Nexo GeoSoft Manual
Contents
1. y 3 z Ej y Jo de af si iz a i Mi i o 3 Cluster Design foxu 4 has E 125 2 00 2 00 laa Pressure Distance eo en cs ajajaja Fi fal Ar ho Ei 3 3 sla 2 salia e Figure 6 GEO cluster design ready When you are satisfied that your dBA black trace is at an adequate level and the HF red trace is as flat as you can make it by adjusting the cabinet angles you should record all the information from the cluster design window You will need the bumper height and angle data as well as the splay angles between cabinets when you assemble and hang the GEO cluster DATE 3 27 2003 13 Nexo S A 154 all e des Erables ZAC des PARIS NORD II B P 50107 CDG Cedex FRANCE Tel 33 1 48 63 19 14 Fax 33 1 48 63 24 61 E mail info nexo fr Nexo Limited 9 Lyon Road Walton on Thames Surrey KT12 3PU UNITED KINGDOM Tel 44 1932 886 007 Fax 44 1932 E mail info nexo sa com Nexo Far East Pte Ltd 101 Lorong 23 Guying 06 04 Prosper House SINGAPORE 388399 Tel 65 742 5660 Fax 65 742 8050 E mail info nexo sg com Nexo Inc 2165 Francisco Boulevard Suite E2 San Rafael CA 94901 USA Tel 1 415 482 6600 Fax 1 415 482 6110 E mail info nexo cc www nexo sa com2. is entered since the 0 0 point is between the cluster and most of the audience In the three following examples the Rigging Point would have an X depth value of 8 and a Z height value of 39 The intended coverage area starts at 0 0 Each Slope Point uses the distance and height information you enter to represent a location along the audience floor relative to your 0 O reference point You can enter negative height values but you should not have decreasing slopes the software will not process this information properly Balconies can be represented by a slope from the floor directly below the front of the balcony to the floor just behind your last audience position at the top and back of the balcony The following examples should clarify how GEOSoft slopes represent typical audience profiles Define Venue Section Views Remember the ngging point height refers to the floor of the audience to the Geo Bumper not height abowe the stage The depth will also be entered as a negatiwe number in Point 1 refers to the back GeoSoft of the audience referenced to our 0 0 point at the front of the audience One slope to represent audience profile Floor level at first row of audience is AA the 0 0 reference point for dimensions to be entered in GeoSoft e Figure 1 Single slope room dimension example DATE 3 27 2003 h ag 10 W GEOSOFT V1 0 HELP MANUAL Point 2 refers to a point behind th
3. m kilogram kg units system switching from US to SI does not change the Venue Geometry field values and scales up the Company project eut rr US The project is defined in the feet ft pound Lb units system switching from SI to US does not change the Venue Geometry field values and scales down the project Cvrt Converts from SI units to US units or from US units to SI units the project remains the same the Venue Geometry field values are changed accordingly Tools Menu File Units Tools Help Hold Plot Hold Plot MAA Y Holds the pressure plot in dashed lines until Hold Plot is released The pressure Project Remove 1 Box plot is released if one of the Venue Geometry field values is edited Add 1 Box Top Adds one S805 T4805 at the top of the cluster set angle value is 0 31 degree for S805 0 12 degree for T4805 Add 1 Box Bottom Adds one S805 T4805 at the bottom of the cluster set angle value is 5 degrees Remove 1 Box Top Removes one S805 T4805 at the top of the cluster Remove 1 Box Bottom Removes one S805 T4805 at the bottom of the cluster Help Menu Nexo Geozoft v1 0 File Units Tools Help Geosoft Help Geosolt Help GENERA About Geosott Project Company Author Opens the GeoSoft Help Manual About Geosoft GeoSoft Version and release date DATE 3 27 2003 5 GEOSOFT V1 0 HELP MANUAL FIELDS DESCRIPTION General Information GENERAL INFORM
