Inaudible Audible Sound - Frequency Range and Vibration

Edited By Vishal kumar | Updated on Sep 24, 2024 09:54 PM IST

A musical sound is pleasing to the listener while a noise is not. The delight derived from a musical note is because it strikes the ear as a superbly undisturbed, uniform sound which remains unaltered as long as it exists. In this Article we will discuss about, what is the meaning of Audible and Inaudible? What is audible range of human ear? What is audible frequency range? What is infrasonic sound? What is audible sound? Difference between audible and inaudible sound. So let’s see.

JEE Main 2025: Physics Formula | Study Materials | High Scoring Topics | Preparation Guide

JEE Main 2025: Syllabus | Sample Papers | Mock Tests | PYQs | Study Plan 100 Days

NEET 2025: Syllabus | High Scoring Topics | PYQs

Inaudible Audible Sound - Frequency Range and Vibration

musical sound

Note: Audible waves in hindi is श्रव्य तरंगें

What is the meaning of Audible and Inaudible?

The meaning of audible is “Loud enough to be heard or able to be heard” and in Hindi is सुनाई देने योग्य. The meaning of Inaudible is “unable to be heard” and in Hindi is “न सुनाई पड़नेवाला”.

What is audible sound?

audible sound

Definition of Audible: The sound waves ranging in between 20Hz and 20 KHz are called audible sound. The classification of sound can be audible and Inaudible.
The word audible come "able to be heard," 1520s, from French audible and directly from Medieval Latin audibilis "that heard," from Latin audire "to hear".

But the frequencies that we can hear are often dependent on various other factors like our environment. Repeated hearing of loud noise affects the hearing capacity of s person. The frequencies in the higher frequency range are not pleasant. This frequently happens with old age.

The human ear is sensitive to every minute force distinction in the atmosphere if they are in the audible frequency range. It can determine a pressure difference of less than one billionth of atmospheric pressure.

Also read -

What is audible range of human ear?/how many decibels can a human hear?/what frequency can humans hear? Audible sound range in db for human

The audible range/the audible sound range for humans is about 20 to 20,000Hz

The 'normal' hearing frequency range of a fit young person is about 20 to 20,000Hz. However, a 'normal' audible range for noise or loudness is from 0 to 180dB, anything over 85dB is considered damaging, so we should try not to go there.

What is the audible frequency?

An audio frequency or audible frequency is a repeated vibration whose frequency is in the band audible to the common man, the human hearing range. SI unit of frequency is the hertz.

Inaudible sound:

The frequencies occupying below 20Hz and those occupying above 20 kHz cannot be recognized by the human ears. Therefore all the frequencies below 20Hz and that above 20 kHz are called in audible sounds. Infrasonic sound is the key used for the frequencies below 20Hz and those above 20 KHz in the higher range of frequencies are called ultrasonic sound.

Example: The hearing range of animals like dogs can recognize the frequencies lying above 20 kHz. Therefore dogs are trained in police forces with the help of warble (Whistle) which serve as a source of frequencies greater than 20 kHz, which are audible to dogs and not to human beings. These higher ranges of frequencies have numerous applications. They have applications in following and researching diseases and are often used in healing or curing them. Your voice is not audible meaning in hindi is आपकी आवाज सुनाई नहीं दे रही है.

What is infrasonic sound?

The low-frequency sound which the human ear cannot identify or detect is also called infrasonic sound.

Related Topics Link,

What is Ultrasound sound?

Ultrasound is sound waves with frequencies more than the superior hearable variety of human hearing. Ultrasound isn't divergent from "normal" sound in its physical characteristics, except that humans cannot hear it. This limit varies from human to human and is around twenty kilohertz for young adults.

The meaning of Sonic Sound is sonic vibration machines equipment sound waves between 20 to 20,000 Hz (in the range of human hearing) and releases a relaxing humming noise. The lubrication activates sound waves to pass via the skin and deep into the tissue, causing cells to vibrate and the frequency of subsonic sound is 20 Hz.

