Audio Systems Applications

Question 1

Music Reinforcement System

Answer 1

full bandwidth systems, capable of reproducing a wide frequency range with higher sound pressure levels

Question 2

Mix-Minus System

Answer 2

• large boardrooms, meeting rooms, or classrooms
• create a separate sound subsystem for each loudspeaker, or group of loudspeakers (called “loudspeaker zones”)
• The term “mix-minus” means that each subsystem mixes the microphone signals, minus the microphones closest to a group of loudspeakers

Question 3

Playback System

Answer 3

does not include microphones; it simply plays prerecorded material.

Question 4

Audioconferencing

Answer 4

• data may travel over ISDN, IP or POTS
• Part of the equipment included in audio conferencing will include either line or acoustic echo-cancellation technology. Larger systems may also include speech reinforcement and playback capabilities.

Question 5

Sound Masking Systems

Answer 5

Speech privacy system is a sound system that adds background noise to an environment to cover up human speech and prevent privacy issues.

Question 6

Pink Noise

Answer 6

• a signal that has equal amounts of noise in each octave

- Sounds Like Waves on a beach

Question 7

White Noise

Answer 7

• A random signal having equal intensity at different frequencies
• Hiss of a steam pipe