Answer: echochamber

AnswerCrossword Clue
ECHOCHAMBER

Recording studio feature

ECHOCHAMBER

Room for creating hollow sound effects

ECHOCHAMBER

Administrative group that oversees acoustics?

ECHOCHAMBER
Room with resounding walls
ECHOCHAMBER
Place for creating sound effects
ECHOCHAMBERPlace for hollow sound effects
ECHOCHAMBERUnideal environment for discussing policy