Projects &
Case Studies
JW Marriott — Ballrooms, Suites & Plant Room Acoustic Overhaul
One of India's most recognised luxury hotel brands required a full acoustic treatment across three zones — a grand ballroom with RT60 exceeding 2.4s, 40+ guest suites needing STC upgrade, and mechanical plant rooms transmitting structure-borne noise through slabs to occupied floors.
Ballroom RT60: 2.4s at 500Hz. Suite party walls at STC 38. Plant rooms on floors 3 & 7 transmitting tonal low-frequency noise to all upper floors.
Ballroom: Echsorbix® Mirage Grooved across 70% of wall area + SoundaXe® timber baffles suspended overhead — RT60 reduced to 0.85s.
Suites: SoundBlanket® MLV 7mm + BassBloc® 50 overlay on party walls — STC 52 achieved.
Plant rooms: MLV + BassBloc® composite wrap with floating slab mounts.
Guest noise complaints reduced to near-zero. Ballroom now supports spoken conferences without PA reinforcement.
Three acoustically distinct zones in a single resort: a spa needing near-silence, a busy open restaurant, and a high-impact gym generating floor vibration. Each required a different treatment while maintaining luxury finishes.
4,000 sq. ft. nightclub inside a hotel complex — sound bleed to adjacent hotel rooms was the primary compliance risk. Interior acoustic design also required to enhance the low-frequency DJ experience while controlling build-up at the bar.
An 800-seat grand ballroom and six breakout conference rooms in one of South India's most prestigious hotels. Ballroom reverberation was unacceptable for conferences. Breakout rooms shared thin partitions with insufficient STC for concurrent meetings.
Floors 8–18 of a 5-star tower facing a busy arterial road. Guests in road-facing rooms reporting external traffic noise complaints despite double glazing. HVAC noise from ceiling-mounted units also affecting sleep quality.
A heritage wing refurbishment of 24 suites and a ground-floor lounge bar. Sea-facing suites required acoustic curtains that complemented the premium interior aesthetic. The lounge bar needed treatment to reduce echo without altering the existing period-style ceiling.
Mr. Rohit Jain's restaurant group required acoustic standardisation across four new outlets — matching a defined in-venue sound experience target while meeting local fire codes. Live music nights required sound isolation to comply with local noise ordinances.
An open-kitchen format restaurant with polished concrete floors and glass partitions. Kitchen noise bleed into the dining area, combined with crowd reverberation, was making conversations difficult. The designer required acoustic products that doubled as visual feature elements.
A rooftop bar serving 180+ covers faced a Municipal Corporation noise compliance notice — measured sound levels at the building perimeter were exceeding night-time limits. The treatment had to be achievable on an occupied open rooftop with no permanent structure modification permitted.
A standalone banquet complex running three halls simultaneously — each capable of hosting 500+ guests with live music. Sound bleed between halls was causing event conflicts. Individual hall reverberation was making speech unintelligible during ceremony portions.
Guests on floors 4–6 were reporting intrusive low-frequency hum from a rooftop HVAC plant. Internal investigations also identified a diesel generator on the basement level transmitting vibration through the building core. Both issues required non-invasive remediation without shutting the hotel.
60 over-water villas with thin timber floor construction transmitting ocean wave impact noise and adjacent-villa sounds. Products needed to be lightweight for barge logistics, humidity-resistant, and aesthetically matched to the resort's tropical luxury interior scheme.
Network18 — Podcast & Video Production Studio Fit-Out
5 broadcast-standard podcast and video studios in a commercial office complex in Noida. Requirements: near-anechoic on-camera environments, complete isolation between studios running simultaneously, and a finish quality acceptable for 4K on-camera broadcast.
Five studios in a shared office building — HVAC noise, floor impact from upper levels, and mutual sound bleed between adjacent studios all required resolution within a tight commercial fit-out programme.
Walls: SoundBlanket® MLV on all party walls with BassBloc® overlay. Ceiling: Floating ceiling grid with MLV membrane. Absorption: Alien and Curve foam on back and side walls. ColorMute felt panels used as feature absorption on on-camera walls.
