Sound is created by vibrations traveling through a medium as longitudinal waves. The properties of sound waves, including their amplitude, frequency, wavelength, and velocity, determine characteristics like volume, pitch, and ability to reflect or absorb. Sound propagation principles state that sound energy is transferred via compression and rarefaction waves, and factors like medium, weather conditions, obstacles, and open or enclosed spaces affect how far sound travels from its source.
Learn how sound, vibrations, and waves all relate to each other by using simple physics equations. Included GIFs to understand the physical representation of each concept.
Complete and comprehensive study of the entire chapter with attractive pictorial representation of topic being discussed and Studied. Ideal material for students to get a gist of the entire Chapter, make projects, complete ppt slide presentation for self study and group discussion.
Learn how sound, vibrations, and waves all relate to each other by using simple physics equations. Included GIFs to understand the physical representation of each concept.
Complete and comprehensive study of the entire chapter with attractive pictorial representation of topic being discussed and Studied. Ideal material for students to get a gist of the entire Chapter, make projects, complete ppt slide presentation for self study and group discussion.
Thanks all. I am from chiranjiv bharati school, palam vihar. this presentation is on sound and covers various other topics like frequency, wavelength, Sonar, types of sound, etc.
Thanks all. I am from chiranjiv bharati school, palam vihar. this presentation is on sound and covers various other topics like frequency, wavelength, Sonar, types of sound, etc.
ARCHITECTURAL SERVICES – V (ACOUSTICS) (RAR – 806)
MODULE-1 – BUILDING ACOUSTICS
(INTRODUCTION) Presented by Ar. Manish Kumar, Assistant Professor in Architecture Department at Axis Institute of Architecture
we hear many type of sound from various sources like humans, birds, bells, machines, vehicles, televisions, radios, etc. Sound is a form of energy which produces a sensation of hearing in our ears.
The presentation which increases your knowledge about sound.
by Mohammad Ali.
WHAT IS ACOUSTICS? what is sound? AMPLITUDE AND VOLUME, FREQUENCY AND PITCH
LOUDNESS OR INTENSITY
LOUDNESS OR INTENSITY
LOUDNESS OR INTENSITY, TIMBRE
VELOCITY OF SOUND
AMPLITUDE
REFLECTION
An auditorium is designed based on the function itself. For example: Dewan Agong Tuanku Canselor UiTM, that is a multi-purpose auditoria which indicates both functions; speech and also music purposes. It depends on the event that will be held in the auditorium. The design of the auditorium must comprises of both functions in order to have a good room acoustic. In addition, it must be work out for changes.
You could be a professional graphic designer and still make mistakes. There is always the possibility of human error. On the other hand if you’re not a designer, the chances of making some common graphic design mistakes are even higher. Because you don’t know what you don’t know. That’s where this blog comes in. To make your job easier and help you create better designs, we have put together a list of common graphic design mistakes that you need to avoid.
Expert Accessory Dwelling Unit (ADU) Drafting ServicesResDraft
Whether you’re looking to create a guest house, a rental unit, or a private retreat, our experienced team will design a space that complements your existing home and maximizes your investment. We provide personalized, comprehensive expert accessory dwelling unit (ADU)drafting solutions tailored to your needs, ensuring a seamless process from concept to completion.
Dive into the innovative world of smart garages with our insightful presentation, "Exploring the Future of Smart Garages." This comprehensive guide covers the latest advancements in garage technology, including automated systems, smart security features, energy efficiency solutions, and seamless integration with smart home ecosystems. Learn how these technologies are transforming traditional garages into high-tech, efficient spaces that enhance convenience, safety, and sustainability.
Ideal for homeowners, tech enthusiasts, and industry professionals, this presentation provides valuable insights into the trends, benefits, and future developments in smart garage technology. Stay ahead of the curve with our expert analysis and practical tips on implementing smart garage solutions.
Book Formatting: Quality Control Checks for DesignersConfidence Ago
This presentation was made to help designers who work in publishing houses or format books for printing ensure quality.
Quality control is vital to every industry. This is why every department in a company need create a method they use in ensuring quality. This, perhaps, will not only improve the quality of products and bring errors to the barest minimum, but take it to a near perfect finish.
