| What are the main reasons for sound system measurement? |
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| maintenance, legal and artistic |
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| What are the 5 basic test signals used for sound system measurement? |
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| white noise, pink noise, shaped noise, broadband pulse, sine wave |
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| equal energy per frequency |
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| what are the 2 most common wieghting curves used for SPL meters? |
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| What dimension is a real time analyzer missing? |
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| what is the fourier transform? |
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| an equation that takes amplitude vs. time and converts it to amplitude vs. frequency |
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| What measurement system uses FFT’s? |
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| what is an electronic crossover point? |
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| where the processor is crossing over |
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| what is an acoustic crossover point? |
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| when drivers are driven to equal amplitude |
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| what is amplitude correction? |
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| boost in frequencies to compliment system
(ex. boost in 16k to cut high end) |
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| what is phase correction? |
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| how do amplifier spec sheets denote voltage gain? |
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| what is power amplifier voltage gain? |
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| ratio of input to output voltage |
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| what mathematical formulas do you use to calculate amplifier voltage gain? |
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| what mathematical formula do you use to calculate maximum output voltage? |
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| how do you match amplifier voltage gains? |
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| potentiometers, dip switches and front panel attenuators (aka volume knobs) |
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| what are some of the side effects or reducing the LF amplifier gain? |
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| decreases the LF buildup as desired, alters directional response at crossover, increases mid frequency distortion |
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| what applications are the SIM II V2.0 lab used for? |
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| stand alone measurement and research |
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| what are the status panels? |
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| the info windows at the bottom of the screen |
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| what are the 2 windows in spectrum mode? |
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1)reference and measurement
2) amplitude and frequency |
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| what are the 2 windows in delay finder mode? |
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| relative amplitude versus time |
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| what are the 3 traces in the fequency response screen? |
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| coherance, frequency response and phase |
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| what 2 choices under the setup menu – reference channel are you provided with? |
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| what 2 choices under the setup menu – measurement channel are you provided with? |
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| what is the hot key to turn the generator ON? |
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| Which frequency is typically used for measuring harmonic distortion? |
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| what is the hot key for the auto set delay in the delay finder mode? |
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| What other types of room input methods are there other than vertex by vertex? |
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| extrude, insert shape 3D and prototype |
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| Name the 5 types of 3D shapes you can insert? |
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| cubiod, pyramid, cylander, cone and cupola |
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| Interior surfaces are what color? |
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| what is the hot key used to save and apply? |
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| Why are most rooms modeled in the negative Y axis? |
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| that is the direction the speakers face |
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| what is the command for cutting a face into two faces? |
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| what is the hotkey to delete unattached vertices? |
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| when adding floor to ceiling columns in a room you must? |
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| what are some of the prototypes available? |
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| amphitheatre, church, gothic dome, stadium, station, theatre, tricube |
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