Background noise floor under broadcast specification. All 5 studios operational simultaneously with no cross-contamination. Visual finish approved for 4K broadcast use.
1,200 sq. ft. commercial recording studio in a mid-floor apartment block. Full structural isolation from the building, bass-controlled live room acoustics, and a control room with flat monitoring conditions — all within a residential building's load limits.
Red FM's studio fit-outs across Delhi, Mumbai, and Bangalore required standardised acoustic treatment meeting broadcast noise floor specifications — below 30 dB(A) NR — while working with existing commercial office spaces with hard concrete and glass surfaces.
A professional music producer working from a 280 sq. ft. spare room. Low-frequency bass buildup in corners, flutter echo between parallel walls, and insufficient isolation from family noise were preventing professional-quality recordings.
A 200 sq. ft. content creation studio for a YouTube channel with 4M+ subscribers. The creator needed a visually striking background wall that also performed acoustically — and isolation from apartment corridor noise that was appearing in recordings.
A 450 sq. ft. dubbing and Dolby mix room for an OTT production house. The mix room required flat-frequency response from 50 Hz to 16 kHz, precise bass trap placement to control room modes, and complete isolation from adjacent recording booths.
A dedicated podcast recording facility with 8 individual studios available for hire. The project required identical acoustic performance across all 8 rooms, brand-consistent visual finishes, and a complete package that could be installed within a 30-day fit-out window.
A regional Telugu news channel building its first owned broadcast facility. The on-air studio required broadcast-specification acoustic treatment with 4K-ready visual finishes. Four adjacent edit suites required mutual isolation and controlled listening environments.
A 12-room rehearsal facility for musicians and bands — each room designed for live full-band rehearsal at up to 95 dB SPL. Key challenge: mutual isolation between adjacent rooms so that rehearsals could run simultaneously, combined with controlled internal acoustics that didn't make rooms sound dead.
16 individual music practice rooms in a purpose-built music school — ranging from piano rooms to string ensemble spaces. Each room needed controlled acoustic response suited to its intended instrument family, with mutual isolation so that simultaneous practice sessions didn't interfere.
A Singapore-based recording studio operator sourced MMT Acoustix products for a studio expansion after finding Indian acoustic foam pricing offered 40% cost advantage over local suppliers without compromising on NRC-rated performance. Documentation and DHL express shipping were required to meet the project timeline.
HDFC Bank's internal communications team required a dedicated filming and live-streaming studio for internal broadcasts, training videos, and leadership town halls — to be built inside an occupied office floor. Background noise from the open office, HVAC, and elevator shafts were the main acoustic challenges.
Adani Group — 45,000 Sq. Ft. Corporate HQ Acoustic Fit-Out
A premium open-plan headquarters with all-glass and concrete construction. RT60 of 2.1 seconds across the main floor made productive communication impossible. The specification required acoustically superior products that complemented a premium interior design scheme with no compromise on aesthetics.
Glass curtain wall construction with polished concrete floor. Conference rooms with glazed partitions leaking audio to open floor. 2.1s RT60 causing severe echo on calls and video conferences.
Echsorbix® Mirage Grooved panels on conference room walls. SoundaXe® timber panels as feature absorption on open-floor pillars. Ceiling baffles suspended at 3m intervals across open plan. MLV added to glazed conference room partitions.
Open floor RT60 reduced from 2.1s to 0.7s. Speech Privacy Index in conference rooms went from 0.48 to 0.81. No further AV system upgrade required.
28,000 sq. ft. co-working space across two floors in a Business Bay commercial tower — 400+ member workstations, 22 private meeting rooms, and a podcast studio. Single-source acoustic supplier required capable of shipping to Dubai with customs documentation and third-party test data.
Byju's required acoustic treatment for their flagship learning centre — 80 small-group tutoring rooms, a 400-seat lecture hall, and open collaborative work areas. The learning environment demanded particularly high speech intelligibility (STI ≥ 0.75) in all instructional spaces.
A senior law firm's private client consultation rooms were failing speech privacy requirements — conversations in meeting rooms were audible in the adjacent waiting area and corridor, creating confidentiality concerns. The treatment had to be invisible within the firm's formal interior.
