Wooden, fabric, wood-fiber, composite, PET-felt and metal acoustic wall panels - NRC up to 0.95, ISO 9001/14001/45001 certified, 500+ projects delivered across India. One manufacturer, every material, PAN-India survey-to-install.
Open-plan offices buzz with conversation. Conference rooms echo on video calls. School classrooms muddy every word the teacher says. Restaurants are too loud for comfortable dining. Recording studios produce coloured, reverberant recordings that frustrate engineers. Auditoriums lose clarity at the back of the hall.
The solution in every case starts with the same product: acoustic wall panels - engineered surfaces that absorb sound energy, control reverberation, reduce echo, and transform how a space sounds and feels.
Ecotone Acoustic Limited manufactures the full range of acoustic wall panels available in India - grooved wooden slats, perforated wooden panels, wood wool fibre boards, fabric-wrapped panels, CNC PET felt panels, micro-perforated panels, metal acoustic panels, and composite acoustic panels - all under a single roof at our Greater Noida facility. Every panel is independently NRC-tested, fire-rated, and available with complete technical documentation for green building certification, architectural specification, and contractor BOQs.
This guide covers every product in our acoustic wall panel range, what each one does, where each one belongs, and how to specify, buy, and install the right solution for your project.
Sound is energy. When a speaker speaks, machinery operates, or music plays, the sound source creates pressure waves that travel outward in all directions. When those waves strike a hard surface - concrete, glass, plasterboard, marble - the vast majority of the energy reflects back into the room. Multiple reflections combine, overlap, and persist, creating the reverberation, echo, and noise buildup that makes spaces acoustically uncomfortable.
Acoustic wall panels interrupt this cycle. They are constructed from materials - fibrous mineral wool, open-cell polyester fibre, natural wood fibre, or resonant panel systems - that do not reflect sound. Instead, they convert the kinetic energy of the sound wave into a negligible amount of heat through friction between air molecules and the panel's internal structure. The reflected energy returning to the room is dramatically reduced. Reverberation time shortens. Speech clarity improves. Background noise levels fall. The space becomes easier to work, learn, and communicate in.
NRC is a number between 0.0 and 1.0 representing the average proportion of sound absorbed at four standard frequencies (250 Hz, 500 Hz, 1000 Hz, and 2000 Hz). A panel rated NRC 0.90 absorbs 90% of the sound striking it. An unpainted concrete wall has an NRC of just 0.02 - it absorbs almost nothing. Ecotone Acoustic Limited's acoustic wall panels achieve NRC values from 0.65 to 1.0 depending on product type, thickness, and installation configuration.
Two panels can look identical and perform completely differently. The backing, cavity depth and infill density behind the face are what actually deliver the rated NRC - see the installation section below for the specification detail that's most often skipped.
Pick your space below to see the reflection problem, the wall coverage benchmark our design team works to, and which panel system fits.
Every panel below is independently NRC-tested and fire-rated. Filter by material family, or open a product for full specs.
Click any product for complete specs, indicative pricing, and where it belongs. Every panel is independently NRC-tested and fire-rated.
Precision-machined parallel grooves across a pre-laminated MDF face act as acoustic apertures: sound enters the slots, passes into the cavity and backing material behind the panel, and is absorbed before it can return to the room.
Best for: corporate offices, hotel lobbies, auditoriums, conference rooms, restaurants, home theatres, museums, retail feature walls.
A precision-drilled perforation pattern uses the Helmholtz resonator principle: hole diameter, spacing, panel depth and backing depth together determine which frequency bands are absorbed most effectively - the preferred spec where an acoustic consultant has defined frequency targets.
Best for: auditoriums, multiplex cinemas, performing arts venues, broadcast/recording studios, conference halls, airport lounges, library reading rooms.
Natural wood fibres bonded with a mineral binder under high pressure create a rigid, dimensionally stable, naturally textured panel with excellent broadband absorption from low to high frequencies - where grooved or perforated panels excel mid-to-high, wood wool absorbs across the full audible spectrum.
Best for: school classrooms and assembly halls, gymnasiums, sports facilities, auditoriums, airports, industrial canteens, multipurpose halls, hotel ballrooms.
A high-density glass wool or rockwool core is wrapped in acoustically transparent fabric stretched over a rigid timber or aluminium frame - the fabric passes sound through freely, the core converts it to heat. This delivers the highest NRC of any wall-mounted format, with 100+ fabric colours and full-colour graphic printing for unlimited design flexibility.
Best for: corporate boardrooms, executive offices, conference rooms, recording studios, home theatres, broadcast studios, hotel conference suites, premium residential.
A grooved and perforated timber face is bonded to a polyester-fibre acoustic pad core with rubber-based adhesive, creating a single integrated panel that's more structurally robust than a standard slat panel - dowel-jointed with tapered V-joint edges.
Best for: auditoriums, convention centres, school assembly halls, multipurpose halls, lecture theatres, sports facilities.
