Simple signal processing with python function call?

I like to call an external programmed python function inside of GRC
decoding a slow byte stream.

Therefore I made a simple experiment:

See
http://elho02.fbe.hs-bremen.de/~hartje/GRC/func_versuch.grc

Signalsource with samp_rate 3200
Throttle 3200
VariableSink V2
Variable Text BOX V2 (showing the values) (decimationrate=1)

Constant source V2 * 3
Scope Sink

I planed to exchange the “V2 * 3” to an external python function to

obtain a simple signal processing routine in python

The update rate of the constant source is very slow.

Is there any better way to get a simple python extension for signal
processing in GRC?
What else can be done for higher update rate of the variable in GRC?

mit freundlichen
Grüßen
M. Hartje

Prof. Dr.-Ing. Michael H.
Labor Hochspannungstechnik / Labor elektrische Messtechnik
Neustadtswall 30; D-28199 Bremen
Tel +49 421 5905-3444 FAX +49 421 5905-3476

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