A 15,000 sq. ft. open trading floor with 180+ workstations — noise levels regularly exceeding 72 dB(A) due to simultaneous phone calls, creating stress and reducing accuracy. The treatment had to be installed over a weekend without disrupting trading operations.
A government ministry's official conference and briefing suite required acoustic upgrade to support secure, intelligible meetings — existing room had RT60 of 1.6s and the ministry had received complaints of echo during cabinet briefings. All products required fire certification for government installation.
Tech Mahindra required a standardised acoustic specification for open-plan offices across three buildings on a Pune campus — totalling 90,000 sq. ft. The challenge was delivering consistent acoustic outcomes across buildings constructed at different times with different structural materials.
A 6,000 sq. ft. office for a Series B fintech startup — all-exposed concrete and metal construction for an industrial aesthetic. Acoustic treatment needed to be visually compatible with the raw design language while reducing RT60 enough to support 60 people in an open workspace.
Dr. R. Menon's multi-specialty hospital's administrative floors and OPD waiting areas required acoustic treatment to reduce ambient noise levels — clinical research shows elevated hospital noise increases patient stress and reduces staff efficiency. All products required to meet hospital fire safety and infection control standards.
A Malaysian architectural firm specified MMT Acoustix products for the executive floor fit-out of a Grade A commercial tower. Indian-manufactured products offered a 35% cost saving against European alternatives while meeting the required ASTM and EN acoustic standards. Products were air-freighted to Kuala Lumpur with full documentation.
A foreign embassy required acoustic upgrades to three secure consultation rooms used for visa interviews and confidential diplomatic meetings. Speech privacy requirements were stringent — conversations had to be completely inaudible from adjoining waiting areas. All products required fire certification and documentation for embassy security protocols.
Pathways World School — 600-Seat Auditorium Acoustic Treatment
A 600-seat school auditorium designed for multi-purpose use — assemblies, theatrical performances, and examinations. Post-construction RT60 of 2.8 seconds was far beyond the acceptable range for speech. The treatment had to be completely non-invasive to the existing architecture and meet fire safety standards for an occupied educational facility.
RT60 of 2.8s. Speech Transmission Index of 0.39 (Poor). The ceiling was a fixed architectural feature — no penetration permitted. All materials needed to meet BS 476 fire standard for educational occupancy.
Echsorbix® ceiling baffles on wire suspension — zero ceiling penetration. Wood wool panels across rear and side walls. ColorMute solid felt panels on the lower stage surround. Ceiling clouds over the seating zone targeted for mid-frequency absorption.
RT60 from 2.8s to 1.1s. STI from 0.39 (Poor) to 0.76 (Good). Students in the back row reported full speech intelligibility without PA — first time in the school's history.
12 lecture halls seating 100–300 students each — bare concrete walls, no acoustic treatment. Student feedback cited inability to hear clearly beyond row 8. Required cost-effective bulk supply, fast installation within an academic calendar window, and fire-rated products.
IIT Delhi's 1,200-seat main auditorium — a heritage building from the 1960s — had never received acoustic treatment. Used for convocations, public lectures, and cultural events, its RT60 of 3.1s made recorded speech almost unintelligible. The building's heritage status restricted permanent modifications.
Delhi Public School Society specified a standardised acoustic product set for auditoriums and science labs across 8 campuses. Each campus had a different auditorium design — the specification needed to be adaptable while delivering consistent acoustic outcomes within a defined budget per seat.
Eight seminar rooms and four open-plan computer labs in Prof. Anand Kumar's engineering college's newer academic block. The concrete-block construction had left seminar rooms with RT60 exceeding 1.8s, making group project discussions and visiting faculty lectures difficult.
Mr. Govind Prasad's coaching academy runs large-format classrooms seating 200–400 students for competitive exam preparation. Voice fatigue among faculty was reported as a major concern — teachers were straining to be heard even with PA systems due to the reverberant rooms generating excessive early reflections.
A 400-seat multi-purpose hall for an international school required acoustic treatment tuned for four uses: morning assembly (speech), drama productions (variable), sports days (high ambient noise), and external hire events. A single fixed acoustic scheme had to serve all four purposes adequately.
