Term
| WHAT ARE THE MAIN REASONS FOR SOUND SYSTEM MEASUREMENT? |
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Definition
•Maintenance
•Legal
•Artistic |
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Term
| WHAT ARE THE 5 BASIC TEST SIGNALS USED FOR SOUND SYSTEM MEASUREMENT? |
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Definition
•Pink Noise
•White Noise
•Sine Waves
•Shaped Noise
•Broadband Pulse |
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Term
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Definition
| •Equal energy per frequency |
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Term
| WHAT ARE THE 2 MOST COMMON WEIGHTING CURVES USED FOR SPL METERS? |
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Term
| WHICH DIMENSION IS A REAL TIME ANALYZER MISSING? |
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Definition
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Term
| WHAT IS THE FOURIER TRANSFORM? |
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Definition
| •A mathematical calculation – converts amplitude vs. time into amplitude vs. frequency |
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Term
| WHAT MEASUREMENT SYSTEMS IN SHOW PRO PRIMARILY USE FFT’S? |
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Definition
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Definition
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Term
| IN EASE WHAT OTHER TYPES OF ROOM INPUT METHODS ARE THERE OTHER THAN VERTEX BY VERTEX? |
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Definition
| •Extrude •Insert shape 3D •Insert - Load prototype |
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Term
| NAME THE FIVE TYPES OF 3D SHAPES YOU CAN INSERT? |
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Definition
•Cuboid
•Pyramid
•Cone
•Cylinder
•Cupola |
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Term
| INTERIOR SURFACES ARE WHAT COLOR? |
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Definition
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Term
| IN EASE WHAT IS THE HOT KEY TO SAVE AND APPLY? |
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Definition
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Term
| WHY ARE MOST ROOMS MODELED IN THE NEGATIVE Y AXIS? |
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Definition
| •That is the direction speakers are facing when inserted |
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Term
| WHAT IS THE COMMAND FOR CUTTING A FACE INTO TWO FACES? |
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Definition
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Term
| WHAT IS THE HOTKEY TO DELETE UNATTACHED VERTICES? |
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Definition
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Term
| WHEN ADDING FLOOR TO CEILING COLUMNS IN A ROOM YOU MUST? |
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Definition
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Term
| WHAT ARE SOME OF THE PROTOTYPES AVAILABLE IN EASE? |
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Definition
| •Amphitheater •Auditory •Basilica •Church •Coliseum •Gothic Dome •Multipurpose •Octagon •Opera •Redoubt •Shell •Sporting Hall •Stadium •Station •Theater •TriCube |
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Term
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Definition
| •A source or signal is either pushing positive or negative |
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Term
| DESCRIBE PHASE IN FOUR WORDS? |
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Definition
| •Frequency dependent time delay |
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Term
| NAME THREE WAYS TO REVERSE POLARITY? |
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Definition
•Swap pins 2&3 in cable
•Reversing the speaker wiring
•Polarity switch or setting (Console Processor Amp) |
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Term
| TWO SIGNALS OF EQUAL AMPLITUDE AT 0 DEGREES OFFSET WILL RESULT IN? |
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Definition
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Term
| TWO SIGNALS OF EQUAL AMPLITUDE AT 180 DEGREES OFFSET WILL RESULT IN? |
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Definition
| •Full Cancellation -100dB |
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Term
| TWO SIGNALS OF EQUAL AMPLITUDE AT 120 DEGREES OFFSET WILL RESULT IN? |
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Definition
| •No coupling or cancellation |
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Term
| READING PHASE TRACES; IF THE TRACE IS ANGLED TO THE LEFT IT IS? |
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Definition
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Term
| READING PHASE TRACES; IF THE TRACE IS ANGLED TO THE RIGHT IT IS? |
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Definition
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Term
| READING PHASE TRACES; IF THE TRACE IS ANGLED STRAIGHT UP AND DOWN IT IS? |
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Definition
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Term
| WHAT APPLICATIONS IN SIM II 2.0 IS LAB MODE USED FOR? |
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Definition
| •Standalone measurement and research |
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Term
| WHAT ARE THE STATUS PANELS IN SIM II? |
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Definition
| •Information windows at the bottom of the screen |
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Term
| WHAT DOES DATA REJECTED MEAN IN SIM II? |
