If you need to connect audio tracks, you can use a simple cat
cat in1.raw in2.raw > out.raw
Likewise, you can connect as many files as you like, and you can in portions in several passes, creating intermediate ones.
cat in1.raw in1.raw in1.raw > out.raw
Thus, we can replicate a fragment (for example, silence or a monotone signal) for the time we need, or loop a small audio fragment.