4. 5 to S830 17 5 degrees S830 to S830 17 5 30 degrees T4805 to T4805 0 12 0 20 0 31 0 50 0 80 1 25 2 00 3 15 5 00 degrees T4805 to T2815 6 30 8 00 10 00 degrees T2815 to 12815 6 30 8 00 10 0 12 5 15 0 degrees T4805 1 T4805 2 T4805 3 T4805 4 T4805 5 T4805 6 T4805 7 T4805 5 T4805 4 T4805 10 T2820 1 T2820 4 T2820 3 Step Non editable field gives the distance between targeted points on the audience Venue Geometry VEHUE GEOMETRY Floor Slopes E Standing y Audience Bumper PRE Pte PRES PA PIS PER Number of slopes that can properly describe the venue side xap Ts tof f f aof sof s geometry Can be set from 1 to 6 Ztheight 20 1 2 3 4 5 E Floor Slopes Audience Audience seating or standing for pressure mapping Seated sets ear level at 1 20 meter 3 9 feet Standing sets ear level at 1 60 meter 5 9 feet DATE 3 27 2003 T GEOSOFT V1 0 HELP MANUAL NED O Bumper X depth When cluster flown top of the first cabinet horizontal position in relation to point 0 of venue side geometry set at X 0 When cluster stacked bottom of the first cabinet horizontal position in relation to point 0 of venue side geometry set at X 0 Bumper Z height When cluster flown top of the first cabinet vertical position in relation to point 0 of venue side geometry set at Z 0 When cluste
5. ATION Project Project I company Enter the project name Author Date Company Enter your company name Author Enter your name Date Enter the date default date is your today Cluster Design CLUSTER DESIGH S eaker T e Speaker Type S Series P yP Cluster Type own S8 series S805 S830 or T series 14805 T2815 Guantity of 5305 16 Guantity of 5830 14 F Cluster Type Flown Bumper is set at the top of the cluster angles sum from top to bottom or Stacked Bumper is set at the bottom of the cluster angles sum from bottom to top Quantity of S805 T4805 Sets S805 quantity limited to 24 when flown 8 when stacked or T4805 quantity limited to 40 when flown 8 when stacked Quantity of S830 T2820 Sets S830 quantity limited to 4 when flown none when stacked or T2815 quantity limited to 8 when flown none when stacked DATE 3 27 2003 6 COD Angle deg Step 5805 1 CDD 55805 2 53805 3 5505 4 Refers to the Geo waveguide Configuration Directivity Device only in S8 series horizontal coverage is 80 degrees when off 120 degrees when on 3805 4 5 5505 6 S005 7 5505 6 5530 1 Angle eee First cabinet angle which is identical to the bumper angle must be entered manually and has is limited from 60 degrees to 30 degrees Choices between the cabinets are S805 to S805 0 31 0 50 0 80 1 25 2 00 3 15 5 00 degrees OS S80
6. NEXO GEO Series GEOSOFT v1 0 HELP MANUAL GEOSOFT V1 0 HELP MANUAL A A 3 VIE NG SELEC HON outdoor 4 PENIG a ene ee ee eee eee ee eee 4 A E cea ne ascent eae eek Se ne ce eta Se eee 4 E ER e E enn ees cece sa ca ne ascent ea ree es E Nets E 4 OTe NV SW Oo Re aE ee Ce ne ee en eee eee eee ee ere eee ee eee 4 AO eee 4 EXPO Ms A idad 4 EXON DOC A A RS 4 Printer Settings ida E A A is 4 A A oe dares Jeeta eas tocar Saag ae Ses neh odesas seehaatied Voces ei ones ae ded deae acasdee Medes leat ececess 4 PP iseedceae E Yasue Sees eacaced eee tass Seance Voces des cccazacs 4 AS MENU arene ter a a e O e SO e ee a eia 5 A A ent A eae entrain ES Ne one en bite 5 PP A eae A a tiara E tag tence 5 Ceci E A ec wel E A A do 5 TOIS MONU dase AS dos 5 A e o II ed at abate A ahah ant Ae aidan ae teint tence ode 5 Adda BO TON A A ee ee ene eee ee 5 Ad BOX BOOM A das 5 Remove BOX OD A dios 5 Remove 1 BOX BOOM RS A A A OS 5 A AAA A e e 5 E can o ee ee ee 5 A A E E A A ee ee ee 5 PIE PIS ESC Re TION le et tp acne 6 Care Mio o A A er ert Reed at nN CME a Ni ce d fi ee 6 A A ete tine et ie 6 COPAR PPP A E ein Cet A ne ee de ie 6 AUNO ena er a eee erase eC ure ey cee eg 6 BB Fe CoRR eet emer eae eee e ee E EEC an Sn se ee een ee ene eee 6 Cluster Desiderio odo eco ne en 6 D DORE DID ES PO a a a sactuaceeectese tan en LER 6 CDS PNR O EE en Re in Demi ee eee ee eee eee 6 QUantiy OF SG05 IA a a a Sess eed igh ad anse os 6 Quant OF S630 T
7. Z Lio NS na NN i a iles fin 6 CD de na na ee ea de de ei te 7 A T ED O A A E ci T Vende Ss A A 7 o A O nee eee ae eee eee 7 PRICING Capes ata O A EE T o orie e e i e ae ea 8 BUMperzilclOn ninnaa e a a a e ie RS init 8 Ponts F L106 ACCORDE rater emer eae reer eee errr eae eine ee nl 8 Polis FO 770 Zeb Re en a a a a 8 SO set eu tadeat RP PRE SSP RUE ER DA 8 Re SI 1 1 AE A e ee eee eee eee oer eee eee eee 8 Eres MIS ge ia 9 GE RINGO TARTE D e id ts E stas 10 Obtain Dimensions of the Rigging Location Audience Area iii 10 Define Vente SECON VIEWS seran A 10 Use GEOSoft to Plan and Design your GEO Cluster ins 11 DATE 3 27 2003 2 GEOSOFT V1 0 HELP MANUAL INTRODUCTION GEOSoft software is a MatLab based application It processes measured speaker data with complex mathematical algorithms to assist the user in designing vertical GEO Tangent Arrays that provide even SPL throughout the depth of the audience Due to the complexity of the interaction of multiple cabinets it is simply not possible to reliably design curved vertical arrays without using the processing power of a computer to predict the optimum array structure for a given audience geometry The design logic is far more complex than looking at a section drawing of the venue measuring the overall angle needed to cover the audience from your cluster location and dividing by 5degrees to determine the number of S805 cabinets you will need GEOSoft is an easy to use to
