same behavior, yet th
by gugagore 5y ago
I don't have a direct answer. I'm not sure how the signal is synchronized. But I will say that the tonearm of a record player exhibits the same behavior, yet the signal on a record is not modulated.
- Tabular-Iceberg 5y agoYes, but audio records don’t have to encode frequencies below the human hearing range, whereas a video one should be capable of showing multiple consecutive black or white frames. The pickup doesn’t detect groove depth, it detects change in groove depth. My guess is that they used AM since all you’d have to do was amplify it and send it straight to the lightbulb, no demodulation necessary.