I´m working with a compact RIO, specifically with its analog output NI 9263. So I have the NI 9263 wired with a amplifier and a speaker and I want to play a wav file on it, is it possible?
Yes, you can do it. But two more points for your reference:
9263 is zero-order-hold AO, no output smoothing filter availabel. That means it will introduce unexpected high frequency harmonics (N times of sampling frequency).
Where is the music data from? If the music source is from host PC, you will need to send the data to FPGA end with DMA. But not all of the cRIO controllers can support DMA from host (cRIO controller) to FPGA (cRIO chassis). If you put the music data inside the memory of FPGA, it will be very convenient for coding. But the memory inside FPGA is very limited, you can not put long data inside the momory.
