How to render to wav using bass-net?

Question

C++ / C#

How to render to a wav file using bass-net, like it is done in sequencers like fl studio, reaper, and even the same adobe audition? To be precise, I need an algorithm on how to write other wav files to a wav-file so that they can sound there both together and separately, so that it can be controlled over time. that is, for example, we write in wav the sound of one drum, after 100 milliseconds the sound of another drum, and after another 100 the sounds of the first and second together.