Research consistently shows elevated classroom noise negatively impacts language development in children under 5. Ms. Pooja Nair's preschool group required a safe, low-VOC acoustic treatment that would reduce reverberation in their playrooms — making teacher voices clearer and reducing the stress response in young children from noise exposure.
Clinical seminar rooms in a medical college used for case presentations, anatomy discussions, and visiting surgeon lectures. The rooms contained significant stainless steel equipment and tiled surfaces — creating a highly reverberant environment. All products required medical-grade hygiene certification.
A digital learning platform filming 200+ hours of curriculum content annually required acoustic treatment for 12 filming studios that would simultaneously function as live teaching classrooms for on-campus students. Each room needed to serve both camera-recording and in-person acoustic requirements.
India's first high-performance sports training institute required acoustic treatment for a 600-seat indoor multi-sport arena used for wrestling, boxing, and athletics. Crowd noise, PA announcements, and structure-borne impact from the sports floor created a complex reverberant environment with RT60 exceeding 3.5 seconds.
ISRO — Mission Control Room Acoustic Treatment
Mission-critical control and monitoring rooms at ISRO's Bengaluru facility required precise acoustic environments — extremely low reverberation, high speech intelligibility for multi-operator coordination, and protection of sensitive electronic equipment from vibration-induced noise. Standard commercial acoustic solutions were insufficient given the precision and fire-safety requirements.
Control rooms require RT60 below 0.4s for multi-operator intelligibility. Electronics sensitive to vibration. All materials required AERB and fire authority clearance. Standard commercial acoustic suppliers could not provide the necessary test documentation.
ARAI-certified acoustic foam on all wall surfaces. BassBloc® corner placement at all eight room corners. MLV decoupling layer on exterior wall. Door seals for airtight acoustic closure. All products supplied with ARAI and SGS test certificates.
RT60 of 0.28s achieved — well below the 0.4s specification. All AERB clearances obtained. MMTPL retained as approved acoustic material supplier for subsequent ISRO facility projects.
Kirloskar required certified acoustic lining for diesel generator enclosures across multiple kVA ratings — achieving CPCB noise emission norms while withstanding thermal and vibration demands. The lining needed to be fire-rated, oil-resistant, and installable at production-line speed.
Mr. Rajan Mehta's construction equipment manufacturing plant — operator cabin noise levels were exceeding noise exposure limits set under the Machinery Directive. The acoustic lining had to reduce in-cabin noise from 88 dB(A) to below 80 dB(A) while withstanding agricultural operating environments — dust, vibration, heat, and oil exposure.
NTPC's thermal power plant control room required acoustic treatment to reduce ambient noise from turbine hall bleed-through and HVAC systems — improving operator communication and focus in a safety-critical environment. All products required IS and fire authority certification.
A Tier III data centre's cooling plant and UPS room generated 92 dB(A) at 1 metre — violating occupational noise regulations for maintenance engineers. A non-combustible acoustic barrier was required that wouldn't compromise maintenance access or airflow around critical equipment.
An automotive OEM's engine test cell required acoustic lining to achieve a semi-anechoic environment for NVH (Noise, Vibration and Harshness) measurements. The lining had to withstand engine exhaust temperatures and oil vapour while delivering NRC ≥ 0.90 from 250 Hz to 4 kHz.
A government defence research facility required acoustic lining for a small anechoic test chamber used in acoustic signature testing of munitions components. Products required DRDO technical approval, fire certification to military standards, and NRC ≥ 0.95 at low frequencies.
A pharmaceutical production floor housing 12 high-speed tablet press machines generating 98 dB(A) in aggregate. Operators were exceeding daily noise exposure limits. All acoustic treatment had to meet GMP (Good Manufacturing Practice) standards — no loose fibres, cleanable surfaces, and FDA-compatible materials.
MMTPL's legacy OEM relationship with Hero MotoCorp for reticulated technical foam air filters — a product category where MMTPL became India's first and largest manufacturer. The filter foam requires precise pore structure and density to meet Hero's engine performance specifications across multiple two-wheeler models.
