Every story and comment from the Hacker News API, in a layout borrowed from 2001.
A comment on Audio Processing for Dummies. Parent comment
The magic is the linearity of the signals. They are additive. The different signals pass through the same stream of samples without interacting.
If you add volumes from sine wave in 400 Hz to sine wave in 300 Hz, you can transfer them together in a stream of samples , then separate them later.
Mathematically: f(at + bt) = af(t) + bf(t)
There are no comments on this comment yet.
The magic is the linearity of the signals. They are additive. The different signals pass through the same stream of samples without interacting.
If you add volumes from sine wave in 400 Hz to sine wave in 300 Hz, you can transfer them together in a stream of samples , then separate them later.
Mathematically: f(at + bt) = af(t) + bf(t)