ARTICLES

Humans can generally hear frequencies from 20 to 20,000 hertz. However, under ideal laboratory conditions, humans have been able to hear frequencies as low as 12 hertz. As humans get older or are exposed to loud sounds t...

www.reference.com/article/highest-frequency-human-can-hear-8b9f36490ffe72f2

The average frequency range for human speech varies from 80 to 260 Hertz. The vocal speech frequency of an adult male ranges from 85 to 180 Hertz, while the frequency of an adult female ranges from 165 to 255 Hertz.

www.reference.com/science/frequency-range-human-speech-3edae27f8c397c65

The human voice ranges from a whisper, 20 decibels, to the loudest shout ever recorded at 121 decibels, which is equivalent to the volume of noise produced by a chainsaw or leaf blower. This record was set by a teacher, ...

www.reference.com/article/range-human-voice-decibels-616e026c36bd4f5b

SIMILAR ARTICLES

Resonance frequencies are the natural frequencies at which it is easiest to get an object to vibrate. While setting up vibrations at other frequencies is possible, they require much more energy and constant input to main...

www.reference.com/science/definition-resonant-frequency-858258b67a7ccfa1

The key difference between infrasonic and ultrasonic waves is that infrasonic waves include sounds emitted at levels below frequencies of noise that can be heard by humans while ultrasonic waves are those that exceed 20 ...

www.reference.com/science/difference-between-infrasonic-ultrasonic-waves-1aa034dfb8e366f1

Frequency reuse is the practice of splitting an area into smaller regions that do not overlap so that each utilizes the full range of frequencies without interference. The introduction of this concept was a major step in...

www.reference.com/science/frequency-reuse-c2c8d2ddaa04c628

Satellite uplink and downlink frequencies vary from one transmission source to another, but all must be different from one another in order to avoid interference during transmission. This is due to the waveforms created ...

www.reference.com/science/uplink-downlink-frequencies-different-satellite-communications-8a991aa50f0ba3ba