Audio questions/Answers

1. What range of frequencies are detectable to the human ear? — 20Hz is the lowest-pitched (bassiest) sound we can hear, 20kHz is the highest pitch we can hear.
2. Define Audio. Means "of sound" or "of the reproduction of sound".
3. Audio production involves what four elements of audio? natural sound, music, narration and sound effects.
4. List 10 careers in audio and list a local company for six of the career fields. Lakehouse studios,
Blue Moon Recording Studio
Brennan Music Studio
Columbia Street Recording Studio
Columbus Sound Recording Studio
dBMusic Production
Earthwork Recording
Empty Mind Studio
ePStudios
Fishtank Audio
5. List three careers that need to have an understanding of audio production conceptsSr Web Designer & Multimedia Manager, Network Engineer, CEAVCO Audio Visual, ETech Hi
6. A person rings a bell and another person hears the sound. Draw a diagram (in your composition book) of how this sound is created, transmitted, and received by a human
7. What is a waveform. Means the shape and form of a signal such as a wave moving in a solid, liquid or gaseous medium.
8. Is sound two dimensional or three dimensional? 2D
9. How do variations in sound pressure correlate to a waveform diagram? There are wave compared to a beam of audio dots
10. Illustrate (in your composition book) the difference between wavelength, amplitude, and frequency.
11. Diagram (in your composition book) in phase, 180deg out of phase, and different wave and how they interact.
12. Define transducer. A device, usually electrical, electronic, electro-mechanical, electromagnetic, photonic, or photovoltaic, that converts one type of energy or physical attribute to another for various purposes including measurement or information transfer
13. Define amplifier. Any device that changes, usually increases, the amplitude of a signal.
14. Define signal processor. Is a device that modifies an audio signal, either electric or digital.
15. Diagram (in your composition book) the 3 part model as described in the article.