HackerTube 中文?

D/A and A/D | Digital Show and Tell (Monty Montgomery @ xiph.org)

FL StudioYouTube ↗

Further reading 1

What becomes visible when you change representation? →An average, a spectrum and a geometric diagram each foreground a different structure. Before asking which view is intuitive, ask which comparison you need it to support.This video helps answer · Which frequencies are present, and how was the signal recorded?

Caption notes

Band-limited signals can be reconstructed smoothly from samples. Oscilloscope demonstrations distinguish sampling from quantization and explain what dither changes.

Original passages · 6
it's only got a value right at each instantaneous sample point
D/A and A/D | Digital Show and Tell (Monty Montgomery @ xiph.org) · ▶ 6:19–6:37
there's only one band limited signal that passes exactly through each sample point
D/A and A/D | Digital Show and Tell (Monty Montgomery @ xiph.org) · ▶ 6:48–7:29
dither is specially constructed noise that substitutes for the noise produced by simple quantization
D/A and A/D | Digital Show and Tell (Monty Montgomery @ xiph.org) · ▶ 12:09–12:28
the signal is already band limited band limiting it again doesn't do anything
D/A and A/D | Digital Show and Tell (Monty Montgomery @ xiph.org) · ▶ 19:39–19:55
a sampled signal is entirely different
D/A and A/D | Digital Show and Tell (Monty Montgomery @ xiph.org) · ▶ 6:19–6:26
the sampling step is perfect it loses nothing
D/A and A/D | Digital Show and Tell (Monty Montgomery @ xiph.org) · ▶ 9:38–9:47

Hacker News comments

View original on HN ↗