Mr. Naresh Kumar's engine enclosure manufacturing plant required fire-rated acoustic foam lining for large diesel engine and generator enclosures. The foam needed to meet global OEM thermal and acoustic specifications — requiring ARAI certification and dimensional consistency below ±2mm.
Indian Railways' Vande Bharat Express coaches required lightweight, fire-rated acoustic and thermal lining to reduce in-coach noise from track, wheel, and engine sources — improving passenger comfort on semi-high-speed routes. Lining had to meet RDSO fire and weight specifications and be installable on the coach production line at ICF.
VOX Cinemas — Multi-Screen Acoustic Package UAE & Saudi Arabia
VOX Cinemas required a complete acoustic solution for their Middle East expansion — preventing sound bleed between adjacent screens, controlling lobby reverberation, and meeting international cinema specifications with documented fire rating compliance for UAE and KSA building authorities.
International cinema spec required STC ≥ 55 between screens, NRC ≥ 0.90 within screen rooms, and Class B fire rating across all interior acoustic materials for UAE Civil Defence compliance.
SoundBlanket® MLV 7mm + BassBloc® 100 on all party walls between screens. Fibreglass ceiling panels on screen room ceilings. Echsorbix® felt on screen surround walls. SGS fire rating documentation supplied for UAE CDA submission.
STC 58 between screens — exceeding specification. Zero cross-screen noise complaints in first operating year. UAE CDA fire approval granted on first submission.
PVR Cinemas specified MMT Acoustix products for the acoustic fit-out of their Saket multiplex expansion — 8 screens with varying capacities from 80 to 380 seats. Screen-to-screen isolation, lobby absorption, and fire rating compliance for NDMC were the key specification requirements.
A 420 sq. ft. home theatre in a luxury villa — Dolby Atmos 7.2.4 system. Achieving cinema-grade isolation so that film viewing at reference levels (85 dB SPL) wouldn't disturb bedrooms above and adjacent, while creating a properly controlled acoustic environment for Atmos mix playback.
Mr. Krishnamoorthy's 12-screen multiplex in South India — spanning 3 floors with stacked screen configurations creating complex structure-borne noise transmission paths. Tamil Nadu fire authority (TNFRS) certification required for all acoustic materials.
India's first dedicated professional e-sports arena — 200 gaming stations with tournament commentary broadcast. The design required controlled acoustic zones: silent competitive gaming areas, a live commentary studio, and a spectator lounge that could experience crowd energy. Three acoustically distinct zones in one space.
A private client in Jeddah building a 300 sq. ft. Dolby Atmos home theatre in a residential villa. The interior designer specified MMT Acoustix acoustic foam and felt products after seeing them installed in a Mumbai project — requiring air freight with Aramex to Saudi Arabia and Arabic-language installation guidance.
Dharma Productions required a 50-seat private screening room for dailies review and internal premiere screenings. The room needed to deliver a reference-quality listening environment — flat frequency response, controlled RT60, and complete sound isolation from adjacent post-production suites operating simultaneously.
A 350 sq. ft. home theatre within a luxury high-rise apartment — shared walls and floor with neighbouring apartments. The client required isolation sufficient to watch films at 80 dB(A) without complaints from neighbours, plus a controlled acoustic environment for a 4K laser projector system with 7.1 surround.
A new theme park attraction featuring an immersive audio-visual experience required both acoustic isolation (to prevent sound from the attraction disturbing adjacent zones) and interior treatment optimised for a 360° spatial audio system. The room transitions 400+ visitors per hour — durability and easy maintenance were priorities.
A classic single-screen cinema in Nagpur undertaking a premium rebrand — converting a 600-seat hall into a 250-seat luxury format. The acoustic renovation was the centrepiece of the rebrand: replacing the old asbestos-board panels with a modern acoustic system and bringing the hall to Dolby Digital standard.
Ms. Neha Sharma's 350-seat performance auditorium in New Delhi needed acoustic treatment to serve both unamplified classical music (requiring RT60 ~1.6s) and spoken-word events (requiring RT60 ~0.8s). The treatment had to work within the existing heritage interior and be visually sensitive to the architectural language of the space.
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