Cinépolis Mumbai Multiplex Soundproofing Project

Multiplex

Cinépolis Mumbai Floor & Wall Sound Isolation Using SoundBlanket®

  • ClientCinépolis, Mumbai
  • ApplicationMultiplex sound isolation – floors & walls
  • SectorMultiplex

Cinema-Grade Sound Isolation with Zero Disturbance

Cinépolis Mumbai required a high-performance, space-efficient soundproofing system to prevent sound leakage between adjacent auditoriums running simultaneous screenings. MMT Acoustix supplied SoundBlanket® 4mm

for floor and wall isolation, creating a cinema environment where immersive audio stays contained within each hall without disturbing neighbouring screens or public areas.

Objective
Eliminate sound transfer between cinema halls during simultaneous shows
Product Supplied
SoundBlanket® 4mm – High-STC Noise Barrier
Key System Benefits
  • Ultra-thin membrane suitable beneath floors and behind wall panels.
  • Strong STC improvement in multiplex constructions.
  • Reduces airborne and impact noise transfer between auditoriums.
  • Ideal for high-decibel environments like cinemas.
Focus
Multiplex Acoustics / Sound Isolation / Commercial Cinemas

01 / The brief

Preventing Sound Leakage Across Cinema Halls

As a leading multiplex chain, Cinépolis required a system that ensures:

SoundBlanket installation for multiplex floors and walls
  • Zero sound spill between auditoriums playing different titles.

  • Containment of cinema audio to avoid disturbance in lobbies and public areas.

  • Compliance with acoustic standards for commercial theatres.

  • A soundproofing solution thin enough to fit within existing interior profiles.

02 / The approach

High-STC SoundBlanket® System for Floors & Walls

Deliver effective sound containment to create an uninterrupted viewing experience while protecting the premium interior aesthetic.

  • 01

    Floor Isolation

    • SoundBlanket® 4mm installed beneath flooring systems.
    • Reduced airborne and impact noise transfer between stacked halls.
    • Maintained floor height and finish consistency.
  • 02

    Wall Sound Containment

    • SoundBlanket® placed behind wall panels inside each auditorium.
    • Blocked high-decibel cinema sound from leaking out.
    • Preserved premium cinema wall finishes.
  • 03

    Silent, Seamless Aesthetics

    • Ultra-thin isolation ensured no change in interior design.
    • Acoustic performance delivered without visible materials.
    • Highly efficient installation supporting deadlines.

03 / Products and Installation

SoundBlanket® 4mm – Slim Barrier, Big Impact

  • SoundBlanket® 4mm

    Ultra-dense noise barrier used under flooring and behind wall panels to block cinema audio transmission.

  • High STC Performance

    Tested for excellent airborne sound reduction even at low thickness.

  • Space-Efficient

    Ideal for multiplexes where every millimetre of interior build-up matters.

  • Fast & Clean Installation

    Enabled seamless integration during construction and renovation phases without delays.

04 / Outcome

Uninterrupted Cinema Experience

  • Zero Sound Leakage

    No audible transfer between adjacent screens, even during simultaneous high-volume shows.

  • Enhanced Audience Experience

    Sound remains contained inside each auditorium, creating a pure cinema atmosphere.

  • Meets Multiplex Standards

    Achieved reliable STC performance suitable for commercial theatre requirements.

What made it work

Cinema-Grade Soundproofing for a Premium Multiplex

  • Treated floors and walls across multiple auditoriums.
  • Delivered high acoustic performance without changing interior finishes.
  • SoundBlanket® 4mm ensured strong isolation despite minimal build-up thickness.
  • Guaranteed a consistent, immersive viewer experience in every screen.
Cinépolis Mumbai: project at a glance
ClientCinépolis, Mumbai
ApplicationMultiplex sound isolation – floors & walls
ObjectiveEliminate sound transfer between cinema halls during simultaneous shows
Product SuppliedSoundBlanket® 4mm – High-STC Noise Barrier
Key System BenefitsUltra-thin membrane suitable beneath floors and behind wall panels.; Strong STC improvement in multiplex constructions.; Reduces airborne and impact noise transfer between auditoriums.; Ideal for high-decibel environments like cinemas.

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Frequently Asked Questions

What was the acoustic problem at Cinepolis Mumbai?

Sound transfer between adjacent auditoriums running simultaneous screenings. Cinema audio is high level and heavily weighted to low frequency, so bass from one screen was audible in the next, which is the complaint that reaches a multiplex operator first.

What was supplied?

SoundBlanket 4 mm, a high-STC noise barrier at STC 34 tested to ASTM E90, applied beneath floors and behind wall panels across the auditorium envelope.

Why use a thin membrane rather than building heavier walls?

Because floor area is revenue in a multiplex. At 4 mm the membrane adds substantial mass without taking seat rows or reducing screen dimensions, and it fits behind the interior finish. A heavier masonry solution would have cost floor space the operator could not give up.

Does the membrane also handle impact noise?

It reduces airborne and impact transfer when installed beneath the floor finish, because it damps the deck rather than letting it radiate. For heavy structure-borne paths a resilient isolation layer is added alongside it.

Can this system be applied to an existing multiplex?

Yes, and it is normally done during refurbishment because the membrane sits behind finishes rather than within the structure. Coverage is set by which walls and floors are shared between screens. Send the drawings, the room volumes and the target NRC or STC, and the system is specified against those figures with test reports issued alongside the supply.

Who manufactures cinema sound isolation systems in India?

MMTPL (Mahabir Multi Tech Private Limited) manufactures the full range at its Palwal plant in Haryana, India, and supplies architects, consultants and turnkey contractors in India and 25+ export markets.