We don't have music, we get White Noise pumped through the PA system 24/7. It has the weird effect of the overall ambient noise being slightly higher than no so

We don't have music, we get White Noise pumped through the PA system 24/7. It has the weird effect of the overall ambient noise being slightly higher than no sound. But it also makes keyboard and voice noises attenuate to background more quickly, so I don't (intelligibly) here people talking across the room. It's fairly open office with 4' cube walls organizing things into sections. I use my headphones to listen to music about 70% of the time. I put up a sign that reads, "Super headphones in. I can't hear you. please kick chair or otherwise make your presence known." Unless you're an elevator attendant, work in retail, or someplace like a salon I don't think you should have to deal with mandatory workplace music. Instead of using louder noises to block out your office, have you had any success with active noise cancellation headphones?