NCERT Physics Notes:

JEE Main Highest Scoring Chapters & Topics

Just Study 40% Syllabus and Score upto 100%

Download E-book

What is the difference between audible sounds and Inaudible sounds?/differentiate between audible and inaudible sound:

Audible Sounds	Inaudible sounds
Audible sounds are sounds of frequency that are audible to the human ear	Inaudible sounds are sounds of frequency that are not audible to the human ear
The frequency of audible sound is usually 20-20000 KHz	The frequency of inaudible sound is usually less than 20 KHz
It can be heard by humans and animals	It can be heard by only some animal life like dolphin
Example: sounds with frequency from 20 Hz to 20, 000 Hz	Example: Sounds with frequency less than 20 Hz or more than 20,000 Hz

Some other terms like

Perception of Sound: Different sounds are units perceived otherwise by the human brain. The sense of hearing is very important for all organisms together with the citizenry. The sound is employed to find danger, to hunt, to navigate the method and most typically, it's accustomed to communicating with different beings. Nowadays, several technologies are fictional which permit the ultrasound to record sounds. Not solely recorded, however, sounds may be generated and transmitted with the assistance of technologies.

Also must :

The sounds that are unpleasant to listen to in an area unit are termed as noise. Noises area unit unwanted sounds. In additional technical terms, noises unite those factors that hinder the fascinating elements. To review and analyze an acoustic wave, six factors are a unit to be thought of. These factors are unit pitch, loudness, duration, location in area or 3 dimensional or spatial location, sonic texture, and timbre. Below are the characteristics

Pitch: The periodic nature of the vibrations that build an acoustic wave is understood as a pitch. The pitch might be a pitch or an occasional pitch relying upon the frequency.

Duration of Sound: The period of sound is known once we will 1st hear the sound or once the sound starts until the time once we cannot hear the sound from now on or once the sound stops. The period of sound might be long or short.

The loudness of Sound: Once we hear a sound, the nerves that facilitate U.S.A. in hearing or the nerves that square measure give in our sensory system, square measure stirred. Loudness is what's outlined because of the total variety of such stimulation of the audible nerves over a cycle or period.

Timbre: the standard of varied sounds is cited as timber. Examples square measure the dull sound that a tough solid sort of rock makes once it hits the bottom.

Sonic Texture: the various varieties of various sources of sound and also the manner they move with one another are termed as sonic texture.

Spatial or house Location: spatial location is outlined because of the location of the sound waves in the house, considering the various geometrical axes, x y, and Z-axes.

Also check-

Frequently Asked Questions (FAQs)

1. What is human ear decibel range?

Most speech sounds vary from 30 to 70 decibels, the right human hearing frequency vary that describes mild-to-moderate hearing disorder.

2. How much Hertz human can hear?/What is the audio frequency range of humans?

Humans will hear about/the audible sound range for humans is/audible get human range of 20 Hz to 20kHz.

3. Define intensity of sound?

The intensity of sound at a point is the time rate of flow of sound energy passing normally through a unit area at the point. Its unit is the joule per sec. sq. m (J/s.m²) or watt per square metre (W/m²).

4. Which quantity out of frequency and amplitude determines the pitch of the sound? Or Which out of pitch and frequency is a measurable quantity?

The frequency of sound determines its pitch. A high pitched or shrill sound is produced by a body vibrating with a high frequency and a low pitched or flat sound is produced by a body vibrating with a low frequency.

Frequency is a measurable quantity whereas pitch is not a measurable quantity.

5. Give reason: The notes of sitar and a guitar sound different even if they have the same loudness and the pitch.

The quality or timbre of the sound of a sitar is different from that of a guitar. The number of overtones or partials present and their relative intensities determine the quality or timbre of the sound of a musical instrument. Therefore, even if the pitch and the loudness are the same, the notes of a sitar and guitar sound different.

6. How is the audible frequency range test done?

The frequency range is tested using frequency counter or spectrum analyzer.