| Answer | Crossword Clue |
|---|---|
| SNORE | Embarrassing sound in a lecture hall |
| ambiophony | the reproduction of sound to create an illusion to a listener of being in a spacious room, such as a concert hall |
| ambiophonies | AMBIOPHONY, the reproduction of sound to create an illusion to a listener of being in a spacious room, such as a concert hall |
| ECHO | Sound in an empty hall |
| ECHO | Sound in an empty concert hall |
