How do I write a .wav file to analog output?

[monkeys]

I am using a PXIe-1073 Integrated MXIe daq with an analog input/output card (NI PXI-4461). I have a .wav file saved to my desktop and I want to play the the .wav file through the analog output card to drive many speakers (10+). I also want to be able to change the voltage level of the signal. I looked on a bunch of threads but none seem to provide what I am looking for.

I iniitally thought I had to use the DAQ Assistant to generate the signal, but then I realized there was no option of using a .wav file and changing the voltage level. I have read that I need to convert it to a TDMS file then write it to the output channel but I still don't know where the voltage change would fit in. At this point, I am just confused at which approach I need to take.

Any help would be much appreciated.

Thanks,

Connor

[Hooovahh]

Use the Sound File Read Simple function under the Graphics and Sound >> Sound >> File palette.  This reads the file and returns a waveform.  That waveform data type can be wired to a DAQmx Write function giving it single channel multisample output.  Relativly easy and there are examples shipped with LabVIEW showing each half, reading the file, or outputing a wave.

As for amplitude just multiply the Y component of the waveform by a multiplication factor.

[Dennis_Knutson]

I'd love to see the link where it was recommended to save to a tdms file. That would be something to add to the rube goldberg thread.

[monkeys]

Alright so you are saying something like this

[monkeys]

Not sure if the picture sent

[monkeys]

My bad, here is the picture

[monkeys]

here is the picture, sorry for the amount of posts to get this

[Dennis_Knutson]

You still have to add the configuration functions for the task - create channel, timing, etc.

[monkeys]

Alright, this is what I have so far. I had an error (200462) but I looked on another forum and found that I can fix it by putting "write data" twice.