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Cinema and multiplex soundproofing in Los Angeles
Screens stacked beside and above each other, each running full range at high level. Bleed between auditoria is the failure everyone hears, and it is decided by the shell, not the finishes. Churches, school gyms and multipurpose halls double as performance spaces, which means a room designed for neither speech nor music has to carry both.
- Screen to screen
- Independent construction between auditoria, with services broken at the line.
- In room response
- Heavy absorption on side and rear walls so the mix is heard as intended.
- Plant and projection
- Equipment noise into the auditorium, treated at source.
- Quote
- From a plan and a section, within 48 hours
01 / The material
What this is, and what it changes in a Los Angeles room
Screens stacked beside and above each other, each running full range at high level. Bleed between auditoria is the failure everyone hears, and it is decided by the shell, not the finishes.
Churches, school gyms and multipurpose halls double as performance spaces, which means a room designed for neither speech nor music has to carry both.
Work reaching us from Los Angeles is mostly post production and mix rooms, stages, offices, light frame housing, restaurants, schools.
- Production rooms have no tolerance A mix room or ADR stage either isolates or it does not. There is no partial credit, which is why the shell gets designed before any fabric is chosen.
- Light frame and stucco Housing here is gypsum on studs behind stucco, which passes low frequency far more easily than masonry. Mass and decoupling do the work.
- Designed to move Seismic detailing means junctions that must stay flexible. An acoustic build-up has to respect that rather than bridge it rigidly.
- Screen to screen Independent construction between auditoria, with services broken at the line.
Full specification
Thickness, density, NRC by frequency, fire class, standard sizes and build-up detail for cinema soundproofing are on the main product page. This page covers what that means for a project in Los Angeles.
02 / The build-up
How the layers stack, from the structure inwards
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Layer 1
Soundproofing materials
The blocking side of the range taken together: mass loaded vinyl, resilient layers, cavity absorption and the build-ups they belong in. In Los Angeles, packaged rooftop units and ducted forced air are standard, so noise arrives through the duct rather than through the wall. Lining the first three metres of duct and treating the return path is usually the whole job.
Independent leaf. A second wall that does not touch the first. Nothing else comes close for the money.
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Layer 2
Acoustic carpet and rugs
A tile carpet with a dense polyester face on a felt backing. In Los Angeles, churches, school gyms and multipurpose halls double as performance spaces, which means a room designed for neither speech nor music has to carry both.
Zoned. Carpet in the circulation and meeting zones, hard floor elsewhere, so the treatment sits where the noise is made.
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Layer 3
PET felt acoustic panels
A rigid non-woven panel pressed from 100% polyester fibre, a large part of it recycled. In Los Angeles, public school buildings run long corridors with hard floors and lay-in tile ceilings that were chosen for cost, not for speech. Classroom reverberation and corridor spill are the two complaints, and both respond to ceiling area rather than wall panels.
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.
We would rather argue about the build-up at design stage than on site. See how we support architects.
03 / Local conditions
What decides the build-up in Los Angeles
- Production rooms have no tolerance
A mix room or ADR stage either isolates or it does not. There is no partial credit, which is why the shell gets designed before any fabric is chosen.
- Light frame and stucco
Housing here is gypsum on studs behind stucco, which passes low frequency far more easily than masonry. Mass and decoupling do the work.
- Designed to move
Seismic detailing means junctions that must stay flexible. An acoustic build-up has to respect that rather than bridge it rigidly.
- The port is right here
Direct sea into Long Beach means no cross-country leg, which keeps both the landed cost and the date predictable.
- Assembly and performance rooms
Churches, school gyms and multipurpose halls double as performance spaces, which means a room designed for neither speech nor music has to carry both.
04 / Room by room
What each space in a Los Angeles project needs
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Screen to screen
Independent construction between auditoria, with services broken at the line. A mix room or ADR stage either isolates or it does not. There is no partial credit, which is why the shell gets designed before any fabric is chosen.
