A home office furnished with only a desk and monitor reflects almost all sound energy that reaches its walls and floor. The result is an elevated reverberation time — the duration it takes for a sound to decay by 60 dB after its source stops. For speech to remain clear, reverberation time in a room should generally stay below 0.5 seconds. Many untreated spare rooms in residential buildings exceed this by a wide margin.
Soft furnishings work by converting sound energy into a small amount of heat as sound waves pass through porous or fibrous materials. No single item eliminates echo on its own, but combining several types of soft material across different surfaces produces a measurable cumulative effect.
Area Rugs and Floor Coverings
The floor is the largest flat reflective surface in most rooms. A bare wooden or laminate floor reflects sound strongly, particularly in the 500 Hz to 4 kHz range — the frequency band that carries most of the intelligibility cues in human speech. An area rug with a dense pile and a felt or rubber underlay addresses this directly.
What to look for in a rug
Thickness and density matter more than area. A 10 mm pile with a felt underlay outperforms a thin flat-woven rug of twice the size. For a typical home office, a rug that covers the area under and around the desk — roughly 2 m × 1.5 m — provides a meaningful reduction in floor reflection. Natural wool pile has slightly higher absorption coefficients than synthetic fibres at mid frequencies, though the difference in practice is modest.
Practical note
Placing a rug directly on a hard floor without an underlay reduces its effectiveness by roughly half. The air gap created by a thick underlay allows the rug to flex and absorb more energy per wave cycle.
Curtains and Window Treatments
Windows create two acoustic problems: they are highly reflective hard surfaces, and they are often positioned directly opposite a wall, creating a strong parallel reflection pair. Heavy curtains hung close to the wall (not just the window frame) cover more surface area and absorb more effectively.
Material and hang depth
Velvet, heavy linen, and layered blackout fabrics provide the most absorption. A curtain gathered to 200–250% of window width creates more folds and therefore more air-trapping depth than a flat panel. Floor-length curtains that pool slightly at the base add extra mass at the lower edge, where gaps between curtain and floor would otherwise allow reflected sound to escape.
In Poland, it is common to find roller blinds as the only window treatment in home offices converted from a spare room or balcony enclosure. These have minimal acoustic benefit. A secondary layer of heavy curtains installed on a separate track, independent of the blind, addresses the reflection problem without removing the functionality of the blind for light control.
Upholstered Furniture
An upholstered office chair or an armchair in the corner of the room absorbs sound at mid and high frequencies. The effect is distributed across the surface of the fabric and the internal foam or spring structure. A chair with a high backrest and side wings — common in executive-style chairs — covers more surface area than a low-back task chair, and places soft material closer to ear height, which is where reflections affect speech clarity most.
Sofas and side seating
If the home office doubles as a meeting room for video calls with multiple participants, a small two-seat sofa along one wall adds significant absorption without requiring acoustic panels. The combination of upholstered surfaces and the air trapped within the furniture structure treats a broad frequency range.
Filled Bookshelves
A bookshelf densely stocked with books of varying sizes acts as a broadband diffuser and partial absorber. The irregular surface created by books of different depths and heights scatters sound energy in multiple directions, reducing the strength of direct reflections back toward the listening position. This is distinct from absorption — diffusion does not remove energy, but it breaks up coherent reflections that cause echo and flutter.
Placement considerations
A bookshelf placed on the wall behind the camera position — visible in video calls — treats the primary reflection wall while also presenting a professional visual background. A shelf on the wall behind the monitor is less visible on calls but treats the wall that produces first reflections from the speaker's voice, which are the reflections most likely to affect recording and call quality.
Soft Items That Are Often Overlooked
Several common household items provide acoustic benefit without being recognisable as acoustic treatment:
- Throw pillows and cushions — when stacked in a corner or on a chair, they absorb upper-frequency energy at one of the room's most problematic acoustic zones.
- Thick blankets or throws — hung on a wall or folded on a sofa, they add porous mass without requiring any installation.
- Pot plants with large leaves — while their acoustic effect is limited, several large-leafed plants add surface irregularity and a small amount of high-frequency scattering.
- Wall-mounted textile art — fabric panels, tapestries, or stretched canvas prints mounted directly on the wall add absorption at the primary reflection surfaces without appearing to be acoustic treatment.
How to Prioritise Additions
If starting from an untreated room, the order of impact is typically: floor covering first, then window treatment, then upholstered seating, then bookshelves or wall textiles. Each step reduces the average reverberation time, and the improvement from each is most noticeable when the previous surface has not yet been treated.
The first rug in a bare room produces a more noticeable change than the third panel in a room that already has two panels.
Once soft furnishings are in place, any remaining echo is likely concentrated in the upper-frequency range and in specific reflection paths. At that point, targeted acoustic panels become more effective than adding more soft furnishings.
Information on this page is for general guidance only. Acoustic conditions vary between rooms. Last updated: May 2026.