(1) cd src ; ./compile.sh

(2) ./denoise_training signal.raw noise.raw count > training.f32

    (note the matrix size and replace 500000 87 below)

(3) cd training ; ./bin2hdf5.py ../src/training.f32 500000 87 training.h5

(4) ./rnn_train.py

(5) ./dump_rnn.py weights.hdf5 ../src/rnn_data.c ../src/rnn_data.h