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Acoustics

The room is half of the sound. We measure it, then treat what matters.

We measure how your room shapes sound, treat what matters with panels and traps that suit its design, then finish with digital correction. Speech becomes clearer and music gains detail.

Acoustics
a bare 76 m³ room rings for this long
1.08 s
the same room with 20 m² of panels
0.45 s
the target for music and film
0.3 to 0.5 s
the fall that reverberation time measures
60 dB
A person at a mixing desk in a room lined with acoustic panels

What is room acoustics?

A room is the last part of every sound system. Hard floors, glass and plaster bounce sound around, so speech blurs and music loses its detail, however good the equipment is.

  • Clearer speech in every seat
  • Tighter, more even bass
  • Panels that suit the room’s design
  • Measured before and after
Close view of a wall of foam acoustic panels

Acoustics in brief

Acoustic treatment controls those reflections and calms the bass. We measure the room first, then treat what matters, with panels that fit the design. The result is a room where you hear the music or the film, not the room.

How it works

Hear the music, not the room

In a bare room, sound rings for about a second and blurs whatever comes next. Panels take those late reflections away.

SeatTarget0 s0.4 s0.8 s1.2 s0 dB−60 dB
Reverberation
1.08 s
Target
0.3 to 0.5 s
Panels
0 m²

Worked out from published specifications and standard sums for sound. A guide to how a room behaves, not a measurement of yours. Sound is shown as one note, slowed about 150 times, so you can see it move.

  1. 01The thick line is the sound you want. The thin ones reach you late, off the walls.
  2. 02Reverberation time is how long a sound takes to fade by 60 dB.
  3. 03Add panels, and the curve falls into the target for music and film.

What a room does to sound

  1. 01

    First reflections

    Sound off the nearest walls reaches you just after the direct sound and smears it. Panels at those points clear it up.

  2. 02

    Bass that builds up

    Long waves pile up in corners and at certain seats. Traps and careful subwoofer placement even them out.

  3. 03

    How long a room rings

    Reverberation sets how clear speech and music are. Hard rooms ring for a second; a treated room settles in under half that.

  4. 04

    Correction after treatment

    Digital correction such as Trinnov then measures the room at the seat and refines what panels can't reach.

Plan your room

Move the sliders to your own sizes for a first estimate.

Volume
76 m³
Bare room rings for
1.08 s
Panels for 0.4 s
24 m²
Share of surfaces
21%

A first estimate from standard formulas. We confirm it once we have seen the room.

Ask us to check this plan

What goes in it

PartWhat it doesWhat to look forSee products
Absorption panelsTake out reflections from the walls and ceiling.Thick enough to work at speech and music frequencies, in a finish that suits the room.
Bass trapsCalm the boom that builds in corners.Depth: bass needs much more than a thin panel.
DiffusersScatter sound, so a room stays lively without echoes.Placement behind the seats in larger rooms.
IsolationKeeps sound in and noise out. This is separate from treatment.Mass and airtightness. Panels alone won't stop sound leaving a room.
Digital room correctionMeasures the room at the seat and corrects what's left.Processing like the Trinnov Altitude and Weiss DSP models shown here.See products

Room guide

Worked out by Sabine's formula, for hard walls, ceiling and floor, with panels that take in most of the sound reaching them.

RoomVolumeBare roomPanels for 0.4 s
4 × 3.5 × 2.8 m39 m³0.90 s11 m²
6 × 4.5 × 2.8 m76 m³1.08 s24 m²
8 × 6 × 3 m144 m³1.29 s50 m²

How we do it

  1. 01

    Measure

    We measure reflections and bass build-up at the seats.

  2. 02

    Propose

    Panels and traps are chosen and placed to fit the room's design.

  3. 03

    Install

    Treatment goes in, in fabrics and finishes that suit the room.

  4. 04

    Measure again

    We repeat the measurements, so you can see what changed.

Measure first

We measure reflections and bass build-up in your room, then propose panels and traps that fit the design, from a majlis to a cinema.

Questions

5
Will treatment change how the room looks?

It does not have to: fabric finishes and hidden traps blend into the interior.

Isn't digital room correction enough?

It helps a great deal, mainly with bass. It can't remove echoes in time, so it works best after the room is treated.

What's the difference between isolation and treatment?

Isolation keeps sound in or out. Treatment controls how sound behaves inside the room. They need different materials.

Can a majlis with hard floors be fixed?

Yes. Rugs, fabric walls and panels hidden behind finishes can bring speech clarity back without changing the room's character.

How many panels does a room need?

More than most people expect: about a fifth of the surfaces in a hard room. The room guide shows typical areas.

Three ways to build it

Real products from our catalogue, as a starting point. Every system is then adjusted to the room.

  1. Measure and correct

    Room correction for a stereo system, before any building work.

  2. Cinema correction

    A processor that measures every speaker at every seat.

  3. Reference room

    Full correction for the largest rooms, alongside treatment.

Products for this room