Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
Able Planet TRUE FIDELITY NC350BC LINX Audio , Active Noise Cancelling Headphones
Able Planet are known in the headphone industry for their excellent range of noise cancelling headphones. They were kind enough to send out there highest model in the range the NC1100B’s. These retail at $129.99 and have been know to compete with other high competitors .We found the headphones to be designed extremely well , with a nice soft black finish. The ear cups were very comfortable and this maybe because they are thicker then most. The amazing design carries on to the structure of the headphones , you can fold the headphones down so they are totally flat and can fit in a very nice hard case provided (Very safe for transport).