3 ms·

why not low pass filter / decimate the wave form to remove aliasing ?

• MadDemon 3y ago
  You have to down sample by a lot (easily 10-100x). That would essentially remove a lot of the information in the signal. If you low pass filter you essentially remove all the peaks and the signal looks much "quieter" than it actually is.
  • chrisjj 3y ago
    Agreed. In the worst case, the audio is simply a high-frequency tone - which the LPF removes, leaving the plot showing silence.
    • wiz21c 3y ago
      ahhh didn't see that one. Perfectly makes sense ! Thx for explaining.