It is beyond a moot point that a good book will somewhat be judged by its cover, but the content of the book remains king. No matter how beautiful the cover, if the quality of writing or presentation is off, that will be a reason for readers not to come back to the book or recommend it.
So, this presentation points designers to some important things that may be missed by an editor that they could eventually discover and call the attention of the editor.
Hello everyone! I am thrilled to present my latest portfolio on LinkedIn, marking the culmination of my architectural journey thus far. Over the span of five years, I've been fortunate to acquire a wealth of knowledge under the guidance of esteemed professors and industry mentors. From rigorous academic pursuits to practical engagements, each experience has contributed to my growth and refinement as an architecture student. This portfolio not only showcases my projects but also underscores my attention to detail and to innovative architecture as a profession.
Transforming Brand Perception and Boosting Profitabilityaaryangarg12
In today's digital era, the dynamics of brand perception, consumer behavior, and profitability have been profoundly reshaped by the synergy of branding, social media, and website design. This research paper investigates the transformative power of these elements in influencing how individuals perceive brands and products and how this transformation can be harnessed to drive sales and profitability for businesses.
Through an exploration of brand psychology and consumer behavior, this study sheds light on the intricate ways in which effective branding strategies, strategic social media engagement, and user-centric website design contribute to altering consumers' perceptions. We delve into the principles that underlie successful brand transformations, examining how visual identity, messaging, and storytelling can captivate and resonate with target audiences.
Methodologically, this research employs a comprehensive approach, combining qualitative and quantitative analyses. Real-world case studies illustrate the impact of branding, social media campaigns, and website redesigns on consumer perception, sales figures, and profitability. We assess the various metrics, including brand awareness, customer engagement, conversion rates, and revenue growth, to measure the effectiveness of these strategies.
The results underscore the pivotal role of cohesive branding, social media influence, and website usability in shaping positive brand perceptions, influencing consumer decisions, and ultimately bolstering sales and profitability. This paper provides actionable insights and strategic recommendations for businesses seeking to leverage branding, social media, and website design as potent tools to enhance their market position and financial success.
2. What is Sound?
A sound is any vibration (wave) traveling through the air or other
medium which can be heard when it reaches a persons ear.
• Sounds waves are:
• Longitudinal - oscillations parallel to propagation
• Mechanical - require a medium to travel through
3. How Sound is Created ?
• When an object vibrates, it creates sound – loud, deep and long, short and
high-pitched – pure, gravely, distorted, sweet, soft, piercing, buzz
• Any sound your ear can hear is created by the mechanical back-and-forth
motion of an object
4. Sound as a form of energy
• Sound energy is a form of energy associated with the
vibration of matter.
• The SI unit of sound energy is the joule (J).
• Sound is a mechanical wave and as such consists physically
in oscillatory elastic compression and in oscillatory
displacement of a fluid.
• Therefore, the medium acts as storage for both potential
and kinetic energy as well.
• Sound is the movement of energy through substances in
longitudinal (compression/rarefaction) waves. Sound is
produced when a force causes an object or substance to
vibrate — the energy is transferred through the substance
in a wave.Typically, the energy in sound is far less than
other forms of energy.
5. Compression
A compression is a region in a longitudinal wave where the
particles are closest together.
Rarefaction
A rarefaction is a region in a longitudinal wave where the
particles are furthest apart.
6. Velocity of sound
Def :The speed at which the sound waves travel or pass through any
medium is termed as as the sound velocity and it depends on the nature
and temperature of medium through which the sound travels
• The important facts to be remembered in connection with the
velocity of sound are as follows :
• The time required by sound waves to travel from one place to
another is quite appreciable
• The velocity of sound in air is affected by the amount of moisture in
the air the temperature of the air and the intensity of wind
• The velocity of sound is independent of the frequency or pitch of
sound
• It can be seen from table that sound travels much faster in solids and
liquids than it does in air
7. • Hearing range describes the range of frequencies
that can be heard by humans or other animals,
though it can also refer to the range of levels.
• The human range is commonly given as 20 to 20,000
Hz, though there is considerable variation between
individuals,
• especially at high frequencies, and a gradual loss of
sensitivity to higher frequencies with age is
considered normal.
