Can my first generation airport express be used with airplay using iOS 7.1.2? It stopped working after one of the big iOS updates.

I have a first generation Airport Express. Although it appears on the Airplay screen on my iPad and iPhone 5 (using iOS 7.1.2) the music does not play through the Airport Express. The Airport Express does function correctly when I stream music via iTunes from my desktop computer, so I know that the device is working. The Airport Express firmware version 7.6.4 is up to date.