Sennheiser 2011 Annual Report Download - page 20

Download and view the complete annual report

Please find page 20 of the 2011 Sennheiser annual report below. You can navigate through the pages in the report by either clicking on the pages listed below, or by using the keyword search tool below to find specific information within the annual report.

Page out of 45

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45

 
20 Hz
20
SECRET VIBRATIONS
THE CITY AND ITS
It’s like some mysterious music of the night. Around the
world, a deep vibrating bass is robbing people of their
sleep. Humming to the beat of air conditioners, cities are
the worst offenders. As researchers studying this
phenomenon are discovering: our hearing is much more
sensitive than we ever realized.
NIGHT CONCERT
39
City as subwoofer: the droning
of traffic, air conditioners and
other machines keeps people
awake. Especially in the
“canyons” between buildings,
such as here in Tokyo, a regular
sound wave can occur.