• Sensitivity also varies with frequency,
Hearing range
8. • Echo is a reflection of sound that arrives at the
listener with a delay after the direct sound.
• The delay is proportional to the distance of the
reflecting surface from the source and the
listener.
• Typical examples are the echo produced by the
bottom of a well, by a building, or by the walls of
an enclosed room and an empty room.
• A true echo is a single reflection of the sound
source
EchoDecibles
• In acoustics to relate the intensity of sound to an intensity
level corresponding to the human hearing experience , the
“bell’’ unit named in honor of alexander graham bell was
introduced so that
• IL =log I/I0 (in bel)
• IL = 10 log I/Io( in decibles)
• Where IL= sound intensity level, decibles
• I= sound intensity watt per square centimeter
• Io = 1o raise to -16 watt / square cm
9. Amplitude & Volume•
The amplitude of a wave determines a sounds volume.
– Volume tells how loud or soft a sound is
determined by how much energy a wave carries.
– Amplitude describes how much energy a wave is carrying:
• more energy = greater amplitude = louder sound
• greater amplitude = taller wave or more intense compressions
Higher Amplitude Loud Lower Amplitude
Quiet Higher Amplitude Lower Amplitude Loud Quiet
10. Frequency and pitch
Pitch tells how high or low a sound is
– a higher pitch will have greater frequency (more
waves crammed into each second of time)
• higher frequencies have smaller wavelengths
Frequency – This is the number of oscillations per second.
This is represented with ‘f’ and measured in Hertz (Hz)
11. Wavelength of sound
This the distance between two pressure peaks or
valleys, measured in metres (m) and represented with
the Greek alphabet ‘l’ (lambda)
Period – This is the time taken for on complete oscillation.
This is measured in seconds(s) and represented with the
letter ‘T’.
Period
12. • This occurs when the wavelength of a sound wave is
smaller than the surface of an obstacle.
• In the case of an enclosed space, the sound waves hit
every side of the enclosure continuously until the sound
energy reduces to zero.
• The amount of waves reflected depends on the
smoothness, size, and softness of the materials of
enclosure.
• The angle of incidence of sound rays is equal to that of
the reflected rays only if the surface of the reflector is
flat. But when it is curved, the angles are different.
Reflection
13. When sound waves hit the surface of an obstacle, some
of its energy is reflected while some are lost through its
transfer to the molecules of the barrier. The lost sound
energy is said to have been absorbed by the barrier. The
thickness and nature of the material as regards its
softness and hardness influences the amount of sound
energy absorbed.
Absorption
14. This is the bending of sound when it travels from one
medium into another medium. The difference in the
composition of the two different media bends the sound
i.e. the angle of incidence changes into an angle of
refraction as it travels into the new medium.
Refraction
15. This is the scattering of waves from a surface. It occurs as
a result of the texture and hardness of the obstacle is
comparable to the wavelength of the sound. The direction
of the incident ray changes when it strikes the surface of
the obstacle. Satisfaction is achieved when sound is
heard in all direction at equal level.
Diffusion
16. When the wavelength of a sound wave is
smaller or equal to the size of the
obstacle, the sound rays tend to bend
round the edge of the obstacle thereby
turning the edge to a sound source.
Diffraction
In this phenomenon, sound wave is carried
by molecules of the obstacle through
vibration and re-emitted at the other side
irrespective of the medium. It can be
structure borne, air borne or impact sound.
Transmission
17. See some of the sound propagation principles given bellow;
The propagation of sound energy through a media via sound waves i.e. compression and rarefaction of
sound waves.
The propagation of sound depends up on the frequency of sound source and the capacity of listener ear
drum.
The propagation of sound depends up on the weather conditions like air temperature, presence of
moisture, air velocity etc.
The propagation of sound depends up on the topographical features like ground cover, hills and obstacles
between the source and receivers, type of space like open or closed.
When sound is generated in a place, it can move or spread in
all direction by air is called as propagation of sound. Sound can
propagate for origin to in all directions like a person blowing up
a balloon with his moth.
Propagation of Sound: