I've been listening to a podcast and one time, when it was hard to hear, I turned it up and it continued to be hard to hear. I put it up to 30 and still could not hear it. I just assumed it was a bad podcast. Today, I was listening to it again and I noticed the volume does nothing when listening to a podcast. I currently have it on 0 and it's just as loud as it has been on 30. Have other people noticed this? I have a Lumia 920 on AT&T (so, on GDR1).