For projects in Bali
Auditorium acoustics and soundproofing in Bali
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. Places of worship, function halls and community buildings are large hard rooms 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 material
What you are buying, and what it fixes in Bali
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.
Places of worship, function halls and community buildings are large hard rooms carrying amplified speech and music.
Work reaching us from Bali is mostly resorts and villas, beach clubs and restaurants, spas, offices, guest rooms.
- Buildings that are only partly enclosed Open pavilions and sliding walls mean there is often no envelope to isolate. The honest answer is treating what is there and telling you what cannot be fixed.
- Beach clubs and neighbours Late trading venues beside villas and other resorts, where containment of low frequency is what keeps the operation on good terms.
- Humidity and salt destroy the wrong material PET felt does not absorb moisture, rot or feed mould. Mineral products sag here within a single season.
- 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 Bali.
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 Bali, split units everywhere, with condensers on balconies and light wells that channel noise straight back into bedrooms.
Direct fix. Mechanically fixed to the soffit or wall. Durable and simple.
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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 Bali, places of worship, function halls and community buildings are large hard rooms carrying amplified speech and music.
On a 25 to 50 mm air gap. The same panel on battens. The air gap moves absorption down in frequency at no extra material cost, and is the cheapest improvement available.
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Layer 3
Acoustic carpet and rugs
A tile carpet with a dense polyester face on a felt backing. In Bali, classrooms are hard, naturally ventilated and open to corridor and street noise, so absorption alone will not fix intelligibility.
Loose lay on tackifier. Tiles lifted individually for access under a raised floor, which is why tile beats broadloom in an office.
For a Bali 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 Bali
- Buildings that are only partly enclosed
Open pavilions and sliding walls mean there is often no envelope to isolate. The honest answer is treating what is there and telling you what cannot be fixed.
- Beach clubs and neighbours
Late trading venues beside villas and other resorts, where containment of low frequency is what keeps the operation on good terms.
- Humidity and salt destroy the wrong material
PET felt does not absorb moisture, rot or feed mould. Mineral products sag here within a single season.
- An onward leg to the island
Material arrives and then continues by road or ferry. Tell us and we pack for the second journey.
- Assembly and performance rooms
Places of worship, function halls and community buildings are large hard rooms carrying amplified speech and music.
- School and campus buildings
Classrooms are hard, naturally ventilated and open to corridor and street noise, so absorption alone will not fix intelligibility.
04 / Room by room
Where the money goes on a Bali project
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Reverberation time
Set against use. Speech and music want different numbers, and a dual use hall needs a decision. Open pavilions and sliding walls mean there is often no envelope to isolate. The honest answer is treating what is there and telling you what cannot be fixed.
- 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
- 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. Late trading venues beside villas and other resorts, where containment of low frequency is what keeps the operation on good terms.
- Wooden slat acoustic panels, 13-3, 14-2, 28-4 and 59-5
- PET felt acoustic panels, 4 to 24 mm
- Acoustic carpet and rugs, Felt
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Rear wall
The single worst surface in most halls, and the first one to treat. PET felt does not absorb moisture, rot or feed mould. Mineral products sag here within a single season.
- 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
- Acoustic carpet and rugs, 64 sq ft per pack
For a Bali interior where the finish leads, we will say plainly what each option costs you acoustically. See how we work with interior designers.
04 / Conditions
The Bali climate decides the material list
Bali 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.
On a Bali job with a consultant involved, our part is material that matches the submitted data. See working with acoustic consultants.
06 / Before you buy
Six mistakes that turn into a second fit-out
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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
This is the one that comes back as a second fit-out rather than a snag.
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Ignoring the rear wall because it is behind the audience
It sounds like a small detail until the room is finished and the complaint arrives.
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Treating it as a generic Bali job
Open pavilions and sliding walls mean there is often no envelope to isolate. The honest answer is treating what is there and telling you what cannot be fixed.
05 / Supply
Getting it to Bali, with real dates
| Ships from | Palwal, Haryana, India |
|---|---|
| Arrives at | Surabaya or Benoa, then road to site |
| Dispatch | 4 to 7 working days |
| Freight | Sea via Surabaya or Benoa |
| Support | Drawings, build-ups, BOQ and material that arrives complete |
Standard items dispatch in 4 to 7 working days. Grooved panels and custom colours take longer, and we say so before you order, not after.
Sea freight into Surabaya or Benoa, then road or ferry onward to site. Air freight for samples.
Questions from Bali projects
What makes auditorium acoustics and soundproofing different in Bali?
Places of worship, function halls and community buildings are large hard rooms carrying amplified speech and music. Open pavilions and sliding walls mean there is often no envelope to isolate. The honest answer is treating what is there and telling you what cannot be fixed.
Where should the budget go first on a Bali 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 Bali?
No. We manufacture in India and supply into Bali. 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 Bali site?
ships from: Palwal, Haryana, India, arrives at: Surabaya or Benoa, then road to site, dispatch: 4 to 7 working days. Standard items dispatch in 4 to 7 working days. 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
Send what you have. We will give you a layer by layer build-up, a bill of quantities and a date material lands, and we will flag anything in the brief that will not achieve what you want.