For projects in Chennai
Auditorium acoustics and soundproofing in Chennai
A large hard volume where speech falls apart long before anyone calls the room echoey. The target is intelligibility at the back row, which is a reverberation and early reflection problem, not a loudspeaker problem. Kalyana mandapams, temple halls and auditoria are very large hard volumes carrying amplified speech and music.
- Reverberation time
- Set against use. Speech and music want different numbers, and a dual use hall needs a decision.
- Early reflections
- Shaped surfaces that send energy to the rear seats rather than absorbing everything.
- Rear wall
- The single worst surface in most halls, and the first one to treat.
- Quote
- From a plan and a section, within 48 hours
01 / The product
What this material is and where it earns its place in Chennai
A large hard volume where speech falls apart long before anyone calls the room echoey. The target is intelligibility at the back row, which is a reverberation and early reflection problem, not a loudspeaker problem.
Kalyana mandapams, temple halls and auditoria are very large hard volumes carrying amplified speech and music.
Work reaching us from Chennai is mostly IT corridor offices, automotive plants, recording and dubbing rooms, hospitals, schools, hotels.
- Salt air and humidity PET felt does not absorb moisture, rot or feed mould. On a coastal site that is the difference between a ceiling that lasts and one that sags in two monsoons.
- Automotive plants Presses, conveyors and test rooms where the answer is enclosure and mass rather than absorption on a far wall.
- Dubbing and recording rooms A long established film sound industry, mostly in rooms inside occupied buildings. Isolation first, tuning second.
- Reverberation time Set against use. Speech and music want different numbers, and a dual use hall needs a decision.
Full specification
Thickness, density, NRC by frequency, fire class, standard sizes and build-up detail for auditorium acoustics are on the main product page. This page covers what that means for a project in Chennai.
02 / The build-up
How the layers stack, from the structure inwards
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Layer 1
Wood wool acoustic panels
Wood fibre bound into a rigid board with an open texture. In Chennai, split units, VRF outdoor banks and diesel generator sets sit close to occupied areas, often on the same terrace as a bedroom. Generator enclosure and condenser screening are the recurring jobs.
With a porous backing. Board over mineral backing where the room needs more than the board alone gives.
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Layer 2
PET felt acoustic panels
A rigid non-woven panel pressed from 100% polyester fibre, a large part of it recycled. In Chennai, kalyana mandapams, temple halls and auditoria are very large hard volumes carrying amplified speech and music.
Direct to wall. Panel bonded or mechanically fixed flat to the substrate. Simplest, and the weakest at low frequency.
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Layer 3
Ceiling baffles and clouds
PET felt suspended from the soffit, vertically as baffles or horizontally as clouds. In Chennai, very large school and college campuses in concrete and tile, with auditoria and seminar halls used constantly.
Mixed with services. Set out around ducts, trays and lighting rather than fighting them, coordinated from your reflected ceiling plan.
Architects working in Chennai usually need the build-up before the product. We will draw the section and mark what does the work. See how we support architects.
03 / In this market
What the buildings in Chennai do to the specification
- Salt air and humidity
PET felt does not absorb moisture, rot or feed mould. On a coastal site that is the difference between a ceiling that lasts and one that sags in two monsoons.
- Automotive plants
Presses, conveyors and test rooms where the answer is enclosure and mass rather than absorption on a far wall.
- Dubbing and recording rooms
A long established film sound industry, mostly in rooms inside occupied buildings. Isolation first, tuning second.
- Sealed against the heat
Rooms stay closed and conditioned for most of the year, so sound builds up inside instead of leaking away.
- Assembly and performance rooms
Kalyana mandapams, temple halls and auditoria are very large hard volumes carrying amplified speech and music.
- School and campus buildings
Very large school and college campuses in concrete and tile, with auditoria and seminar halls used constantly.
04 / Room by room
What each space in a Chennai project needs
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Reverberation time
Set against use. Speech and music want different numbers, and a dual use hall needs a decision. PET felt does not absorb moisture, rot or feed mould. On a coastal site that is the difference between a ceiling that lasts and one that sags in two monsoons.
