Why use acoustic protection: increase noise, reduce echoes and improve sound, amplify all sound, or increase speed?
صوتی انتظام کیوں: شور بڑھانا، بازگشت کم اور معیار بہتر، ہر آواز بڑھانا یا رفتار بڑھانا؟
Solution & explanation
Reduce unwanted reflections and noise while retaining useful sound distribution.
Independent study answer. Original textbook ↗ · English-medium printed page 60.