INTRODUCTION TO SOUND

sound is also known as reverb. Reverb is used to describe the sound in the room instead of using the word eco-y. when you describe the sound in the room you would say reverberant or you can also say its dry/dead. the overall name to call it is acoustic. 

This large room will a have a big reverb sound area as the sound will travel and the room will be very reverberant. There will be a lot of echo in a larger room.

This is a small room so the sound will not travel as much as it would in a big room so this is better to record sound as there is less echo and will be able to hear the sound clearer.