Réducteur de bruit.
ETYM Late Lat. antiphona, from Greek. Related to Anthem.
A verse or song to be chanted or sung in response; SYN. antiphony.
Anthem sung as a response during church service.
A response said or sung as part of the liturgy; a psalm etc. sung alternately by two choirs.
Choral music in Greek or Roman liturgy involving the exchange of responses between solo voice and choir, or between choral groups, hence antiphony.