- SoundBlanket mass loaded vinyl, 2100 kg per cubic metre
- Soundproofing materials, 1800 x 900 x 20 mm, 100 kg per cubic metre, NRC 0.85
- Acoustic carpet and rugs, High density polyester
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In room response
Heavy absorption on side and rear walls so the mix is heard as intended. Housing here is gypsum on studs behind stucco, which passes low frequency far more easily than masonry. Mass and decoupling do the work.
- SoundBlanket mass loaded vinyl, STC 30, 5.25 kg per sq m
- Soundproofing materials, Mass, then decoupling, then cavity absorption, then sealing
- Acoustic carpet and rugs, Felt
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Plant and projection
Equipment noise into the auditorium, treated at source. Seismic detailing means junctions that must stay flexible. An acoustic build-up has to respect that rather than bridge it rigidly.
- SoundBlanket mass loaded vinyl, STC 34, 8.4 kg per sq m
- Soundproofing materials, ASTM E90 for the barrier, ASTM C423 for the absorber
- Acoustic carpet and rugs, 64 sq ft per pack
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
Why the climate in Los Angeles changes the material, not the target
Los Angeles is hot dry summers and mild wet winters, and that narrows the material list before acoustics is discussed.
The swing between a dry summer and a wet winter moves timber. PET felt is dimensionally stable across that swing; slat panels want a stable substrate and a ventilated fixing.
The failure we design against here is seasonal movement in timber and winter damp in unheated stock.
Consultants get the raw data, not a sales sheet. That is the whole of our side of the job, and it is set out under working with acoustic consultants.
06 / Read this first
What we watch go wrong on jobs like this
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A shared service void running across the wall line
The ceiling is almost always the largest untreated surface, so leaving it out means paying for panels that cannot reach the target.
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Treating the auditorium to fix bleed from the next screen
This is the one that comes back as a second fit-out rather than a snag.
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Doors and lobbies specified late and undersized
Soundproofing fails at the gaps, not the materials. One unsealed service penetration can undo a correctly built wall.
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Treating it as a generic Los Angeles job
A mix room or ADR stage either isolates or it does not. There is no partial credit, which is why the shell gets designed before any fabric is chosen.
05 / Logistics
Getting it to Los Angeles, with real dates
| Ships from | Palwal, Haryana, India |
|---|---|
| Arrives at | Long Beach or Los Angeles, then a short road run |
| Dispatch | 4 to 7 working days |
| Freight | Sea via Long Beach |
| Support | Drawings, build-ups, BOQ and material that arrives complete |
Standard items dispatch in 4 to 7 working days. The sea leg from India is long, so plan the full door to door window into the programme. We give real dates, not optimistic ones.
Sea freight into Long Beach or Los Angeles, then a short road run to site. Air freight for samples and urgent quantities.
Questions from Los Angeles projects
What makes cinema and multiplex soundproofing different in Los Angeles?
Churches, school gyms and multipurpose halls double as performance spaces, which means a room designed for neither speech nor music has to carry both. A mix room or ADR stage either isolates or it does not. There is no partial credit, which is why the shell gets designed before any fabric is chosen.
Where should the budget go first on a Los Angeles project?
Screen to screen. Independent construction between auditoria, with services broken at the line. In room response. Heavy absorption on side and rear walls so the mix is heard as intended.
Do you have an office or installation team in Los Angeles?
No. We manufacture in India and supply into Los Angeles. 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 Los Angeles site?
ships from: Palwal, Haryana, India, arrives at: Long Beach or Los Angeles, then a short road run, dispatch: 4 to 7 working days. Standard items dispatch in 4 to 7 working days. The sea leg from India is long, so plan the full door to door window into the programme. We give real dates, not optimistic ones.
What goes wrong most often on this kind of project?
A shared service void running across the wall line. Treating the auditorium to fix bleed from the next screen.
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
Drawings in, BOQ and a delivered date out
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.