Driving Audio Device in Simulink Desktop Real-time

The Audio Writer block does not work in External Mode with Desktop Real-Time.

Is there a way to drive the audio output otherwise for Desktop Real-time?

[Walter Roberson]

Are you referring to https://www.mathworks.com/help/dsp/ref/audiodevicewriter.html ?

[Spencer Chen]

Yes. This block won't compile in External mode for the Desktop Realtime (sldrt) target. Is there a way to access the audio out using Desktop Realtime?

[Walter Roberson]

There is a small chance that the audio board will show up as a possible output if you use the Analog Output block. But I suspect it will not, so you would probably need a custom I/O block.

[Spencer Chen]

Good idea. I just checked it out on 2 different machines, one with internal audio out, and another with SoundBlaster. No such luck here. I don't know how to write custom IO blocks. So it looks like I'll need add hardware.

[Spencer Chen]

Having Mic input and Audio output for Desktop Real-time would be great, if Mathworks' development team is listening in. Saves me having to get additional IO card for simple Analog IN and OUT.