School Classroom Acoustics, Sound reflection and reverberation time, ACOUSTICAL SOUNDPROOFING CONTRACTORS Acoustical PRODUCTS DEALERS IN BANGALORE CHENNAI MUMBAI HYDERABAD
School Classroom Acoustics, Sound reflection and reverberation time, Acoustical Contractors and Acoustical Products dealers imported from USA
School Classroom Acoustics and ANSI Standard
ANSI Standard S 12.60 on Classroom Acoustics
On any given day, several thousand students throughout the country do not comprehend even 25 to 30 percent of the subjects that are being taught in classrooms. What happens is that too much reverberation and noise in a classroom affects a student’s capacity to listen to what is being said by their teacher.
Before we review the standard under discussion, it’s imperative to know the characteristics of sound encountered in the classroom that influences a student’s capability to listen and learn.
Direct Sound Control
The sound carrying the teacher’s voice traveling from the teacher directly to the student is known as direct sound. This is most beneficial as far as speech intelligibility is concerned because it is not hindered by any object inside the space, making it distinct and clear.
Reflected Sound
A sound that is reflected takes more time to arrive at the listener’s station compared to direct sound for the reason that its route to the listener is lengthier. Reflected sound is beneficial or otherwise depending on the delay in time.
Reverberation Time
The general effect of sound when it gets reflected in a room is known as reverberation, and the actual time taken by the reflected sound to fade out and become inaudible is termed as reverberation time. The shorter the reverberation time the better is speech intelligibility.
Background Noise
Any kind of sound produced outside the school building, like playground activity, planes and traffic can be said to be background noise. It usually enters the classroom through the windows. Inside the building, a system like H V A C and corridor noise can also produce background noise.
New ANSI Standard
ANSI Standard S12.60 is meant for classroom acoustics and deals with the issues of both background noise and reverberation time and the consequence on intelligibility of speech and specifies the maximum allowable levels on them.
As per the standard, the maximum permissible reverberation time in a furnished, unoccupied classroom having a volume below 10,000 cubic feet should be 0.6 seconds, and for a room having volume from 10,000 to 20,000 cubic feet it should be 0.7 seconds. For background noise the permissible level of sound allowed for the same classroom should not be more than 35 decibels (dBA).
The acoustical performance norms and design conditions specified by the standard is applicable right from the design and construction stages to all new learning spaces and classrooms of small and medium sizes, and, also to reconstruction and design of renovation and if practical, to the design and reconstruction of refurbished spaces as well.
Presently, the ANSI standard is not compulsory unless enforced by a regulation, code or ordinance. But, the school administration may require that the standard be complied with as per their building documents for newly constructed schools. The ANSI S 12.60 Standard is freely downloadable online.
If you want to soundproof your home or workplace you can contact Interior Game.
Our Products and services
sound absorbing wall
tiles, polyester acoustic panels, acoustic hanging panels, studio
sound absorbing panels, hanging
acoustical baffles, what does acoustic panels do, recording studio in Chennai, where to
place sound absorbing panels, ceiling
baffles sound absorption, decorative sound absorbing panels, home theater essentials, sonex, how to place sound absorbing panels, sound
isolation enclosures, acoustic
panel fabric, noise reducing carpet, modular kitchen in kochi, suspended
sound absorbing panels, where to
place acoustic panels in home theater, textile design studios in
Bangalore, inter-techno, noise
reduction window inserts, window
inserts for noise reduction, decorative sound absorbing wall
panels, outdoor sound absorbing
panels, interior designers in Trivandrum, thick foam underlay, acoustic
sound absorbing panels, how to fix
acoustic panels to wall, studio acoustic panels, apartments interior designers in
Bangalore, sound absorbing panels for ceilings, hanging acoustic panels, roof
windows with integral blinds, sound
absorbing foam, how do sound absorbing panels work, acoustic
panels for studio, absorbing sound
with acoustic panels, sound absorbing acoustic panels, low cost interior designers in
Hyderabad, hanging sound baffles, how many acoustic panels do i need, auditorium
acoustic panels, acoustic
isolation panels, residential interior designers in Bangalore, large sound absorbing panels, sound
absorbent, how to make acoustic
sound panels, sound absorption panels, sound absorption panels for home, Interior
design kochi, sound deadening wall
covering, modern sound absorbing panels, foam soundproofing, acoustic
consultants dubai, commercial
interiors in Chennai, best material for acoustic panels, acoustic sound panels for walls, sound
absorbing panels for home, acoustic
sound absorbing wall panels, sound absorbing ceiling panels, acoustic sound baffles, sound
level meter, do sound absorbing
panels work, sound absorbing ceiling, buy sound absorbing panels, where
to buy sound absorbing panels, best
interior designers in Hyderabad, interior designs in Hyderabad, soundproofing foam, sound
absorbing fabric, fabric for
acoustic panels, best interior designers in Coimbatore, what do acoustic panels do, fabric
for sound absorption panels, sound
absorbing acoustic panel, does acoustic foam block sound, sound deadening wall coverings, industrial
sound absorbing panels, sound
dampening wall panels, office sound absorbing panels, sound dampening panels, soundproofing
walls UK, fiber cement
tiles, interior decorator in Chennai, interior designers in kochi, top
10 interior designers in Bangalore, conference
acoustics, fabric acoustic panels, acoustic panels for apartment, home
interior designers in Kerala, industrial
noise control products, sound absorbing wall panels, what are acoustic panels used for, acoustic
foam UK, acoustic foam, acoustic
board suppliers, wooden flooring
underlays and moisture barriers,