Sound and its characteristics pdf
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- What are the characteristics of Sound Waves?
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- Characteristics of Sound
Sound , a mechanical disturbance from a state of equilibrium that propagates through an elastic material medium. A purely subjective definition of sound is also possible, as that which is perceived by the ear, but such a definition is not particularly illuminating and is unduly restrictive, for it is useful to speak of sounds that cannot be heard by the human ear, such as those that are produced by dog whistles or by sonar equipment. The study of sound should begin with the properties of sound waves. There are two basic types of wave, transverse and longitudinal, differentiated by the way in which the wave is propagated. In a transverse wave , such as the wave generated in a stretched rope when one end is wiggled back and forth, the motion that constitutes the wave is perpendicular, or transverse, to the direction along the rope in which the wave is moving.
What are the characteristics of Sound Waves?
Sound is a form of energy produced by a vibrating bodies. Sound requires a material medium for its propagation. Sound does not propagate in vacuum as there is no material in the vacuum.
The to and fro or back and forth motion of an object is called vibration. Some instruments produce sound due to the vibration of membranes, some due to the vibration of strings, and some others produce sound due to the vibration of an air column. Amplitude The maximum displacement of a vibrating particle from its mean or equilibrium position is called its amplitude.
Time period The time taken by the vibrating particle for one full vibration or oscillation is called the time period of vibration. Frequency The number of vibrations per second is called the frequency. Frequency is measured hertz Hz. Characteristics of Sound Sound produced by any means has the following characteristics, namely, loudness , pitch or shrillness, and quality or timbre.
Loudness The loudness of sound depends on its amplitude. The loudness of sound is proportional to the square of the amplitude. The loudness of sound is measured in Decibel db. If loudness exceeds 80 db, then the sound becomes physically painful. Pitch The pitch of sound depends on its frequency. If frequency is more, then the pitch or shrillness is more. Audible sound Not all sound produced by vibrating bodies is audible.
The human ear can recognise the sounds of frequencies in the range of 20 Hz to 20, Hz. This range of frequency of sound is called audible sound.
Some animals like dogs and snakes can hear sounds of frequencies greater than 20, Hz. Infrasonic sounds Sounds of frequencies less than 20 Hz are called infrasonic sounds. Ultrasonic sounds The sounds of frequencies greater than 20, Hz are called ultrasonic sounds.
Summary Sound is a form of energy produced by a vibrating bodies. Science - Sound - Characteristics of sound - English 2. General Properties of Sound. Activity 1 amrita. Go to Activity Activity 2 iknowthat. This simulatiion explores pitch and volume of sound. Go to Activity. Summary Videos Activities References.
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Well, I would say every blank project in your DAW has an audio statue inside it just waiting for you, the sonic sculptor, to discover it. A sonic sculptor. But first of all, any good sculptor has to know what he is sculpting before he can go about crafting his masterpiece. The stone. All sound waveforms your stone is comprised of 7 characteristics.
The higher the frequency, the more high-pitched a sound is perceived. The sounds produced by drums have much lower frequencies than those produced by a whistle, as shown in the following diagrams. Please click on the demo button to hear their sounds and the difference in pitch. Loudness and the Decibel Scale Another property of sound or noise is its loudness. A loud noise usually has a larger pressure variation and a weak one has smaller pressure variation. Human ear can perceive a very wide range of sound pressure.
Sound is a form of energy produced by a vibrating bodies. Sound requires a material medium for its propagation. Sound does not propagate in vacuum as there is no material in the vacuum. The to and fro or back and forth motion of an object is called vibration. Some instruments produce sound due to the vibration of membranes, some due to the vibration of strings, and some others produce sound due to the vibration of an air column. Amplitude The maximum displacement of a vibrating particle from its mean or equilibrium position is called its amplitude.
Characteristics of Sound
In physics , sound is a vibration that propagates as an acoustic wave , through a transmission medium such as a gas, liquid or solid. In human physiology and psychology , sound is the reception of such waves and their perception by the brain. Different animal species have varying hearing ranges.
The sensation felt by our ears is called sound. It is a form of energy which makes us hear.