Noise Pollution


Unwanted sound is considered as  noise pollution which can cause both behavioral and health problems in human beings. Noise pollution can cause physiological changes in the body like hypertension, high stress level, sleep disturbances etc.

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VU meter


The VU Meter ( Volume Unit Meter) is the simple analogue moving coil meter used in audio equipments to measure the intensity of sound in Volume Units (VU).The level of measurement is in dB and time in seconds. The design of the VU meter is based on the way by which human ear perceives sound in volume.VU meters are well suited to indicate continuous audio signals than the fast transient audio signals.

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VU meter


The VU Meter ( Volume Unit Meter) is the simple analogue moving coil meter used in audio equipments to measure the intensity of sound in Volume Units(VU).The level of measurement is in dB and time in seconds. TheVolume unit is ZeroVU when One Milli Watt Sinewave power flows through a 600 ohms resistor at 1000 cycles per second.The design of the VU meter is based on the way by which human ear perceives sound in volume.VU meters are well suited to indicate continuous audio signals than the fast transient audio signals.

Continue reading “VU meter”