Abstract. Low frequency noise, the frequency range from about 10 Hz to 200 Hz , has been recognised as a special environmental noise problem, particularly to sensitive people in their homes.
Read moreWhat is medium frequency and high frequency?
Frequencies immediately below HF are denoted medium frequency (MF), while the next band of higher frequencies is known as the very high frequency (VHF) band . The HF band is a major part of the shortwave band of frequencies, so communication at these frequencies is often called shortwave radio.
Read moreWhat are the frequency range?
The generally established audio frequency range is 20 Hz to 20,000 Hz , though most people can hear less than this entire range, and as they get older, the range tends to contract on both ends. The relationship between music and audio frequency is that each time you move up an octave, you double the frequency.
Read moreWhat is high frequency example?
A high-pitched whistle, squeal, and a child’s voice are high-frequency sounds.
Read moreWhat is the low frequency range?
Low frequency (LF) is the ITU designation for radio frequencies (RF) in the range of 30–300 kHz . Since its wavelengths range from 10–1 km, respectively, it is also known as the kilometre band or kilometre wave. LF radio waves exhibit low signal attenuation, making them suitable for long-distance communications.
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