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B2-GRQ-OpGuide-v9-031020.pmd

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 GRQ2 R

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OFTWARE

8.2.7.  Compressor/Limiter Adjustments

Compressor/limiter controls are located below the EQ curve display on the main Graphi-Q remote screen.
You may adjust settings by clicking (left button) on a virtual knob or control and moving your mouse, or
by clicking with the right mouse button and typing in a value.  In the former instance, a pop-up window
will appear to show the chang-
ing parameter value as you
make adjustments.

In addition, you may click the
Compressor button to the
right of the Curve Display,
choose Compressor/Limiter
from the Main Menu, or press
F3.  In each case, the screen
shown at right will appear.

Within the Compressor/Limiter screen, you may change values for any of the seven compressor/limiter
parameters (Ratio, Threshold, Gain, Attack, Release, Knee, and Limiter threshold) by clicking in the field
and typing in a value, or clicking in the field and using the scroll bar at the bottom of the screen.  For all
parameters except Limiter threshold, you may also use the knobs at the bottom of the main screen.  All
parameter value indicators (knob position, numeric indicator, and scroll bar position) will co-vary. In
addition to these indicators, the Compressor/Limiter screen will graphically display the dynamic
relationship of input and output levels.  (The front panel gain metering on the Graphi-Q will also reflect
remote control settings.)

For GRQ3122 and GRQ3122-S models, you may choose to have your compressor operate in either True
Stereo mode, or Dual Mono mode. In Dual Mono mode, the compressor for each channel acts
independently.  In True Stereo mode, the two channels interact to preserve stereo imaging, and a signal
peak that exceeds the threshold in only one channel will be compressed in both channels. The more
extreme ratio setting of the two channels will be the ratio applied to both signal paths as well.

Note that stereo compression is distinct from linked compressor settings.  See 

Section 8.3.2.5.

Compressor Linking Options for GRQ3122 and GRQ3122-S Models

, for more information on these

options and how they affect compressor operation.

8.2.8.  Digital Delay Adjustments

Digital delay can be set from the main remote screen by three methods:

1.

Using the up/down arrow keys below the delay readout

2.

Right clicking on the delay read-
out, which will allow you to type
and enter a delay value.

3.   For a more detailed look, you can

access the Digital Delay Screen
by either selecting Digital Delay
from the Main Menu, hitting the
F4 key, or selecting the Delay
button.  The screen shown at right
will appear.

Inside the Delay Screen you may change the delay length by either using the horizontal scroll bar, or
highlighting a field and typing the desired value.  Note that all three scales (time, meters, feet) change
together.  Front panel delay displays will update when values are changed using the Remote Software.

Caution:

  We do not recommend making large changes in delay settings (or loading presets with large

differences in delay settings) when program  is playing through your system.  Pitch shifting may temporarily
occur as delay is adjusted.  You may bypass the delay section without pitch change occurring, but the time
relationship will change. In addition, to avoid “pops and clicks” in the audio signal, digital delay changes are
implemented in steps rather than all at once, and will take a bit longer to be fully realized.

8.2.8.1.  Temperature Gauge for Digital Delay

The speed of sound changes as a function of ambient air temperature.  Therefore, the delay compensation

Control Tip

You can always right-
click any control knob
to reveal the keyboard
entry window for any
parameter.

For GRQ3122 and
GRQ3122-S models,
this box on the com-
pressor screen allows
the compressor to be
set to True Stereo or
Dual Mono operation.
This option is not avail-
able for the GRQ3121
or GRQ3121-S models.

Summary of Contents for GRAPHI-Q2

Page 1: ...mpressor Limiter with controls for ratio threshold and gain attack release and knee adjustable with remote Digital Delay with up to 1 second delay adjustable in 20 microsecond increments Bypass dedica...

Page 2: ...E MARKING We the Manufacturer SABINE INC 13301 NW US HIGHWAY 441 ALACHUA FLORIDA USA declare that the product EQUALIZER SABINE MODEL GRQ3100 Is in conformity with Council Directive 73 23 EEC and 89 33...

Page 3: ...Y SOFTWARE 18 6 9 FRONT PANEL CONTROL OPTIONS 18 Section Seven GRQ2 Remote Software Installation 19 7 1 SYSTEM REQUIREMENTS AND RECOMMENDATIONS 19 7 2 CONNECTIONS 19 7 3 INSTALLING THE SOFTWARE 20 Sec...

Page 4: ...but also offer an expanded range of adjustment and ease of storage and recall that are much more difficult to achieve with analog technology And with the Sabine FBX algorithm one of the most serious...

Page 5: ...LESS FILTER DRIFT Analog circuits rely on components that vary as they age and or are subjected to different ambient temperatures This variation can in turn cause analog filters to drift from their or...

Page 6: ...cut for 31 specific frequencies High Low Cut Filters Input signal gain reduction indicators Digital Delay up down controls EQ range Press up down buttons simulta neously to toggle EQ range between 6...

