Rational resampler question

GNU Radio
1

Hi,

I’m trying to convert a flowgraph from grc to c++. In grc there is a
rational resampler block and a rational resampler base block. I could
not find a c++ version of the rational resampler block. Does a c++
version exist? I don’t much about either but I tried to use the rational
resampler base block in both the grc flow graph and my c++ code and I
could not get it to work in either. What’s the difference between the
two?

Stephen

2

The rational resampler is part of BLKS2 which is python only. I’m
currently working on porting blks2 over to C++ so the API will not be
python only, but there is a lot of python code it is built on that
needs to be converted first so it could be a bit. You could just do it
yourself, all the rational resampler block does is make it easier for
you, http://www.dspguru.com/dsp/faqs/multirate/resampling , this is a
good starting point if you need, or you could look at the code for the
rational resampler and follow it.

Also the resampler base block, I believe is used by the python block
and cannot be used by itself.

3

So I suppose if I do the same thing it would work right?

Only one way to find out, try it.