What is sound?
2
NOISEunwanted sound
SOUNDvibration of a medium, like air or water
TONE of a soundFrequency of vibration
(20Hz to 20.000Hz)
LOUDNESSAmplitude of the vibration
Hearing = Pressure changes on your ear drum
Non linear behaviour
Noise and projectors
Cooling fans are moving air and thus creating noise
• Careful design of the projector and choice of fans determine the produced noise
The dB value of a projector doesn’t say it all
• 50dB can be a quiet office or a normal conversation annoying, unwanted pitches of sounds = noise
7
Some tips to reduce the noise in your meeting room
Choose a projector with low noise
Keep a distance from the projector
Avoid reflection on hard surfaces
If you have a projector with filters, clean them regularly
8
Quietest Laser Projector
10
Quietest in the market
35dBA
32dBA in eco
No disturbing frequencies
Barco
Quieter than any of the
competitive products
Competition
No disturbance during
meetings or events
Value
Barco PGWU-62L
PGWU-62L and PGWX-62L
11
• Easy to use remote control and OSD
• Same Warranty conditions
• Filter free
Present-P
• Throw range: 0.75 - 5.5:1 (5 lenses)
• Motorized zoom/focus/shift
• +/- 100% Vertical lens shift
Lenses
• WUXGA (1920x1200)
• WXGA (1280x800)
• Both 16:10 aspect ratio
Resolution
• 6.000 ANSI lumens
• ISO 21118 norm
Brightness
• Laser Phosphor Lightsource
• 20.000 hours lifetime on laser diodes
Laser
Top Related