Computer Music: Musc 216
Study Questions #6: Noise and Filters; Creating a Helicopter Patch

Before you answer these questions, you should have reviewed the required reading for this session (including LINKS listed in the Class Schedule), and any LECTURE NOTES. Once you submit your answers, your grade will be recorded in your Student Gradefile and you will not be able to retake the quiz.

Please complete this set of Study Questions before the end of the next class session. However, the absolute deadline for completing them is 10:00 p.m. Friday, February 27.


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1. A general definition of "bad" NOISE is:
 
2. A general definition of "good" NOISE is:
 
3. When some parameter of a sound is varied systematically over time, the result is called:
4. LFO is an abbreviation for:
 
5. Varying AMPLITUDE with an LFO produces:
 
6. Which filter is used in SYD for synthesizing the HELICOPTER sound?
 
7. When noise is sent to the filter, the amount of noise (loudness of the noise) is controlled by which parameter in the filter?
 
8. In the TUTORIAL for the basic HELICOPTER patch, which TYPE of filter is used?
 
9. In the Helicopter Tutorial, two ways of producing the OSCILLATING sound of the helicopter blades is to apply an LFO to either the:
 
10. Negative values from the MODULATING OSCILATOR sent to the filter band could potentially result in:
 
11. One way to compensate for negative values from any MODULATING operator is to:
 
12. In the basic Helicopter Patch, which 2 operators are responsible for the overall LOUDNESS of the sound:
 
13. If you are controlling the Amplifier Operator with an LFO, what type of connection should you use:
 
14. Which operator controls the overal LENGTH of the sound:
 
15. Are there any VALID connections that can be made to the Noise Generator Operator?
 


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