Room reflections shape how well speech communicates across a space.

Evidence

A major part of communication by sound and voice takes place in spaces constrained by walls or surfaces, such as living rooms, auditoria, offices, concert halls, etc. The surfaces reflect impinging sound waves, and in a fraction of a second there are thousands of reflections which result in reverberation that gradually decays. Reflections and reverberation make sound and voice louder in the more distant parts of the room. They may also render the sound more ‘colourful’ and pleasant if the room has proper acoustics but, on the other hand, may make it difficult and annoying to communicate if the acoustic properties are not well matched to the form of communication. Background noise is another common reason for problems in communication. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 268

Categorization

• XREF: Connects to the reader’s running interest in how room acoustics aid or hinder intelligibility, extending soundscape and silence themes.