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Definition
| •One of the ports has reached overload |
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Term
| IN SIM II WHAT ARE THE 2 WINDOWS IN SPECTRUM MODE CALLED? |
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Definition
| •Reference and Measurement |
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Term
| IN SIM II WHAT ARE THE DIMENSIONS IN THE DELAY FINDER SCREEN? |
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Definition
•Relative amplitude vs. time
(bottom window is a 10x magnification of the upper window). |
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Term
| IN SIM II WHAT DOES FIFO STAND FOR? |
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Definition
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Term
| IN SIM II WHAT IS THE HOT KEYS FOR THE TRACE OFFSET? |
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Definition
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Term
| IN SIM II WHAT IS THE HOTKEY TO TURN THE GENERATOR – PINK NOISE ON? |
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Definition
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Term
| IN SIM II WHAT IS THE HOTKEY TO SET THE AUTOSET DELAY? |
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Definition
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Term
| WHAT ADVANTAGES DOES A PARAMETRIC EQ HAVE COMPARED TO A GRAPHIC EQ? |
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Definition
| Adjustable center frequency and adjustable bandwidth |
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Term
| WHAT IS COMPLIMENTARY EQUALIZATION? |
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Definition
•Creating the opposite in gain
•Matching the Bandwidth
•Matching the Center frequency |
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Term
| WHAT IS ERROR IN CENTER FREQUENCY? |
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Definition
| When the center frequency of the anomaly and the center frequency of the correction do not match. |
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Term
| WHAT IS ERROR IN BANDWIDTH? |
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Definition
| When the bandwidth of the anomaly and the bandwidth of the correction do not match. |
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Term
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Definition
| Two signals arriving at different times near equal amplitude; causing cancellation of linear frequencies. |
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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
•Time Offset
•Level Offset |
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Term
| HOW DO YOU CALCULATE FOR COMB FILTERING? |
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Definition
•F = 1/t(seconds)
•1st null = f/2 |
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Term
| WHY IS IT CALLED COMB FILTERING? |
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Definition
| On a linear scale it looks like the bristles of a comb. |
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Term
| WHAT ACTIONS COULD YOU TAKE TO REDUCE COMB FILTERING? |
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Definition
•Delays
•Level offset
•High Pass Filters
•Noise Gates |
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Term
| WHY ARE EQ’s BLAMED FOR POOR RESULTS WHEN TRYING TO CORRECT COMB FILTERING? |
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Definition
| It’s a time problem, it cannot be corrected with frequency. |
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Term
| WHAT 3 APPLICATIONS THAT SIM 3 CAN BE USED FOR? |
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Definition
•Device Analysis
•Speaker Analysis
•Room Analysis |
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Term
| IN SIM 3 WHAT ARE THE 2 SCREENS IN THE FREQUENCY RESPONSE TAB IN THE "GROUP" VIEW? |
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Definition
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Term
| WHAT ARE THE 3 WINDOWS IN THE BAND SPECTRUM SCREEN AND WHAT IS THEIR SIGNIFICANCE? |
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Definition
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Term
| IN SIM 3 HOW MANY DIFFERENT MODES ARE AVAILABLE? |
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Definition
•Free Run
•Single System
•Lobe Study
•Combine Systems
•Show
•Mic EQ
•Console Check
•Mic Compare |
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Term
| WHAT ARE THE 2 TYPES OF SPECTRUM ANALYSIS VIEWS IN SIM 3? |
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Definition
| Band Spectrum and Line Spectrum |
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Term
| WHERE DO YOU TOGGLE PHANTOM POWER FOR SIM 3? |
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Definition
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Term
| WHAT IS THE MOST SIGNIFICANT UPGRADES MADE TO SIM 3 FROM SIM 2? |
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Definition
| Ability to do multi-channel and CD-Rom |
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Term
| WHAT ROLE DOES THE GALILEO PROCESSOR PLAY IN SIM 3 MULTI-CHANNEL? |
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Definition
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Term
| WHAT FUNCTION OF THE GALILEO PROCESSOR CAN BE CONTROLLED FROM SIM 3? |
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Definition
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Term
| How many mics can you input to 1 mic switcher? |
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Definition
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Term
