Acoustic damping technique for shooting sets—reduces room reverberation and external noise cost-effectively. Essential pre-rolling audio for clean dialogue recording.
Anyone who has had to shoot in a warehouse or a shell building knows the problem: the room sounds like a cathedral, every word echoes, and sound becomes a challenge. This is where the Dymat process comes in — a proven method for acoustically preparing sets before the first scene is shot. It's about dampening room echo and external noise with minimal material effort, without sacrificing visual aesthetics.
The method uses specialized damping mats — typically self-adhesive polymer foam or bitumen materials, which are applied to walls, ceilings, or props. The name refers to the systematic preparation: the room is acoustically mapped, sound reflection points are identified, and those surfaces that generate the most reverberation are treated specifically. The crucial factor is placement — not full coverage damping (which would be expensive and visually conspicuous), but strategic acoustic surgery. The ceiling and rear wall areas are often sufficient; for dialogue scenes, one moves closer to the speakers. The set dressing department works closely with the sound department here to choose materials that can later be concealed — behind curtains, under carpets, or in already planned decorative elements.
On set, the Dymat process brings concrete advantages: the sound engineer requires less compensatory miking, post-production has to do less reverb reduction — and thus production risks are significantly reduced. I've seen indie productions underestimate this method and then fail in post-production because the room sound can no longer be salvaged. For high-budget productions, this has long been standard: the first week of a set dressing phase includes acoustic tests and Dymat preparation. This saves time during sound recording and prevents expensive reshoots due to poor audio quality.
A practical tip: the process works particularly effectively as a hybrid approach — combine Dymat damping with moderate furnishing and textiles. An empty room with acoustic material alone sounds dead; a furnished room with targeted treatment sounds natural and still looks cinematic. The effort pays off when the first sync take is perfect and editing doesn't have to endlessly juggle room tones.