audio questions

1. What range of frequencies are detectable to the human ear?approximately 20Hz to 20kHz
2. Define Audio.
Sound or the reproduction of sound.

3. Audio production involves what four elements of audio?
involves the production, recording, manipulation and reproduction of sound waves4. List 10 careers in audio and list a local company for six of the career fields
· Studio Sound Engineer
· Live Sound Engineer
· Musician
· Music Producer
· DJ
· Radio technician
· Film/Television Sound Recordist
· Field Sound Engineer
· Audio Editor
· Post-Production Audio Creator

5. List three careers that need to have an understanding of audio production concepts
Engineering
Effects artist
Sound designer

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?
Sound waves can also be shown in a standard x vs y graph, The resulting curves are known as the "waveform"8. Is sound two dimensional or three dimensional?
3d

9. How do variations in sound pressure correlate to a waveform diagram?
High pressure- makes the air molecules be packed together densly
Low pressure- molecules of air spread more thinly

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 which converts energy from one form into another. The two types of transducers we will deal with are microphones (which convert acoustical energy into electrical energy) and speakers (which convert electrical energy into acoustical energy).


13. Define amplifier
A device which takes a signal and increases it's power

14. Define signal processor
devices and software which allow the manipulation of the signal in various ways. The most common processors are tonal adjusters such as bass and treble controls.

15. Diagram (in your composition book) the 3 part model as described in the article.