Hi!

I played around with sideband modulation using the hilbert~ object and was wondering about the sideband attanuation performance. Here is my patch:

In the picture below you see my modulated output in the first pane and the demodulated output in the second pane. Testsignal is a 440Hz sine shifted by 2000Hz.

what I dont understand is why is there only 40 dB attenuation between the 2 Sidebands?

Is this because the hilbert~ isnt perfect 90° over the frequency range?

I tried to implement hilberto~ from this blog https://www.katjaas.nl/hilbert/hilbert.html on the very end you see the Max patch

but its output was not more, but at least, decent glitches... : I dont get what I did wrong here.

any input is appreciated,

Seb