Hello Moritz, Hello List, I might have found some unintended behaviour in gr-specest. I claim that the content of const std::vector<float> &window is not passed in the constructor, if called by the GRC block. I cannot explain why and ask for hints on how to correct the behavior. I could supply a patch then.
Consider the enclosed diff against the git version of lib/Welch_impl.cc, which basically adds some debugging output. Running this with the original GRC block, I get the following output: Window created; size: 2048 (which is my FFT size) => the make(..int window_type..) function works correctly specest_check_arguments_impl::window.size() = 0 => this make(..., const std::vector<float> &window) does not get the window's values Constructor: 0 => the constructor(..., const std::vector<float> &window) does not get the window's values, either I suppose that this has something to do with the call-by-reference of const std::vector, but I cannot explain why. Can you confirm this behavior? Could you please help me finding a solution for this an let me fix it? Best regards Stephan Ludwig Robert Bosch GmbH Corporate Sector Research & Advance Engineering, Communication Technology (CR/AEH4) Renningen 70465 Stuttgart GERMANY www.bosch.com Tel. +49(711)811-8809 Fax +49(711)811-1052 Mobile +49(172)5630639 stephan.ludw...@de.bosch.com Registered Office: Stuttgart, Registration Court: Amtsgericht Stuttgart, HRB 14000; Chairman of the Supervisory Board: Franz Fehrenbach; Managing Directors: Dr. Volkmar Denner, Dr. Stefan Asenkerschbaumer, Dr. Rolf Bulander, Dr. Stefan Hartung, Dr. Dirk Hoheisel, Christoph Kübel, Uwe Raschke, Wolf-Henning Scheider, Dr. Werner Struth, Peter Tyroller
welch_impl.cc.diff
Description: welch_impl.cc.diff
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