There are many ways to play samples from an Iannix trigger, but Iannix alone makes no sounds and does not use audio directly. It sends out messages (MIDI, OSC…) and depends on other programs to generate the sound (see the ./Patches folder in the Iannix distribution). There are other threads in this forum that discuss using Max, Max-for-Live, Supercollider, and Pd with Iannix.

hth,
–Bob.