Manufactured from post-consumer recycled PET fibres reclaimed from plastic bottles and compressed into rigid, self-supporting panels. Available in 30+ solid colours and precision CNC- or laser-cut into any shape, they function as acoustic treatment and decorative wall art at once - each standard 9 mm panel uses roughly 60–90 recycled 500 ml bottles per square metre.
Best for: co-working spaces, creative agencies, schools, children's learning environments, cafes, restaurants, retail, brand-expression walls.
Perforation holes of 0.5–0.8 mm diameter - roughly 140,000 per square metre - are virtually invisible at normal viewing distance, so the surface reads as a clean, uninterrupted flat panel while Helmholtz resonance at micro-scale, aided by the cavity behind it, does the acoustic work.
Best for: museums, art galleries, premium residential interiors, luxury hotel corridors, executive office suites.
A metal or aluminium frame surrounds a perforated metal skin - typically 22-gauge perforated galvanised steel - with an encapsulated acoustic fibreglass fill sealed in black heat-sealed polywrap. Sound enters through the perforations and is absorbed by the fill, delivering durability and washability that fabric or wood-based panels can't match.
Best for: gymnasiums, swimming pool enclosures, pump rooms, industrial fabrication, commercial kitchens, healthcare facilities, transit hubs.
| Panel type | Brand | NRC range | Fire rating | Best application |
|---|---|---|---|---|
| Grooved wooden slats | EchoStop™ | 0.75– 0.95 | IS/ASTM | Offices, hotels, auditoriums, restaurants |
| Perforated wooden panels | EchoStop™ Perforated | 0.75–0.95 | IS/ASTM | Auditoriums, cinemas, studios |
| Wood wool fibre | WFF Panel | 0.90 | ASTM Class A | Schools, gyms, auditoriums, airports |
| Fabric-wrapped | EchoStop™ | up to 0.95 | ASTM Class A | Boardrooms, studios, home theatres |
| Composite | Groovphonic™ | Up to 0.86 | FR treated | Auditoriums, school halls, high-traffic |
| CNC PET felt | EchoStop™ CNC PET | 0.65–0.95 | Class A | Co-working, schools, cafes, creative |
| Micro-perforated | EchoStop™ Micro | Up to 0.85 | IS/ASTM | Museums, premium offices, luxury hotels |
| Metal perforated | AcoMetal™ | 0.55–0.85 | Class A | Pools, gyms, kitchens, industrial |
Click through the five stages our own installation teams follow on every project, PAN-India.
Typical timeline: 2–3 days for a single conference room, 2–4 weeks for a full 500–1,000 sq m office floor.
Acoustic wall panels reduce reverberation, echo, and noise buildup within a room by absorbing sound energy. They do not prevent sound from passing between rooms - that requires soundproofing (STC-rated walls, partitions, and doors). Most spaces need both: acoustic treatment inside and isolation at the boundary. See our soundproof partition range for STC-rated wall systems.
For open-plan offices, NRC ≥ 0.75 for wall panels is the minimum meaningful specification. For conference rooms and boardrooms, NRC ≥ 0.85 is recommended on primary reflection surfaces (rear wall, side walls). Our acoustic consultants calculate the precise NRC and coverage area for your room volume and RT60 target.
Yes. Grooved wooden slats, perforated panels, fabric-wrapped panels, and WFF wood wool tiles are all available in ceiling configurations - direct-fix to substrate or suspended in grid systems. For exposed ceilings in open-plan spaces, acoustic hanging baffles and acoustic ceiling clouds are the preferred treatment. Combining wall and ceiling treatment always outperforms treating either surface alone.
Yes. All commercial panels in the range carry appropriate fire safety ratings: ASTM D-876 Class A for WFF and fabric-wrapped panels; IS/ASTM fire classification for grooved and perforated wooden panels (chemically fire-retardant treated); and inherently non-combustible AcoMetal™ metal panels. Fire certification documents are provided with every project specification.
Yes. The panels contribute to multiple LEED v4.1 and GRIHA credit categories: Indoor Environmental Quality (acoustic performance), Materials and Resources (certified 35% recycled content), and Low-Emitting Materials (VOC-free construction). Full documentation - NRC test certificates, recycled content certificates, VOC-free declarations, and fire rating certificates - is provided for green building credit submissions.
A single conference room (30–50 sq m of panel area) typically takes 2–3 days. A full open-plan office floor (500–1,000 sq m) takes 2–4 weeks depending on access, ceiling height, and layout complexity. Our installation teams work in sections to minimise disruption to operational spaces.
Yes. Fabric-wrapped panels take full-colour graphic and photographic printing on the fabric face. CNC PET felt panels come in 30+ colours with unlimited CNC-cut shapes, including brand-logo cut-outs. EchoStop™ grooved slat panels are available in 50+ pre-laminated finishes. Our design team works directly with architects and interior designers to match the specification to the project's visual identity.
Every project begins with a conversation. Tell us your space, your noise problem, and your acoustic target.
No jargon. No obligation. No guessing.