3 ms·
Hmm, at least with an audio waveform one can have a DC offset wherein the average is not zero.
by stallmanite 6y ago
Hmm, at least with an audio waveform one can have a DC offset wherein the average is not zero.
- alanbernstein 6y agoThe DC offset does not manifest when the waveform is translated into sound, which is an actual propagating wave, the appropriate analogy to light.
- phonethrowaway 6y agoparticle/wave duality. it means neither fully encapsulates "light".
- sharpneli 6y agoAlmost but not quite. With light the electric field can go negative and the average is generally 0. With sound in air the pressure component has a ”DC” offset of 1bar and it cannot go negative, you will just get nonlinear effects when you start nearing that limit.
- deleted 6y ago[deleted]
- macawfish 6y agoThe DC offset can be considered as approximating a low frequency component that is so low frequency, relative to the measurement window, that it appears to be constant. I think in the case described here, the zero average amplitude thing has to do with something a little bit different.