8. e last row of the balcony Remember the ngging point height refers to the floor of the audience to the Geo Bumper not height abowe the stage The depth will also be entered as a negative number in Geo Soft Point 1 refers to a point directly below the first row of the balcony Floor level at first row of audience is a the 0 0 reference point for dimensions to be entered in Geo Soft e Figure 2 Two slope room dimension example Point 43 refers to a point behind the last row of he balcony Re seme i Remember the rigging point height refers to the floor of the audience to the Geo Bumper not height above the stage The depth will also be entered as a negative number in Geo Soft ay Point 1 refers to a point Three slopes to represent audience profile were the Slope of the main floor changes a Point 2 refers to a point U directly below the first row z H of the balcony TTT TTT T ts dle Floor lewel at first row of audience is the 0 0 reference point for dimensions to be entered in Geo Soft e Figure 3 Three slope room dimension example Use GEOSoft to Plan and Design your GEO Cluster Open the GEOSoft Software You should see the application window and it should look like Figure 4 GEOSoft Opening Screen DATE 3 27 2003 11 GEOSOFT V1 0 HELP MANUAL hemo Geosat wi 0 VENUE GLOMLIRY Finor Stopes 5 l tanara Audience Duper FAT Pie MAJ PA PES MG wep o
9. f inf mf af af sf 6 ze a 1 3 af 5s CLUSTER WEY WLAUL SIOL WIL T T T Er r hihi e Figure 4 GEOSoft Opening Screen You can name your project or enter some notes to identify this cluster design in the General Information box in the top left corner of the program window You can also change the dimensional units from the default metric meters to English feet if you wish See Figure 5 General Info and Venue Geometry updated Venue Geometry hemo Geosat wi General Information CLUSTER WEY WERUL SIOL WILS T T T Fr F ilid Venue Side View e Figure 5 General Info and Venue Geometry updated DATE 3 27 2003 12 GEOSOFT V1 0 HELP MANUAL NED O Enter the number of floor slopes and their distance and height values using the Venue Geometry box in the upper right corner of the window As you enter information the Venue Side View should update its graphic representation of the venue section view This view represents what you would see if you were to cut the venue along a plane directly in front of the cluster See Figure 5 General Info and Venue Geometry updated Enter and adjust data in the Cluster Design box on the left side of the screen Begin by setting the number of S805s T4805s according to either a the maximum you have available a quantity appropriate to the venue in which you will be working see General Application Guidelines Do not set any S830 T2815 box until you find that it
10. hygrometry gradients do not allow to make any reliable prediction Provided curves are dBPeak grey curve computed from 300 Hz to 3000 Hz dBA black curve computed from 63 Hz to 16 kHz A weighted dBMIF red curve stands for dB Make It Flat for good results this curve has to fit within 3 dB on the audience area Important GeoSoft simulation does not take in to account any room contribution floor reflection reverberation nor another cluster contribution Consequently dBPeak and dBA values are pessimistic values that can easily increase from 3 to 6dB DATE 3 27 2003 9 GEOSOFT V1 0 HELP MANUAL Obtain Dimensions of the Rigging Location Audience Area All you need in order to enter accurate and complete information into GEOSoft is a simple dimensional cross section of the venue or outdoor audience area in front of the GEO cluster s Dimensions are referenced to a 0 0 point at the first seat of required coverage You will need to enter e the distance from the 0 0 point to a point directly below the front of the GEO cluster on the audience level e The height of and distance to the endpoints of slopes that provide a representation of the ground or floor profile of your audience area e The height of the GEO cluster see note in the lower left corner of the following diagrams GEOSoft defines the rigging point as the top front of the GEO Bumper This often means that a negative number
