I have two AG AC 90 cameras and have been trying for about two years to find the solution to the audio drop out problem. Every time the camera automatically starts a new clip (every 23 minutes or so) the audio drops out.It lasts about 3 frames or so.It is very noticeable.I can't seem to find anyone else who has said anything about this. I was hoping it was a setting but I have gone through every setting and nothing helps. This only seems to happen when the camera is running continuously so has to make new clips every 23 minutes or so.At the end of each clip the audio drops out for about 3 frames. The audio is lost and there is no way of getting it back.In an interview situation this is a disaster .