3 ms·
> There are a couple of downsides too, though. The biggest one could be that 200 Hz is a frequency that’s well within human hearing, which probably explains tha
by scintill76 5y ago
> There are a couple of downsides too, though. The biggest one could be that 200 Hz is a frequency that’s well within human hearing, which probably explains that soundtrack in the video—the robot is, as the researchers put it, “inherently quite noisy.”
- mrtnmcc 5y ago200Hz seems a low enough frequency (1.7m wavelength) that they could do active noise cancellation with a small onboard speaker designed to generate a similar sound 180 deg out of phase such that it cancels in far field. Would probably need some DSP to generate anti harmonics as well assuming there are some nonlinearities.
- AndrewDucker 5y agoIf the vibrations are what's holding it on then cancelling those vibrations might knock it off...