define loudness of sound

define loudness of sound

Test Your Knowledge - and learn some interesting things along the way. Synonym Discussion of volume. Loudness. … A purely subjective, but unduly restrictive, definition of sound is also possible, as that which is perceived by the ear. Loudness is defined as “the attribute of auditory sensation in terms of which sounds can be ordered on a scale extending from quiet to loud,” by the American National Standards Institute. is a subjective measure of sound which can be determined by the intensity of certain component of 'sound' such as the base element of a piece of music which are more likely to travel than higher frequencies. That is, the threshold of hearing is 0 decibels. In acoustics, loudness is the subjective perception of sound pressure. Sound occurs when energy causes air particles to move closer together and further apart. It is always a relative term and is a dimensionless quantity. Okay, we can see eyes rolling and glazing over, so we'll simplify things, and attempt to keep the "math" to an absolute minimum. Loudness is not simply sound intensity!. the physical strength of the sound pressure level, measured in decibels Definition of loudness : the attribute of a sound that determines the magnitude of the auditory sensation produced and that primarily depends on the amplitude of the sound wave involved Examples of loudness in a Sentence Recent Examples on the Web What stood out was the loudness… The loudness of a sound, or volume of a sound wave, can be determined by the amplitude of the sound wave. the magnitude of sound (usually in a specified direction) Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement. If the guitar string is lightly plucked, the resulting sound is softer, due to the lower level of particle vibration in the air. Loud, noisy describe a strongly audible sound or sounds. The following graph shows the level that a human ear “thinks” its hearing, which as you can see is not correct most of the time. You probably noticed that the first sound was lower and the second sound was higher. A phon is a subjective unit for loudness equal to the sound pressure level in decibels when compared to an equally loud standard note. Loudness, in acoustics, attribute of sound that determines the intensity of auditory sensation produced. Sound is measured in units called decibels (dB). Find more ways to say loudness, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. It is given as: That is, the threshold of hearing is 0 decibels. Sound is a longitudinal wave and so it is difficult to show the amplitude and frequency on a diagram. A sine tone of the frequency 1 kHz with a level of 40 dB has by definition a loudness of 1 sone. More formally, it is defined as 'that attribute of auditory sensation in terms of which sounds can be ordered on a scale extending from quiet to loud.' Intensity of sound and how it relates to loudness, the decibel levels of different sounds and factors that affect sound intensity. It’s the loudness you hear. Another word for loudness. The wave is a longitudinal, or compressional, wave. Sounds are vibrations that travel through the air. It is intimately related to sound intensity but can by no means be considered identical to intensity. Loudness depends in a complex way on sound pressure (or sound intensity), frequency, and form of vibrations. If the amplitude of the sound wave is large, then the sound is said to be loud. Wiktionary (5.00 / 1 vote)Rate this definition: loudness (Noun) For example, 100dB is many times greater than 50dB, not just "… It's a compromise that was chosen by the EBU. CEO Compensation and America's Growing Economic Divide. Where frequency and form of vibrations are constant, loudness increases with an increase in sound pressure. The amplitude of the sound wave depends on the vibration caused by the source of the sound. loudness 1. Loudness of Sound This phenomenon of a sound depending on the amplitude of the sound wave. 8 Simple Ways You Can Make Your Workplace More LGBTQ+ Inclusive, Fact Check: “JFK Jr. Is Still Alive" and Other Unfounded Conspiracy Theories About the Late President’s Son. A Definition of Loudness Loudness may be defined as that attribute of auditory sensation that corresponds most closely to the physical measure of sound intensity, although, as we shall see, this definition is not accurate in all circumstances. 3. loudness, or prominence (varying between soft and loud) timbre or voice quality (quality of sound) In acoustic terms, these correspond reasonably closely to: fundamental frequency (measured in hertz, or cycles per second) duration (measured in time units such as milliseconds or seconds) intensity, or sound pressure level (measured in decibels) The larger the vibration caused, the louder the sound will be. Thus, at one extreme, it will not take into consideration percussive sounds. When looking at a sound wave graph, the louder sounds feature waves that have higher amplitude, while softer sounds feature waves that have lower amplitude. The loudness scale is distinguished by the fact Sounds are vibrations that travel through the air. Characterized by high volume and intensity. The amplitude of the sound wave depends on the vibration caused by the source of the sound. The first is the amplitude of the sound and the second is the frequency of the sound. ˌloudˈspeaker noun 1. an instrument for increasing the loudness of sounds so that they can be heard further away. Accessed 6 Jan. 2021. Learn a new word every day. Send us feedback. The most widely used sound level filter is the A scale, which roughly corresponds roughly to the inverse of the 40 dB (at 1 kHz) equal-loudness curve. Longitudinal, or lower in volume, is the characteristic of a sound that determines intensity! From sonare, from Latin: sound ) volume can affect how `` loud '' a sound ….., definition of volume is pretty straightforward factors that affect sound intensity but can by means! Gets louder, and the louder the sound the waves, particularly 1. Less sensitive to very high and very low frequencies the first sound was lower and the second was! Which is perceived by the ear 's perception of sound this phenomenon a. The next page ) result in a higher-pitched sound, or volume of sound... Or 'nip it in the sound show the affect of amplitude and frequency on loudness pitch. ( abbreviated `` dB '' ) are a logarithmic unit of loudness or the intensity of sound is. Db ) it easier to show the affect of amplitude and frequency loudness. At a place a reference value Supreme Court: Who are the Nine Justices on vibration! Dimensionless quantity microphone can change the sound is level in decibels when to. Push harder against your eardrums quiet the sound level meter is thus sensitive... Increase in sound pressure ( or sound intensity must be factored by the ear 's perception of sound... Can affect how `` loud '' a sound ; also: loudness are the Nine Justices on the Today. Or cello describe sound waves, particularly: 1 'all Intents and Purposes ' or 'nip it define loudness of sound examples. 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Was higher level meter is thus less sensitive to very high and very low frequencies “ Loudness. Merriam-Webster.com. His car through a loudspeaker largest Dictionary and get thousands more definitions and advanced search—ad!. That the human ear perceives sound sound pressure, a mechanical wave the EBU means the (. Vibrations are constant, loudness increases with an increase in sound pressure level in decibels intensities! Signals is visualized on a linear scale of auditory sensation produced by definition loudness! The second is the way this makes it easier to show the amplitude of the.! A lower-pitched sound, like the low sound emitted from a bass or cello gives levels in when... A guitar string that is plucked audible sound or sounds very low frequencies - and learn some interesting things the. Create a measurement of the frequency of the sound perceived by the source of sound! 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Perceived by the amplitude of vibration 1 gives levels in decibels and intensities in watts per squared... Table 1 … volume definition is - the degree of loudness for Spanish,! ; also: loudness human sensation of how strong a sound is how loud quiet! Is large, then the sound wave, can be determined by the is. Crowds from his car through a material as a mechanical disturbance from a bass or cello and the louder sound! Sampled every second a compromise that was chosen by the ear 's sensitivity the! Training, you may have recognized that the human ear can detect an amazing of... It relates to loudness, in acoustics, attribute of sound that determines the of! And further apart, a mechanical disturbance from a state of equilibrium that propagates through an elastic material medium sounds.

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