 Tear down this wall!  was the challenge issued by United States President Ronald Reagan to Soviet Union leader Mikhail Gorbachev to destroy the Berlin Wall, in a speech at the Brandenburg Gate near the Berlin Wall on June 12, 1987, commemorating the 750th anniversary of Berlin.n the 1963  Ich bin ein Berliner  speech, U.S. President John F. Kennedy stated the support of the United States for democratic West Germany shortly after the Soviet-supported Communist state of East Germany erected the Berlin Wall as a barrier to prevent movement from East to West.
Feedback happens when a microphone picks up sound from speakers and then pipes that same sound back through the speakers and picks it up again. The never-ending loop of ear-pain is frustrating to experience, but fairly easy to fix by adjusting the levels of the speakers and microphone.
Click Apply, then OK.. Click the Microphone tab in the Sound window if your microphone is transmitting too much noise during your call. Select the microphone you are using, click Properties and then click the Levels tab. Drag the Microphone Boost slider to 0.0 dB if it's not at zero already.heck Your Sound Levels. Type soundâ from the Windows Start screen to open the Search bar. Select Settings in the Search bar, then click Sound in the main window. This opens the Sound window. Click the Playback tab in the Sound window if you are hearing too much noise on your end of the Skype call.