Did you know that noise cancelling headphones came into being because of the need for a system to counteract the noise aboard planes and helicopters? Since it was invented, noise cancelling technology has been made widely available in aviation headsets. In the consumer electronics market, the counterparts of such equipment include the panasonic rp hc300 noise cancelling headphones.
These headphones’ noise cancelling technology to reduce ambient noise makes use of active noise control (ANC). One or more microphones are near the ear, and the headphones also have electronic circuitry that uses the microphone signal to emit an antinoise signal. The speaker driver in a pair of Panasonic RP HC300 noise cancelling headphones produces the antinoise signal, and the resulting destructive interference cancels unwanted ambient sounds from being heard within the confines of the headphones. ANC level for these headphones is more than 18 dB at 300 mHz.
One of the main benefits of these headphones is that they let you listen to music without raising the volume to an immoderate level, so they are easy on your sense of hearing. Environmental noises in mass transportation vehicles and noise from air conditioners can be reduced by an eighth with the Panasonic RP HC300 noise cancelling headphones.
Noise cancelling headphones are known to work well for annoying sounds that happen to be continuous such as the hum of refrigerators or the sound you hear while you are in an airplane’s cabin. However, sounds with audio signals that are rapidly changing, like human voices, car horns, or telephones, will stay relatively intact when you have Panasonic RP HC300 noise cancelling headphones on.
High-frequency noise components are not so easily cancelled using noise cancelling technology because of the technical unfeasibility that such an effort would involve. Thus, soundproofing is how the Panasonic RP HC300 noise cancelling headphones deal with noise components in the higher frequencies. The headphones’ left and right housing and ear pads are large enough to fit comfortably over the wearer’s ears.
So that the RP HC300 headphones’ 3.5 mm (1/8 in.) stereo plug will fit into headphone jacks in most common audio units, these headphones come with a large (6.3 mm or 1/4 in.) stereo plug adaptor. You can try the adaptor if the stereo plug does not fit into the jack in an airplane armrest, for instance.
Another reason that the Panasonic RP HC300 noise cancelling headphones are travel friendly is that they have a travel-fold design and come with a carrying case where you can put them away with their included accessories when not in use. Their net mass is just 230 g (8.1 oz.), so they are not too heavy to carry around with you on your travels.
