FILTERS AND EQUALIZERS

(click on the capital letter for your answer)

1. On a bandpass filter one can vary the _____________ .

A. gain
 B. centre frequency
 C. cut-off frequencies D. roll-off

2. On a graphic equalizer one can select the ______________ and control the __________ of each band.

First blank
 A. gain B. centre frequency C. cut-off frequencies D. roll-off
Second blank
 A. gain B. centre frequency C. cut-off frequencies D. roll-off

3. A graphic level equalizer can be described as a set of filters, each characterized and identified by its fixed ________ and ___________.

A. gain and centre frequency B. gain and bandwidth
 C. cut-off frequencies and bandwidth D. centre frequency and bandwidth

4. Filters affect the ____________ of a sound by the ____________ of certain frequency ranges.

First blank
 A. frequency response B. spectrum C. envelope D. gain
Second blank
 A. attenuation B. amplification C. compression D. emphasis

5. A high-pass filter attenuates frequencies ___________ the cut-off frequency.

A. below
 B. around
 C. above D. above and below

6. A high shelf filter boosts or attenuates frequencies ___________ the cut-off or turnover frequency.

A. below
 B. around
 C. above D. above and below

7. When the upper and lower cut-off frequencies are identical on a bandpass filter, no output results. T or F

8. The cut-off frequency of a filter is the frequency attenuated by  ________.

A. 0 dB
 B. +3 dB
 C. -3 dB
 D. -6 dB

9. Equalization that de-emphasizes the 10 kHz range may reduce hiss, but it will also dull the brightness of sibilants. T or F

10. Equalization that boosts frequencies around 3 kHz may be used to improve  _________.

A. fidelity
 B. quality
 C. presence
D. gain

11. The Q of a filter is the ratio of the ________ to the __________.

First blank
 A. gain
 B. bandwidth
 C. centre frequency
D. cut-off frequency
Second blank
 A. gain B. bandwidth C. centre frequency D. cut-off frequency

12. A high Q value represents:   A._______ a narrow bandwidth   or    B. ________ a broad bandwidth.

13. The ________ circuit on a mixer or DAW allows several signals to be sent to the same processor in varying amounts.

A. auxiliary
 B. series
 C. parallel
 D. group

14. The circuit referred to in question 13. allows a signal to be sent to a processor independently of the its mixing level in
(A. ____ pre / B. _____ post) mode.

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