23 September 2009

♥questions♥

1. What ranges of frequencies are detectable to the human ear?
20Hz to 20kHz

2. Define Audio.
"of sound" or "of the reproduction of sound

3. Audio production involves what four elements of audio?
Sound Waves, Wave properties, Wave Interaction, Sound Systems

4. 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.DJ, Audio Editor, Live Sound Engineer.

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?
Curves that represent the constant or non-constant stream of audio vibrations.

8. Is sound two dimensional or three dimensional?
Three Dimensional

9. How do variations in sound pressure correlate to a waveform diagram?
The sound waves slow down and echo out if the pressure is higher; the pitch will be higher if the pressure is lighter

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.

13. Define amplifier.
A device which takes a signal and increases its power

14. Define signal processordevices and software which allow the manipulation of the signal in various ways.

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