My Itunes stopped playing music recently and I don't know why. I have been importing my CDs that I owned for many years and I have used Itunes since about 2008. Now they're not audible.

I can see the song titles across the top and the timer going as if the song is playing. However, there is no sound. Prior to tonight, I was blocked from seeing even this much. I went to settings to check and it says the sound is coming from the speakers. I checked the volume on the speakers but still no sound. There is a speaker icon next to individual songs as they appear across the top as if they're playing.

Can someone help me find another place to look for sound again? I haven't made any changes to the computer and nothing else is plugged in that would require audio right now.