Page 7: ...122 Front Panel G G G G GR R R R RQ3 Q3 Q3 Q3 Q3122 Bac 122 Bac 122 Bac 122 Bac 122 Back Panel k Panel k Panel k Panel k Panel G G G G GR R R R RQ3 Q3 Q3 Q3 Q3122 S Bac 122 S Bac 122 S Bac 122 S Bac 1...

Page 8: ...8 Section Four Block Diagram Internal Signal Path SECTION FOUR BLOCK DIAGRAM INTERNAL SIGNAL PATH...

Page 9: ...g console and the input to a power amplifier In this configuration the GRQ2 can provide all your system processing including delay and crossover A typical configuration will look like this This config...

Page 10: ...label them differently When in doubt consult the manual of the console manufacturer 5 4 USE AT A MIXER INSERT POINT The Graphi Q2 may also be used at a mixer insert point either for a single input ch...

Page 11: ...and delay settings can be unique on each output 5 6 WHAT NOT TO DO The Graphi Q2 should NOT be used in the following configurations 1 Do NOT plug a microphone directly into the Graphi Q2 back panel Th...

Page 12: ...TROLS Please make note of the default front panel control protocols that apply when setting graphic EQ FBX filters compression delay and output level for the two outputs of the single input Graphi Q2...

Page 13: ...phic EQ sliders For the LOW CUT FILTER the Graphi Q2 will attenuate frequencies at and below your knob setting with a slope of 12 dB per octave For the HIGH CUT FILTER frequencies at and above the kno...

Page 14: ...tions thereof of a filter including graphic EQ filters parametric filters and FBX filters More specifically width is defined by determining the outer frequencies surrounding the filter center point th...

Page 15: ...arespecifictoeachchannel of your sound system STEP ONE EQUIPMENT SETUP Set up your sound system and position all the speakers and microphones you anticipate using When possible avoid placing microphon...

Page 16: ...back a second time and an earlier filter will notch more deeply Whenthishappens theoriginalLEDindicatingthisfrequencywillblink showingittobethemostrecently active filter Repeat this procedure until on...

Page 17: ...for usingtheGraphi Q2RemoteControlSoftwareCompressor Limitercontrol 6 6 DIGITAL DELAY CONTROLS 6 6 1 Front Panel Control DIGITAL DELAY controls are located to the right of the COMPRESSOR controls You...

Page 18: ...er settings choose Global Parameters F5 key from the MAIN MENU or Global fromwithintheFBX Parametricscreen Youmaychangeanyvaluewithintheindicatedranges and your new settings will be used as new defaul...

Page 19: ...ted user to load settings No cost future proof upgrading Your Graphi Q2 can be updated via a simple connection to the Sabinewebsite www Sabine com wheneverfirmwareand orsoftwareupgradesareannounced Al...

Page 20: ...led GRQRemote NOTE forupdatingsoftwareorre flashingfirmware seesection8 10 UpgradingGraphi Q2Firmware andSoftware TECH TIP PC can t find Graphi Q2 Try these tips if you are having difficulty con necti...

Page 21: ...your computer you can set up two distinct networks of Graphi Qs each consisting of up to eight units NOTE one COM port chain cannot communicate directly to another only within its own chain Double cli...

Page 22: ...for a description of the control protocols for GRQ functions 8 2 1 Graphic Equalizer Changing EQ slider settings can be accomplished in three ways 1 Click and drag the desired EQ slider with the mouse...

Page 23: ...type a value or 3 Adjust the gain knob in the Compressor Limiter section of the Remote Software main screen Compressor Gain and Output Level Controls are redundant and will change together 8 2 5 FBX F...

Page 24: ...obal Parameter Link Indicator Important Note on Equipment Power on Sequencing and Feedback Suppression The Graphi Q2 is similar to a computer in that it requires several seconds to boot up and become...

Page 25: ...first dynamic FBX filter have been set or when Setup is turned off by clicking on the Cancel Setup button Fortwo channelsystems AutoSetup willpromptyoutoperformthesamesetupforthesecondchannel orexitto...

Page 26: ...The A output is for the low frequency band and the B output is for the high frequency band GRQ3122 or GRQ3122 S These are 2x2 units When using the crossover use only the A channel input Engagingthecr...

Page 27: ...channels will be the ratio applied to both signal paths as well Note that stereo compression is distinct from linked compressor settings See Section 8 3 2 5 CompressorLinkingOptionsforGRQ3122andGRQ31...

Page 28: ...ass controls are located at the bottom of the main screen and are activated by clicking the appropriate bypass boxes Active front panel units will display the appropriate bypass status as well The Rem...

Page 29: ...meters for ABSOLUTELY LINKED cells will be copied to the identical setting The first cell you choose for your ABSOLUTE LINK group will be the source value forcopying andwillbehighlightedwitharedcolor...

Page 30: ...AlllinkingthatinvolvestheA channelforsuchunits will automatically be applied to the B channel as well 8 3 2 2 Bypass Linking Bypass ActivestatusforallparametersisNOTincludedunderthecontroloflinkedcell...

Page 31: ...ort in the other screen 1 In the Link Table enter the letter S in the appropriate channel boxes and click Apply 2 IntheCompressor Limiterscreen youmaytoggletheboxbelowtheCLOSEbuttontoengageeither True...

