On a hard floor an untethered rug is more likely to slide or slip but when layering area rugs over carpet the rug is more likely.
Does putting a rug on the floor capture sound.
Let s start with the floor.
Don t put an area rug over a very long pile carpet such as a frieze or a newer soft carpet such as smartstrand because the area rug will not have firm support and will shift buckle and wrinkle.
Offsetting the rug can allow both patterns equal weight.
An area rug is a common addition to a hard surface floor such as hardwood laminate or tile.
If noise from downstairs neighbors is coming through your floors your first step should be to add carpeting to help dull the sounds.
You will need to cover the whole flor as sound is like water and will find the path of least resistance.
Heavily carpeted floors will absorb some sound from your speakers and damped the overall audio effect in a room.
Even carpeted floor tiles can help damped audio from above.
The top rug does not have to be parallel to the bottom rug.
Do recognize floor surface attenuation.
More likely the sound waves are being re radiated from the floor up and causing acoustical not vibration sound waves.
Similarly if you have a more plush style of carpet installed choosing a low profile berber or woven rug is your best bet.
Do know that hardwood floors are very susceptible to the vibrations caused by speakers resting on the floor causing sound anomalies.
This has been very sucessfully reduced by mlv on the floor.
It can even be laid over wall to wall carpet there are numerous reasons why area rugs are so popular and yet some people may be uncertain as to whether they should cover up their beautiful floors with a rug.