Term
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Definition
| Frequency Dependent Time Delay |
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Term
| What are the basic test signals used for sound system measurment not just for sim |
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Definition
Sine wave
White noise
Broadband pulse
Pink Noise
Shaped Noise |
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Term
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Definition
| Equal energy per frequency |
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Term
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Definition
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Term
| What are the two most commonly used weigting curves for spl meters |
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Definition
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Term
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Definition
| to correct for time alignment issues |
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Term
| Name two side effects that may be seen by reducing the low frequency amp gain |
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Definition
| Crossover point will shift and possible phase misalignment |
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Term
| Name ways to model a standard room shape instead of placing vertex or extruding |
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Definition
| Insert 3d shape or insert prototype |
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Term
| What does the f6 key do in ease |
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Definition
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Term
| Why do we model most rooms in the negative y axis |
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Definition
| it is the way that the speakers are facing when inserted |
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Term
| What is the command for cutting one face into two faces |
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Definition
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Term
| Which screen computes and displays the amplitude response of the measured system in the time domain |
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Definition
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Term
| Which screen displays the differency between the reference and measurement channels in the frequency domain? |
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Definition
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Term
| The sim 2.0 lab software is used primarily for what two applications |
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Definition
| stand alone measurement and reasearch |
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Term
| In the data status pane note will only sow how many charecters from the notepad |
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Definition
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Term
| Data rejected in the overall status panel means |
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Definition
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Term
| Data rejected in the overall status panel means |
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Definition
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Term
| What are the two windows in spectrum mode and what two dimensions do they display |
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Definition
| Reference and measurement amplitude vs frequency |
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Term
| In delay finder what is the hot key for the auto set delay |
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Definition
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Term
| In delay finder what does the lower screen display compared to the upper screen |
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Definition
| 10 times magnification of the relative amplitude vs time |
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Term
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Definition
Check it out from top to bottom
Coherence
Freq Response
Phase |
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Term
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Definition
| Scource Independent Measurment |
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Term
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Definition
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Term
| Under the setup menu in refernce channel there is a choice of two set upse which are? |
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Definition
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Term
| What advantages does a paraetric eq have compared to a graphic eq |
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Definition
Ajustable bandwith
Ajustable center frequency |
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Term
| What are the two independent factors that determine the magnitude and frequency response of comb filtering |
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Definition
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Term
| give two different examples of typical causes of comb filtering |
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Definition
reflections speaker interactions
Di and mic interations two mics at two diff distances |
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Term
| Why is it called comb filtering |
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Definition
| Viewing on a linear scale looks like the bristles of a comb |
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Term
| Sim 2.3 stereo software is used primarily for what two applications |
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Definition
| recording studios and stereo sound systems |
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Term
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Definition
Different colors / Types of trace
Red Signal to noise coherence
Green Inverse
Blue Result
White Room + Speaker
Orange EQ |
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Term
| Name 2 funcitons that are disabled when you enter show mode |
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Definition
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Term
| What two menu changes could you make to help prevent blanking |
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Definition
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Term
| What are the two parameters required for a primary mic position |
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Definition
| +/- 10 degrees on axis and center of coverage |
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Term
| Screen from top to bottom in sim |
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Definition
Signal to noise coherenece
Result of frequency response
Signal to noise of EQ
Signalto noise of room plus speaker
Inverse EQ
Room + Speaker Result |
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Term
| Name the two key factors affecting speaker interaction |
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
__
]
--
]
-- skinnyer than parallel |
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Term
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Definition
---
\
--- spit and stacked
/
-- |
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Term
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Definition
---
\
---
---spit and stacked but the split is wider
/
-- |
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Term
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Definition
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Term
| Reflection acts as a split point source array |
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Definition
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Term
| Reflection acts as a split parallel array |
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Definition
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Term
| reflection acts as a sidefill monitor array |
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Definition
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Term
| reflection acts as a point destination array |
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Definition
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Term
| which reflection of the four is the most favorable one |
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Definition
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Term
| equal level contour lines |
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Definition
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Term
| what is the hot key to toggle between live and memore traces |
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Definition
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Term
| Under the setup menu in reference channel there is a choice of two set ups which are |
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Definition
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Term
| name the type of curtain that is used in the drawing |
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Definition
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Term
| Name the person that created the smaart software |
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Definition
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Term
| What external hardware does smaart need for acoustic analasys of a speaker cabinet not for correction purposes |
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Definition
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Term
| What are the reference registers |
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Definition
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Term
| what is fixed point per octave |
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Definition
| 1/24th ocatve resoloution |
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Term
| what is fixed point per octave |
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Definition
| 1/24th ocatve resoloution |
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Term
| ________ is a topographical view of a waveform similar to the watefall display it is a 3d plot with freq on the y axis time on the x axis and amplitude represented by color |
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Definition
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Term
| What are the different generator settings that smaart has available internally in the software |
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Definition
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Term
| what brand of mic do we use with smaart for acoustic measurement |
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Definition
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Term
