Simple Explanation

The first few sound reflections that reach you after the direct sound, often bouncing off nearby surfaces.

Concise Technical Definition

The first reflected sound waves to arrive at a listener shortly after the direct sound, typically within 50 milliseconds, originating from nearby surfaces like walls, ceilings, or floors.

Layman-Friendly Analogy

Like the faint echo you hear right after clapping your hands in a room—it’s not the full reverb, just the first few bounces.

Industry Usage Summary

Important in room acoustics and speaker placement to manage clarity and spatial perception; often controlled with acoustic treatments.

Engineering Shortcut

Reflections reaching the ear within ~50 ms of the direct sound—major influence on perceived spatial image.

Full Technical Explanation

Early reflections are sound waves that reflect off surfaces (walls, floor, ceiling, or objects) and arrive at the listener's position shortly after the direct sound. They usually occur within the first 50 milliseconds and contribute to how we perceive the size and nature of the space. In small-to-medium rooms, managing early reflections through placement or acoustic treatment is critical for clarity and imaging in both recording and playback environments. Too strong or misaligned early reflections can blur localization and reduce intelligibility, while well-managed ones can enhance spaciousness without causing echoes.