I create a software to concatenate wav files into one I use this code
using Alvas.Audio;
private void JoinWav()
{
string[] files = new string[] { "file01_01.wav","file01_01.wav"};
AudioCompressionManager.Join("res.wav", files);
}
It's working for me ,but i use trial of Alvas.Audio is there a way to create something like this free?