DLNA: no stop controls?

Hi all
My DLNA speaker doesn’t have a stop or pause control.
Thanks to the fine people in this thread I found this out.

Now my question is how one should ‘deal’ with that.
Is there a way to write a service that will play a 0.01 second empty sound in order to bring my speaker into idle mode?
At this moment, if I start internet radio, there’s no way to stop it.