äänikopasta

Äänikopasta is the elative singular form of the Finnish noun äänikoppa, a compound of ääni (sound) and koppa (box, cabinet). The base term äänikoppa refers to a sound booth, sound cabinet, or acoustically treated enclosure used in audio recording, broadcasting, or live sound settings. An äänikoppa is typically a small room or enclosed space designed to isolate sound, reduce external noise, and control reflections so that microphones can capture a clean signal. In studios and on stages, such booths may be fixed installations or portable isolation boxes.

As a grammatical form, äänikopasta is the elative case and is used to express origin or movement from the booth, as in descriptions or instructions involving the booth. The nominative is äänikoppa, and other cases follow standard Finnish inflection rules.

In practice, the concept is common in professional audio contexts, including studio design, broadcast facilities, and theater production. Related terms include äänieristys (sound insulation), äänieristetty tila (sound-isolated space), and äänitekniikka (audio engineering). Depending on the context, äänikoppa may also refer to a dedicated vocal booth or a portable isolation box used to regulate the acoustic environment for a performer.