[Discuss-gnuradio] moving_average_ff

[Wolfgang Buesser]

I am making my first steps with gnuradio.
I am calculating the cross-spectrum of the two-channels of my
soundcard.
Now I want to reduce the noise in the spectrum by averaging. To this
end I need a moving average of vectors (=average on a per index basis).
Reading the doc of v3.7.13-4  moving_average_ff has been extended to do
this. I am using v3.7.11 as available for the most recent ubuntu.
Apparently the grc-block can't do this. I have tried to add it
'manually' to the .py-code but I get an error message concerning the 4-
th argument. So this feature does not seem to be part of v3.7.11.
Can anybody tell me with which version moving_average_ff has been
extended to treat vectors?
Do I have any choice other than compiling this version by hand?

Thanks,

Wolfgang