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18 Cards in this Set
- Front
- Back
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What advantages does a parametric EQ have compared to a Graphic EQ?
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Adjustable Center Frequency
Adjustable Bnadwidth |
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What is complimentary equalization?
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Creating the inverse of the problem.
Match center frequency and bandwidth and inverse the gain. |
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What is error in center frequency?
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When the correction and the problem do not match in center frequency.
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What is error in bandwidth?
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When the correction and the problem do not match in bandwidth.
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What is comb filtering?
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Two signals arriving at different times in equal amplitude.
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What are the 2 independent factors that determine the magnitude and frequency responce of comb filtering?
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Time and Level Offset
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How do you calculate for comb filtering?
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f=1
-- time (sec) Then divide by 2 to find first null. |
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Why is it called comb filtering?
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On a linear scale it looks like the bristles of a comb.
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What actions can you take to reduce comb filtering?
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Time Alignment
Offset Levels High Pass Filters |
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Why are Graphic EQs blamed for poor results when trying to correct comb filtering?
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It's a time problem!
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4 Causes of comb filtering?
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Reflections
2 Mics (Different Distances summed together) DI & Mic Interaction Speaker Interaction |
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What is the Procedure Menu - Pretest used for?
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Check continuity of the system - such as the EQ, speaker, and the mic.
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What is Procedure menu - Show used for?
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Generator and Branch Muting are disabled. You cannot go back into the menus except for Post Process and Quit.
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What is Procedure Menu -Post Process used for?
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Allows you to look at the information but you cannot change anything.
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What is the inverted EQ?
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An upsidedown EQ - a cut looks like a boost (Green Line)
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How does the feedback finder work?
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A peak hold RTA.
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How many traces are you able to see at one time using the SIM II 2.3S?
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6
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How many memory groups are in each branch?
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8
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