noise suppression with librespeaker in RespeakerCorev2

Have you added parameter “–std=c++11”? Please try this:
</s>g++ main_vep_nr_test.cc -o main_vep_nr_test -L/usr/local/lib -I/usr/local/include/respeaker -lrespeaker -lsndfile -fPIC -std=c++11 -fpermissive<e>