SoundEffect = No Sound

I have created simple android project to test audio playing.
I use SoundEffect to play sounds.
I tried XNB and WAV files. Nothing works… No sound.

Can someone explain me how to play sounds on android?

ps: My test project!11762&authkey=!AO2DUMfbdX_6rec&ithint=file%2Czip

Yesterday, I got updated versions of xamarin and monogame.
And problems with sounds are gone.