11. is impossible to provide even coverage in the front rows without increasing the level beyond what is appropriate for the event As you enter and change data you will see the Pressure Distance plot update Continue working with your Cluster Design data until the Pressure Distance plot displays as flat an HF red trace as possible and the dBA trace black shows sufficient level for the application In general this requires that you have a long enough cluster for the venue and that the angles between adjacent array elements increase from the top to the bottom of the array You will often find that aiming the top cabinets past or above the end of the audience area will provide the flattest response in rear just check your section view to make sure you will not be exciting large reflective surfaces if you deploy this cluster design For more information on the concept of curved vertical tangent arrays read Curved Vertical Tangent Arrays A Conceptual Model in this manual See Figure 6 GEO cluster design ready alll GURLRAL INFORMA THOM CLUSTER DESIGN VENUE GEOMETRY NEXO Prt Seer Typa sees T Finn Siopa fe andre gt ENT vel Company Allo pt mewn Dumper Fa PS Q co Author Quantity of TSE i wae of inf ml afl anf so en ae Date 3a ren2ons Guanti of 7945 a rmegn 15 i 7 af al 5 E VERE SIDE WEW m E ajarerea ala E eee a 4 4 E d a r ad Tai r a bb ao
12. ol that will allow you to shape the energy leaving the cluster to fit your audience In addition you will be able to predict the average and peak SPL of the system to ensure you have provided enough cabinets for the application GEOSoft software is an acoustic prediction tool and does not provide any information regarding safe assembly Please refer to the Geo User Manual Safety Section for advice concerning Geo Tangent Array Assembly System installation and handling Please check the NEXO Web Site www nexo sa com periodically for upgrades DATE 3 27 2003 3 GEOSOFT V1 0 HELP MANUAL MENU SELECTIONS File Menu File Units Tools Help Open Open FORMATION Opens a mat file and loads a previously saved configuration Save Save As Export k Save Printer Settings Print Saves the configuration Exit Er J Angle deg Step Save As Saves the configuration as filename mat approximate size 2 ko Export Bitmap Exports the window in a bitmap format approximate size 3000 ko Export Tif Exports the window in a tif format approximate size 500 ko Export Jpeg Exports the window in a jpeg format approximate size 180 ko Printer Settings Configures the printer settings Print Prints the window Exit Ends the Geosoft session DATE 3 27 2003 4 GEOSOFT V1 0 HELP MANUAL NED O Units Menu File Units Tools Help SI US RAL INFORMATION The project is defined in the metric
13. r stacked bottom of the first cabinet vertical position to point 0 of venue side geometry set at Z 0 Points 1 to 6 X depth Venue Points 1 to 6 horizontal position in relation to point 0 of venue side geometry set at X 0 Points 1 to 6 Z depth Venue Points 1 to 6 vertical position in relation to point 0 of venue side geometry set at Z 0 Important decreasing slopes should be avoided as much as possible because of non predicted and non predictable shadowing effects CLUSTER VIEW Cluster view Simplified cluster drawing Non operational when total cabinet quantity exceeds 24 Venue Side view VEHUE SIDE VIEWS x meters Shows cluster venue side view and audience ear level dashed line DATE 3 27 2003 8 GEOSOFT V1 0 HELP MANUAL Pressure Plot Gives pressure level values at ear level over the audience zone PRESSURE PLOT 124 O ere des eee eee eer A eer eee an A A A E seems te T E TA eee eee een ln EE RE EEE RER RER a ae ae eee eee ates SOEUR RES A O a E bat sama be Sean A A RE Pen SRE 100 dEPeak a e A eee ES ER eee eee ee des i i i i i i i i MIF Sais een cesan A A Connie NC ect Po Fo d hb 10 a 10 20 30 40 50 50 x meters Simulation conditions are as follows test signal IEC268 filtered Pink Noise free field air absorption is not taken into account Important for distances superior to 80 meters 260 feet temperature wind and
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