There are one or more microphones built into the headsets to detect external noise. By employing sophisticated electronic signal processing, an anti-noise signal is then generated to cancel out the external noise. In essence, this leaves only the desired music or soundtrack audible to the listener.
â¢ MANCHURIAN (adjective). The adjective MANCHURIAN has 1 sense: 1. of or relating to or characteristic of Manchuria or its people or their culture. Familiarity information: MANCHURIAN used as an adjective is very rare.
Manchuria borders the Russian territory of Amur Oblast, Primorsky Krai,and the Jewish Autonomous Oblast which has now only a small Jewish minority. To the south, it borders North Korea -- the small Russian-Korean border now cuts off Manchuria from the Sea of Japan.