Re: Is there a way to change the number of taps of the FIR filter in GNURadio while running?

Jay,

The difference in trying to change the parameters at run-time between
the Low Pass Filter and the Low-pass Filter Taps is that the Low-pass
Filter Taps is a variable where the parameters are computed at compile
time, whereas the Low Pass Filter has callbacks to allow changing
parameters at run-time.

Here is a flowgraph which works:

https://wiki.gnuradio.org/index.php/File:Filter_taps_demo.png

Note: The beta paramater only applies to the Kaiser window.

--
Barry Duggan KV4FV
https://github.com/duggabe