Hello,

I've seen in the code (in the "mapping0_forward" function, in mapping0.c) that a "scale_dB" value (obtained dividing 4.f by the block size and converting to dB) is added to each FFT coefficient previous to any calculation of the masks, floors... Could someone please tell me what is it's purpose?

I apologize if it's a very basic question, but I haven't been able to find info about it.

Thank you.