my panasonic home theatre (dvd player) does the same , it has nothing to do with the anynet, if u connect using hdmi, (well mine is hdmi as well) it just tries to be smart and shuts down when u shut down the tv. i dunno if u can stop this from happening,
The energy in a sound wave can be measured using Decibels. The Decibel Meter shows examples of things that make noise and measurements in decibels. Amplitude measures how forceful the wave is. It is measured in decibels or dBA of sound pressure. 0 dBA is the softest level that a person can hear.
To begin the test, an initial measurement is taken by transmitting a noise signal into the room and the equipment takes a measurement of how much sound was absorbed. Once the initial measurement is taken, the product being tested is placed in the same test lab, and the sound absorption is measured at four different frequencies.