I made a simple example with a cosine and a delayed version of that
a multiplier, and observing the output together with a slider that
changes the delay dynamically.
However i do not see any change (eg, elimination of the dc component
when delay ~ pi/2).
Looking at the code of the block gr_delay it shows that the delay can
and this results essentially in a call to set_history() in gr_block.
Looking further into the set_history() method, it sets the private
The question is: does the dynamic change of history have any effect in
What happens in the guts of the block when d_history changes?
and why don’t i see any effect in the example above?