SOUND Proof Ceiling

Hello - I have a perplexing problem. The past month or so I've noticed a distinct dripping sound in two places whenever I use any of the plumbing in my two-story townhouse. When I run the kitchen sink (w/ hot or cold water), I hear a dripping sound in the ceiling above the kitchen (and the sound...

THere is a loud sound coming from the vent. The washer/dryer is off. The noise stays on even if the ac/fan is turned off. It sounds like the dryer would sound if it were turned on. I cannot find the source of the problem or make it turn off.

I have an older home, 1960. There are often crackling sounds coming from the joists holding up the ceiling. It seems to be somewhat related to temperature variations when the heater turns on. It's lucky for me that I see no cracks in the drywall to support that this is from settling. I would...

We will hear a drip, drip sound in our upstairs and downstairs bathrooms. The sound will stop for about 5 seconds if we turn the vent fan on, then it starts right back up again. It isn't related to when we flush the toilet or run hot or cold water. We hear the sound upstairs in the summer and...

When our upstairs toilets are flushed first thing in the morning ( or after a long time) I can hear a dripping sound in the ceiling between the first and second floors of my house. I don't think there are any pipes in the area of the house where I hear the drips though. It stops after a minute or...