3 ms·
> an SDR is that a sound card takes real-valued samples, and an SDR takes complex-valued samples Coming from a DAW background this concept was incredibly inter
by adzm 2y ago
> an SDR is that a sound card takes real-valued samples, and an SDR takes complex-valued samples
Coming from a DAW background this concept was incredibly interesting. I am curious if stereo audio has ever been represented in this way, or if it is generally just used for the half sample rate?
Actually thinking on this now I guess that doesn't really make sense. But still really interested in this alternate view of sampling waveforms.
- wrs 2y agoTesting has shown that humans can't hear phase differences, unlike radio demodulators, so there's no real use for giving a sound card complex numbers. (Before someone replies about snare drums, 3:1 rule, etc. — of course if there are phase differences in the audio before you mix it, it will cause audible artifacts in the mixing process. Which is why there's an effect called a "phaser".)