yamaha tf3

Hello, I am very new to the game and am trying to connect my soundboard to OBS to use as a audio input but OBS doesn't register it as a valid input (it doesn't appear on the list) Do i need some specific driver before it will recognise it? Any help would be really appricated. Thanks in advance

Hello, this is Paul. My object is to stream audio and video using obs. Let me explain my trouble, I use a Yamaha tf3 to capture the audio coming from the stage, and then I send 2 cables xlr through a matrix output 1 and 2 to another audio interface Behringer UMC 202 HD, which is connected via...