I was waiting for anyone to come up with that issue of "handle touching the couch"LOL. Guys, let's cut the BS'ing and get serious, OK? What "certain" vibrations are you talking about that need measurements? What are those "many issues" associated with a tripod you are talking about? Can you name just a few to get started?
I was simply stating the conventional wisdom:
See: d)1. Do I really need to put the Audyssey mic on a tripod or stand? (Click to hide)
Absolutely yes. This is one of the most common reasons for a poor calibration. You will not get a good result if you hold the mic in your hand, or if you place it on the back of your couch or on some other makeshift support. The mic should be mounted at ear height (when sitting in your usual position), pointed vertically up to the ceiling, clear by at least 2 feet from any walls and placed within the boundary of your left and right speakers. A tripod is OK and many people have these in their possession, but it can be difficult to use as one leg often has to be rested on the floor and the other two legs rested on the chair or couch. Much better is a mic stand - these are fairly inexpensive and they make running the measurements much, much easier. Something like this is fine:
Typical boom mic stand (USA members)
Typical boom mic stand (UK members)
You will also need this gadget to allow you to attach the Audyssey mic to the stand:
Use this to attach your Audyssey mic to your stand
A far superior, but much more expensive, mic adapter (UK members)
A far superior, but much more expensive, mic adapter (USA members)
If you use the Audio-Technica adapter (see above link) you will also need this
Another high quality adapter, available in the UK and USA
If your floors are the wooden suspended sort, you may want to place the legs of the mic stand on some sort of absorber to minimise the chance of spurious bass signals entering the mic via the floor and the stand itself. These are ideal for most people:
Some isolator feet you might want to check out
Isolator feet for UK members on sale here
If your floor is solid or carpeted then you probably don't need the absorbers.
When measuring with a mic stand, try to avoid positioning the boom arm between the mic and the speakers.
If you are satisfied with your results, and how your system sounds in your room - that's great. I have no quarrel with your approach - but it sounds like you were waiting for this issue to arise to make a point. I'm no expert, but as many in this thread have suggested - a boom mic stand eliminates any possibility of unnecessary vibrations influencing the Audyssey calculations.