| Name the Branch Measurement Points? |
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Definition
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Term
| Name the three frequency responses in a branch. |
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Definition
•Processor
•Speaker+Room
•Result |
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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
| What are the two variables for a Primary Mic Placement? |
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Definition
| +/- 10 degrees on axis & center of listening area |
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Term
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Definition
| An upside down EQ, cuts look like boosts and boosts look like cuts. Used as a reference when tuning a system. |
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Term
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Definition
| When measuring one system at a time, the other systems are muted. |
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Term
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Definition
| The primary system being studied is muted while looking at the other systems interacting. Look for bleed-over. |
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Term
Name the six traces of the following SIM Screen shot.
[image] |
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Definition
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Term
| What are the 7 steps to Analyze a Stereo System? |
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Definition
•Preliminary Prep
•Interfacing SIM w/Sound System
•Initial Testing
•Testing for Harmonic Distortion
•Finding the Delay offset
•Initial EQ
•Adding the Systems Together
•Show Mode |
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Term
| What kind of mic is used for acoustic measurement? |
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Definition
| Omni Directional w/ Flat Freq Response |
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Term
| What happens when a measurement microphone is angled 90 degrees from the source? |
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Definition
| At 5k and above starts to roll off |
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Term
| Where should the secondary mic placement be? |
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Definition
| Anywhere in the listening area |
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Term
| Typically, where should we not place the measurement microphone? |
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Definition
•Near walls or Pillars
•Exact center of rooms
•In the Aisles (expect in line array situations) |
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Term
| When should we use sitting height for the measurement microphone position? |
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Definition
| In Recording Studios and Frontfills (First 3-4 rows) |
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Term
| Why does Auto-EQ not work? |
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Definition
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Term
| What are the initial EQ considerations in Studios? |
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Definition
•Sweet spot must be wide enough for both ears.
•Pay close attention to the s/n or coherence.
•Only EQ for the low q problems (wide) – don’t worry so much about the high q issues. |
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Term
| Which company manufactures the Galileo? |
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Definition
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Term
| What is the name of the software used with the Galileo? |
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Definition
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Term
| What kind of cable is used to connect the Galileo to the measurement system? |
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Definition
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Term
| NAME THE 3 FORMS OF PARTICLE MOTION. |
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Definition
•Cylindrical wave
•Transverse
•Longitudinal |
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Term
| WHAT IS THE FORMULA TO CALCULATE THE SPEED OF SOUND, KNOWING ONLY THE TEMPERATURE? |
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Definition
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Term
| HOW DOES TEMPERATURE AFFECT THE VELOCITY OF SOUND? |
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Definition
•If the temp goes up the speed of sound goes up.
•If the temp goes down the speed of sound goes down. |
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Term
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Definition
| •The distance a wave travels to complete one cycle |
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Term
| HOW DO YOU CALCULATE WAVELENGTH? |
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Definition
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Term
| HOW DO YOU CALCULATE OCTAVE RELATIONSHIPS? |
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Definition
| •2:1 ratio a doubling of frequency |
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Term
| HOW DO YOU CALCULATE HARMONICS? |
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Definition
| •Multipliers of the fundamental |
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Term
| WHAT IS THE FORMULA TO CALCULATE A RANGE OF OCTAVES? |
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Definition
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