Page 32: ...6 to 12 dB or vice versa will also change the scale for all linked units graphic EQ settings For REL LINK all scales will not change when one unit s scale is altered Instead all changes made will be i...

Page 33: ...f how controls are linked for a multiple unit Graphi Q2 system Simply select PRINT from within the link table If you are out in the field and not attached to a printer you can use the Off Line Edit De...

Page 34: ...Control screens will display these manual adjustments but remote control will be disabled The Curve Display on your monitor will indicate Preset 1 Front Panel in Control 2 Any adjustments made manuall...

Page 35: ...tputs mostoftheparametersettingscanonlybesettoidenticalvalues forbothoutputs Fortheseparameters thesettingforchannelAoftheGRQ3122 savedpresetwillalso be copied to the B output for the GRQ3121 destinat...

Page 36: ...f Line Editing FromtheGraphi Q2WelcomeScreen Section8 1 thatappearsuponlaunchingtheprogram youmay click on the Off Line Edit Demo button instead of connecting to actual Graphi Q This will open the sof...

Page 37: ...e Graphi Q should set passwords To do this open the PASSWORD screen from the Tool Bar at the top of the main screen The PASSWORD screen looks like this Click the EDIT PASSWORD box The three password b...

Page 38: ...fortheGraphi Q2 You can determine your Graphi Q2 s current firmware version by one of two methods 1 For front panel models GRQ3121 or GRQ3122 the firmware version will flash briefly in the digital del...

Page 39: ...If you re moving your sound system around and can t rebuild the room each time you move or if you re working in an environment where you ve done all you can to improve the acoustics here are a few rul...

Page 40: ...mon examples would include audio hum induced by AC electrical current 50 or 60 Hz plus harmonic multiples of those frequencies or acoustical feedback that arises when amplified sound is directed back...

Page 41: ...ers the more extreme the boost or cut the more ripple peaks or dips centered at the EQ slider frequencies there will be in the resultant system frequency response VARY LEVEL AND LOCATION If you re mak...

Page 42: ...requencyspeakersinmovietheatersbyfeeding a sharp click through the system They moved the speakers until they could only hear a single sharp click coming from both speakers You can use this same method...

Page 43: ...ine to form visibleinterferencepatterns In some places the wave crests and troughs are in phase so theycombinedtomakealarger wave Inotherplacesthecrests are out of phase so the crest of one wave sourc...

Page 44: ...in every live sound system and they cannot be corrected with equalization Fortunately most comb filter problems can be reduced to a minimum by synchronizing the signals and reducing the amplitude of...

Page 45: ...f the signals from the under balcony speakers arrive within 10 msec of the signals from the center cluster Therefore we should set the delay to 65 69 msec You can allow a little more reverberation for...

Page 46: ...ffect to the second performer by placing the Graphi Q in the mixer s channel insert point and adding a 25 msec delay Certainly taking advantage of the Precedence Effect is not as obvious to the audien...

Page 47: ...ften added to the entire audio mix both in live sound and recording to increase its perceived loudness Mix consistency For expressive instruments or vocals which may have a large dynamic range compres...

Page 48: ...gain change at the input level for signal levels that rise above the threshold Acompressionratioof4 1iseffectivelyalimiter nomatterhowmuch loudertheinputrisesabovethethreshold theoutputlevelremainsun...

Page 49: ...h the signal is compressed once the gain exceeds the threshold Attack is generally set to a very quick response and can be varied from 1 to 99 msec Release Release sets the speed with which the output...

Page 50: ...catches all hits medium attack quick release gain makeup boosted slightly soft knee BASS GUITAR Bass players use a variety of tech niques often in the same song that can benefit from compression Comp...

Page 51: ...aphi Qpatchedinan effects or auxiliary loop you will only catch the feedback in the effects loop and not the mixer input channel Or you may have usedupalltheavailableFBXfilters leavingnoadditionalfilt...

Page 52: ...ROL DOESN T WORK SIGNAL LOSES GAIN GOING THROUGHGraphi Q2 PARAMETRIC FILTERS DO NOT LINK REMOTE SOFTWARE SCREEN DISTORTED LETTERS DO NOT FIT CORRECTLY The FBX filters will not set on single channel un...

Page 53: ...l GRQ Remote RS 232 Re mote switching GRQ3122 S GRQ3121 S GRQRemote RS 232 Remoteswitch ing SAVE RECALL CONFIGURATIONS 20 user defined 1 factory default 1 most recent configuration power down save 1 f...

Page 54: ...h the receiver is connected Consult the dealer or an experienced radio TV technician for help Canadian Compliance Statement This digital apparatus does not exceed the Class B limits for radio noise em...

Page 55: ...rectly related to the cause of action Such purchase price will be that in effect for the specific product when the cause of action arose This limitation of liability will not apply to claims for perso...

Page 56: ...Contact Closure 35 Linking FBX Filters 28 Linking Front Panel Control 31 Linking Parametric Filters 29 Linking Resetting Parameters 31 Linking FBX Parametric conflicts 52 Linking No Absolute Relative...

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