- Wooden slat acoustic panels, MDF, FR MDF, HDF or HDHMR
- Ceiling baffles and clouds, 9 to 24 mm
- Acoustic carpet and rugs, High density polyester
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Early reflections
Shaped surfaces that send energy to the rear seats rather than absorbing everything. Presses, conveyors and test rooms where the answer is enclosure and mass rather than absorption on a far wall.
- Wooden slat acoustic panels, 13-3, 14-2, 28-4 and 59-5
- Ceiling baffles and clouds, Made to the drawing, standard and custom
- Acoustic carpet and rugs, Felt
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Rear wall
The single worst surface in most halls, and the first one to treat. A long established film sound industry, mostly in rooms inside occupied buildings. Isolation first, tuning second.
- Wooden slat acoustic panels, 2440 x 192 mm and 2440 x 128 mm
- Ceiling baffles and clouds, Both faces work, which is why suspended area outperforms the same area laid flat
- Acoustic carpet and rugs, 64 sq ft per pack
For a Chennai interior where the finish leads, we will say plainly what each option costs you acoustically. See how we work with interior designers.
04 / Climate and durability
Durability in Chennai, before acoustics is discussed
Chennai is warm and humid through most of the year, with a long wet season, and that narrows the material list before acoustics is discussed.
Humidity is the deciding factor. PET felt does not absorb moisture, shed fibre or feed mould, which is why it outlasts fabric-wrapped mineral wool in this climate. Wood wool and timber need a ventilated cavity behind them.
The failure we design against here is mould, sagging fabric finishes and swelling in timber.
Where a consultant is already engaged on a Chennai project, we supply to their specification and send the test reports rather than describing them. More on working with acoustic consultants.
06 / Read this first
What we watch go wrong on jobs like this
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Absorbing the whole room and losing the back rows
It sounds like a small detail until the room is finished and the complaint arrives.
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Adding speakers to fix a reverberation problem
Small on the drawing, expensive on site, and almost always found after handover.
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Ignoring the rear wall because it is behind the audience
This is the one that comes back as a second fit-out rather than a snag.
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Treating it as a generic Chennai job
PET felt does not absorb moisture, rot or feed mould. On a coastal site that is the difference between a ceiling that lasts and one that sags in two monsoons.
05 / Getting it there
What the route into Chennai actually looks like
| Made at | Our own plant, Palwal, Haryana |
|---|---|
| Reaches site in | five days |
| Dispatch | 2 to 4 working days |
| To site | five days |
| Support | Drawings, build-ups, BOQ and material that arrives complete |
Standard items dispatch in 2 to 4 working days from our plant at Palwal. Grooved panels and custom colours take longer, and we say so before you order, not after.
By road from Palwal, roughly twenty two hundred kilometres, normally five days on a dedicated truck.
Questions from Chennai projects
What makes auditorium acoustics and soundproofing different in Chennai?
Kalyana mandapams, temple halls and auditoria are very large hard volumes carrying amplified speech and music. PET felt does not absorb moisture, rot or feed mould. On a coastal site that is the difference between a ceiling that lasts and one that sags in two monsoons.
Where should the budget go first on a Chennai project?
Reverberation time. Set against use. Speech and music want different numbers, and a dual use hall needs a decision. Early reflections. Shaped surfaces that send energy to the rear seats rather than absorbing everything.
Do you have an office or installation team in Chennai?
No. We manufacture in India and supply into Chennai. We give you drawings, build-ups, a BOQ and material that arrives complete, and we will tell you plainly when a job needs a local contractor we cannot be.
How does material get to a Chennai site?
made at: Our own plant, Palwal, Haryana, reaches site in: five days, dispatch: 2 to 4 working days. Standard items dispatch in 2 to 4 working days from our plant at Palwal. Grooved panels and custom colours take longer, and we say so before you order, not after.
What goes wrong most often on this kind of project?
Absorbing the whole room and losing the back rows. Adding speakers to fix a reverberation problem.
What do you need from us to quote?
A plan, a section through the critical partition or ceiling, and what the room is for. From that we can give a build-up and a BOQ rather than a price per square foot.
Next step
Send the drawings, get a straight answer
A plan and a section is enough. We will come back with a build-up, a BOQ and a delivered date, and we will say so if what you are asking for will not work.