For projects in Rajkot
Auditorium acoustics and soundproofing in Rajkot
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. Auditoriums, banquet halls and places of worship are large hard volumes in concrete and stone where speech falls apart long before anyone calls the room echoey.
- 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 / What it is
The product, described honestly, for a Rajkot brief
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.
Auditoriums, banquet halls and places of worship are large hard volumes in concrete and stone where speech falls apart long before anyone calls the room echoey.
Work reaching us from Rajkot is mostly foundries and machining halls, engineering units, offices, colleges, hospitals, showrooms.
- Foundry noise is structural Furnaces, hammers and heavy machine tools put energy into the floor. Isolation and mass address that, and absorption does not.
- Machining halls Continuous machine noise where instructions and alarms still have to be understood. Targeted absorption fixes intelligibility.
- Heat inside the building PET felt does not sag, shed fibre or degrade at high temperature, which matters in a foundry roof void.
- 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 Rajkot.
02 / The build-up
What goes where, from the structure in
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Layer 1
PET felt acoustic panels
A rigid non-woven panel pressed from 100% polyester fibre, a large part of it recycled. In Rajkot, heavy industrial plant across the state, so compressors, presses and generator sets sit close to offices and canteens inside the same building.
Over a porous backing. Panel over mineral or PET backing where the room needs genuine low mid control.
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Layer 2
Ceiling baffles and clouds
PET felt suspended from the soffit, vertically as baffles or horizontally as clouds. In Rajkot, auditoriums, banquet halls and places of worship are large hard volumes in concrete and stone where speech falls apart long before anyone calls the room echoey.
Vertical baffles. Hung on edge in rows. Both faces absorb, so coverage figures based on plan area understate them.
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Layer 3
Acoustic carpet and rugs
A tile carpet with a dense polyester face on a felt backing. In Rajkot, large school and college campuses in concrete and tile, with assembly halls and auditoria in constant use.
Zoned. Carpet in the circulation and meeting zones, hard floor elsewhere, so the treatment sits where the noise is made.
For a Rajkot practice, the useful thing is a detail you can put in a drawing set, not a brochure. See how we support architects.
03 / In this market
What decides the build-up in Rajkot
- Foundry noise is structural
Furnaces, hammers and heavy machine tools put energy into the floor. Isolation and mass address that, and absorption does not.
- Machining halls
Continuous machine noise where instructions and alarms still have to be understood. Targeted absorption fixes intelligibility.
- Heat inside the building
PET felt does not sag, shed fibre or degrade at high temperature, which matters in a foundry roof void.
- Two to three days by road
A dedicated truck from Palwal, with samples sent ahead of the order.
- Assembly and performance rooms
Auditoriums, banquet halls and places of worship are large hard volumes in concrete and stone where speech falls apart long before anyone calls the room echoey.
- School and campus buildings
Large school and college campuses in concrete and tile, with assembly halls and auditoria in constant use.
04 / Room by room
Room by room, on a typical Rajkot job
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Reverberation time
Set against use. Speech and music want different numbers, and a dual use hall needs a decision. Furnaces, hammers and heavy machine tools put energy into the floor. Isolation and mass address that, and absorption does not.
- Wooden slat acoustic panels, MDF, FR MDF, HDF or HDHMR
- PET felt acoustic panels, 9, 12, 18 and 24 mm standard, tolerance plus or minus 5 percent
- Ceiling baffles and clouds, Made to the drawing, standard and custom
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Early reflections
Shaped surfaces that send energy to the rear seats rather than absorbing everything. Continuous machine noise where instructions and alarms still have to be understood. Targeted absorption fixes intelligibility.
- Wooden slat acoustic panels, 13-3, 14-2, 28-4 and 59-5
- PET felt acoustic panels, 4 to 24 mm
- Ceiling baffles and clouds, Both faces work, which is why suspended area outperforms the same area laid flat
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Rear wall
The single worst surface in most halls, and the first one to treat. PET felt does not sag, shed fibre or degrade at high temperature, which matters in a foundry roof void.
- Wooden slat acoustic panels, 2440 x 192 mm and 2440 x 128 mm
- PET felt acoustic panels, 1220 x 2440 mm standard, 4 x 8 ft
- Ceiling baffles and clouds, ASTM C423
Interior designers tend to arrive with the look already decided. We will tell you which finish gets there without losing the acoustics. See how we work with interior designers.
04 / Conditions
What the Rajkot climate rules in and rules out
Rajkot is hot and dry for most of the year, with dust and high daytime surface temperatures, and that narrows the material list before acoustics is discussed.
Dust is the enemy of open-cell products. PET felt does not shed, does not hold dust in the way fabric-wrapped glass wool does, and wipes down. Timber needs a stable indoor RH or it moves.
The failure we design against here is dust ingress and thermal movement in long runs.
Where a consultant is already engaged on a Rajkot project, we supply to their specification and send the test reports rather than describing them. More on working with acoustic consultants.
06 / Worth knowing
The six errors that cost the most
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Absorbing the whole room and losing the back rows
This is the one that comes back as a second fit-out rather than a snag.
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Adding speakers to fix a reverberation problem
It sounds like a small detail until the room is finished and the complaint arrives.
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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 Rajkot job
Furnaces, hammers and heavy machine tools put energy into the floor. Isolation and mass address that, and absorption does not.
05 / Route to site
What the route into Rajkot actually looks like
| Made at | Our own plant, Palwal, Haryana |
|---|---|
| Reaches site in | two to three days |
| Dispatch | 2 to 4 working days |
| To site | two to three 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 one thousand kilometres, normally two to three days on a dedicated truck.
Questions from Rajkot projects
What makes auditorium acoustics and soundproofing different in Rajkot?
Auditoriums, banquet halls and places of worship are large hard volumes in concrete and stone where speech falls apart long before anyone calls the room echoey. Furnaces, hammers and heavy machine tools put energy into the floor. Isolation and mass address that, and absorption does not.
Where should the budget go first on a Rajkot 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 Rajkot?
No. We manufacture in India and supply into Rajkot. 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 Rajkot site?
made at: Our own plant, Palwal, Haryana, reaches site in: two to three 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
Tell us the room, we will tell you the build-up
We quote from drawings, not from a square foot rate. Send a plan and the section through the critical wall or ceiling and you will get something you can actually build from.