Sound Around the Listener

In the picture

1. 1The person at the centre: the listening position
2. 2A loudspeaker on the ring: one place where sound starts
3. 3A second loudspeaker on the ring: another place where sound starts
4. 4The glowing arc between loudspeakers: sound moving from one place to the next

Examples

• A surround-sound film scene where a car passes from left to right.
• A concert with loudspeakers around the audience so a melody circles the room.

Quiz: Sound Around the Listener (Age 16)

1. 1

   What does spatialisation mean?

   • Keeping all sound at the same distance from the listener.
   • Placing performers or loudspeakers around a listener so direction and movement become part of the music.
   • Making every sound come from one fixed point in front of the listener.
2. 2

   What can be composed by changing which loudspeakers are active?

   • The movement of sound.
   • The tempo of the music.
   • The key of the music.
3. 3

   In a ring of loudspeakers, how can sound travel?

   • From one side to another instead of from one fixed point.
   • Only from the loudspeaker directly behind the listener.
   • Only from the exact centre of the ring.

The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.