The clothes and presence of the people absorb the echoes sound waves.
Rm11 people the answer is not here by Andrew :p
No
Because echos are created by sound waves bouncing off of walls, and people and furniture block the walls and the space for the echo to bounce back. If you throw a handball at a wall it will bounce back, but if you throw a handball in a room with a bunch of people it will hit one of these aforementioned people and they will be very unhappy, as they have a right to be. SEEWHATIMSAYIN.
Reverberation
the temp. decreases because in the air condition room our body temp. is changed from the natural body temp. and high
Rm11 people the answer is not here by Andrew :p
Because there's no single person get it there all married and no no one is single
Room flutter is basically echo. Parallel surfaces of the room cause sound to bounce back and forth quickly causing the echo to quickly echo creating a flutter or slap back sound. This is usually NOT a desireable trait for a room especially if you're using the room for any kind of audio work (recording, mixing, rehearsing etc). I say usually because there are instances where you DO want a room to flutter, as when implementing an echo chamber. Remedies for this phenomina can be as simple as adding a carpet or soft furnature to full blown acoustic treatments (see auralex.com for more info on that)
No
Because echos are created by sound waves bouncing off of walls, and people and furniture block the walls and the space for the echo to bounce back. If you throw a handball at a wall it will bounce back, but if you throw a handball in a room with a bunch of people it will hit one of these aforementioned people and they will be very unhappy, as they have a right to be. SEEWHATIMSAYIN.
Reverberation
You can go into a stuffed small room and not hear an echo unlike moving into a new big house with no furniture! there would be a big echo!
Continuously repeating echoes in a room are known as reverberation.Where the echo is distinct, it is just an echo
Any wall in any enclosed room , hill or obstacle about 17 meters away or more will produce an echo.
the temp. decreases because in the air condition room our body temp. is changed from the natural body temp. and high
Dennis Marsh
In A Room Full Of People