The problem of noise aboard airplanes and helicopters was one of the main reasons that noise cancelling earphones were invented. Noise cancelling technology in aviation headsets is now common. panasonic noise cancelling earphones use this technology so that passengers in planes as well as trains and buses can get some relief from the noise of the engines or even the air conditioning.
Noise cancelling technology involves active noise control (ANC), which uses one or more microphones placed beside the ears, and electronic circuitry that uses the mics’ signal to produce an antinoise signal. As the antinoise signal is generated from the earphones’ speaker driver, destructive interference cancels the ambient noise that you hear from your Panasonic noise cancelling earphones, which have a 1 9/16 in. (40 mm) drive unit and a neodymium magnet to create the out-of-phase sound effects that mask the background noise.
With a pair of noise cancelling earphones, you will not have to raise the volume excessively just to be able to enjoy listening to music while you are in an environment that has ambient noise. In this way, noise cancelling earphones help protect your sense of hearing. Sound can be deceptive at times, and your sense of hearing adapts to higher sound volumes, which is why it is best to set your audio unit at a safe sound level before your hearing adjusts to the sound level.
Reduction of ambient noise through ANC that you would get from a retail product like Panasonic noise cancelling earphones is typically for lower frequency noise. With the Panasonic RP HC300, over 18 decibels is reduced at 300 Hz.
Ambient sounds with higher frequency are controlled through soundproofing because ANC is less effective at higher frequencies. Wearing the Panasonic RP HC300 gives you adequate soundproofing since its suitably sized left and right housing fit comfortably over your ears.
Even though ANC products like Panasonic noise cancelling earphones work well against acoustic noise that is continuous, like airplane cabin noise and the hum of a refrigerator or the air conditioning, they are not as effective against human voices or other audio signals that change rapidly. This is something that you would do well to keep in mind when you use this type of earphones.
Another thing to remember is that noise cancelling earphones will necessarily have their own power consumption. For the Panasonic RP HC300, power is provided by an AAA battery (R03/LR03), which is included when you buy this product. Battery life is 17 hours (R03) or 35 hours (LR03) depending on the operating conditions.
With the use of Panasonic noise cancelling earphones, you can get more peace and quiet when travelling. You need not endure annoying background noise on road trips or plane flights.
