On Thu, Sep 8, 2016 at 7:08 PM, Pavan Yedavalli <psy2...@columbia.edu> wrote:
> Maybe the Head block is a good option - it looks like I should put that in > between the complex_to_mag and the file_sink blocks, right? > You can put it anywhere as long as you understand how much data is flowing through that point and adjust the numbers to match. > And there are two values, num_items and vec_length. By the documentation, > it seems like num_items should be 1024 to match the complex_to_mag's vector > length of 1024; > No, that creates an item size mismatch. A vector length means the items in the stream are arrays of numbers, and this needs to match across all blocks in a chain if they're not converting something (like stream_to_vector). What you want is 1 item of vector length 1024. In order to have 1024 items of length 1, you would have to follow the FFT with a Vector to Stream block. But even though the file output would be the same, that wouldn't particularly make sense as a way to treat the output of a FFT.
_______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