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Definition
| the time it takes a signal to decay 60 db after it has stopped |
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Term
| who was considered the fater of architectural acoustics and created the rt 60 caluculation |
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Definition
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Term
| what is the formula to calculate the colume of a room |
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Definition
| volume = length x with x height |
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Term
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Definition
| average absorbtion coefficient |
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Term
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Definition
| surface coefficent per one side |
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Term
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Definition
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Term
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Definition
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Term
| the speech carrier wave produced by the vocal cords for male talkers is aroun |
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Definition
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Term
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Definition
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Term
| know how to plot ncb ratiings |
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Definition
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Term
| know how to plot ncb ratiings |
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Definition
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Term
| What does normal in presence of noise mean |
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Definition
| we involuntarily raise our voices because of the noise level |
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Term
| which two frequencies are used for calculating rasti |
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Definition
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Term
| what does RASTI stand for |
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Definition
| Rapid articulation speech transmission index |
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Term
| What does %ALcons stand for |
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Definition
| percentage of articulation loss consonants |
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Term
| in ease for c 50 what does the c stand for |
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Definition
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Term
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Definition
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Term
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Definition
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Term
Stands for clarity
C7 D/R ratio
C50 Speech Intelligibility
C80 Music Intelligibility
Ct Your Choice |
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Definition
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Term
| one of the modules in ease demonstrates sound transmisiion and reflections being scattered in a room showing the loss of spl orders of reflections and propagation time of signals that module is named |
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Definition
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Term
| 1. Who developed the theory of time delay spectrometry? |
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Definition
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Term
| 2. Which company first commercially distributed TEF to the Industry? |
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Definition
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Term
| 3. Which Company Currently Owns the TEF Patent and Distribution? |
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Definition
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Term
| 4. What kind of connectors does TEF have for line input and Mic input? |
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Definition
| Line- BNC’s and Mic- 2 XLR’s |
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Term
| What kind of cable connections will TEF do to the host computer? |
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Definition
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Term
| 6. What does TEF Stand for? |
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Definition
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Term
| 7. What dimensions are in an ETC curve? |
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Definition
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Term
| 8. THE TEF system gathers its data in which domain? |
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Definition
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Term
| 9. It Takes ( ) To measure time and it takes( )to measure frequency? |
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Definition
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Term
| 10. What voltage should you not exceed when doing electrical measurements? |
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Definition
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Term
| 1. What is the formula to calculate the time window? |
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Definition
| The Bandwith divided by sweeprate |
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Term
| 2. How do you calculate the distance sound travels? |
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Definition
D= t x c
Distance is d
Time is T
And C is Sound |
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Term
| 3. How do you calculate the amount of time sound travels when you know the distance? |
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Definition
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Term
| 4. What is the time/distance window? |
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Definition
| The bubble around the microphone and speaker that is created by your choice of parameter |
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Term
| 5. It may be much more convenient to set a ( ) and ( ) And let the computer set the sweep rate and bandwidth for us. |
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Definition
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Term
| 6. How do you calculate the total distance of a reflection from a speaker to floor t mic? |
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Definition
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Term
| 7. What kind of calibrator do we use with TEF? |
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Definition
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Term
| 8. Why does TEF use 20uPascals for calibrating the unit? |
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Definition
| It is the threshold of hearing |
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Term
| 9. What kind of mic do we use with the TEF? |
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Definition
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Term
| 10. How does the Schroeder reverse integration curve calculate its data? |
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Definition
| From the back o the screen back to the direct signal. |
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Term
| 2. Acoustic Distortion Affects Three Psychoacoustics Perceptions , Which are? |
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Definition
| Imaging, Spatial Impression , Frequency Response |
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Term
| 3. Which Two harmonics seem to do the most damage to the THD? |
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Definition
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Term
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Definition
| Total Harmonic Distortion plus Noise |
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Term
| 5. How does Harmonic Tracking work? |
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Definition
| Like a TDS measurement but instead of tracking the fundamental it tracks the harmonic chosen. |
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Term
| 6. In A 3D Waterfall Display You Have to set The _start_ and _stop_ time and the amount of _steps___ to include. |
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Definition
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Term
| 7. Polar measurements May Be Transferred for Further Use to which software? |
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Definition
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Term
| what acoustical halp can floating an absorbtion panel do instead of mounting it |
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Definition
| absorbs more lows not just mids and highs |
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Term
| Most home theaters should have an rt 60 of ? seconds from 300 hz to 2 k |
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Definition
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Term
| the center speaker should not be more than ? feet from the height of the L/R |
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Definition
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Term
| What two types of speakers discussed are used for rear surround sound |
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Definition
| dipole and direct radiating |
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Term
| Rear surround speakers should be at a height of |
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Definition
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Term
| What is a good way to determine the subwoofer placement to reduce room modes |
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Definition
| move the sub till you set the smoothest low frequency caused not the loudest that will be its location |
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Term
| what should be the range for the loudest sounds of a soundtrack |
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Definition
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Term
| what should be the range for the quietest background effects of a soundtrack |
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Definition
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Term
| What three companies made the 5.1 audio toolkit dvd |
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Definition
|
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Term
| what help is a multiplexer when doing 5.1 systems |
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Definition
| it allows mulitple mics to achieve spatial averaging. |
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