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Sketch Reflective Surfaces Without Treatment Claims

Observe materials before considering purchases.

Why this observation matters

Observe materials before considering purchases.

How to try it

Mark broad visible surfaces near the listening area, such as windows, bare floor, and hard tabletop. Describe them plainly. If a movable curtain or rug is already part of the room, you may compare two normal states without buying anything.

An ordinary-room example

A curtain is sometimes drawn across a large window. Comparing open and drawn states can produce a personal note about the room impression.

What the note cannot prove

This worksheet cannot estimate absorption or prove that a rug or curtain will solve a specific problem. Avoid fire, trip, or access hazards from makeshift treatment.

What to write down

Record the surface and the two states, plus the single impression you compared. Keep any conclusion local to that room and passage.

A useful repeat check

For each visible surface, mark its location rather than guessing a coefficient or frequency effect. A bare tabletop near the seat, a broad window to one side, and a hard floor are different observations. If a curtain already has two normal positions, compare them while leaving the speakers and chair alone. Note whether outdoor noise, daylight, or temperature also changed, because those may affect attention. Do not buy treatment based on this sketch. The practical outcome is a clearer description of the room and a small, reversible comparison to revisit.