Meyer Sound SIM 3 User's Guide

USER GUIDEINTEGRATION TOOLSSIM® 3 Audio Analyzer SystemSoftware v1.6.42

4CHAPTER 1 SIM 3 Measurement TerminologyMEASUREMENT: A method of capturing, calculating, transforming, and displaying a sample of data, resulting in a

94CHAPTER 5 The Measurements Group View - allows the user to view the Room trace and the Processor trace in the lower window, giving the ability to

95CHAPTER 5The MeasurementsFigure 5.10. Same Frequency Response trace, zoomed between 600 Hz and 6 kHz (data “blanked” at approximately 3 kHz)5.4.3.

96CHAPTER 5 The MeasurementsTIP: View > Processor Inverted makes equalization cuts appear as boosts and vice versa. See section 7.8.4, Inverse EQ &

97CHAPTER 6The SIM Measurement ScreenCHAPTER 6: THE SIM MEASUREMENT SCREEN6.1. OVERVIEWAll of the SIM 3 measurements and functions are performed via t

98CHAPTER 6 The SIM Measurement Screen6.2.2. Trace Resolution (48 Points/Octave)SIM 3 presents the measured data at a fine resolution of 48 points per

99CHAPTER 6The SIM Measurement Screensignal (low coherence), those sections of the graph are likely to show moving yellow dots rather than a solid tra

100CHAPTER 6 The SIM Measurement ScreenFigure 6.3. Trace cursor positioned on Frequency Response traceView > Cursor Peak Track or the

101CHAPTER 6The SIM Measurement ScreenFigure 6.4. Tabs above the graph windows access the four SIM 3 measurementsTIP: The keyboard “hot keys” A, S, D

102CHAPTER 6 The SIM Measurement Screen6.4. SELECTOR TABThe Selector tab provides access to the Live trace and all of the stored traces. From this tab

103CHAPTER 6The SIM Measurement ScreenFigure 6.7. Hide the Live trace to compare previous measurements by themselves NOTE: If the Live trace

5CHAPTER 1SIM 3 Measurement TerminologyLINE SPECTRUM: The Line Spectrum measurement displays the amplitude of the measured signal at all frequencies b

104CHAPTER 6 The SIM Measurement ScreenFigure 6.8. Memory dropdown list selects available stored Branch measurements to view6.4.5. Secondary Branch D

105CHAPTER 6The SIM Measurement Screen6.4.6. View Measurement CheckboxesThe checkbox on the right of each memory row allows the trace to be placed in

106CHAPTER 6 The SIM Measurement Screen Band Spectrum – RMS, Max, and Hold values are shown for Console, Processor, and Microphone. Line Spectrum

107CHAPTER 6The SIM Measurement Screen6.7. METERS TAB The Meters tab and the Delays tab share the same location in the lower right corner of the SIM 3

108CHAPTER 6 The SIM Measurement Screen CAUTION: When the range in Input Panel Settings is set to 11.3 Vpk or less (+21 dBVpk or less), continuous vol

109CHAPTER 6The SIM Measurement Screen6.8. DELAYS TABThe Delays tab shows the SIM 3 internal delay settings for each of the measurement points in the

110CHAPTER 6 The SIM Measurement ScreenFigure 6.15. View active and muted loudspeakers for the current Live measurementWhen a speaker button is on, i

111CHAPTER 6The SIM Measurement Screen6.10. GENERATOR BUTTONSThe SIM-3022 analyzer features a laboratory-grade generator, providing pink noise, sine w

112CHAPTER 6 The SIM Measurement Screen6.10.3. PulseSelecting Generator > Pulse or clicking the Pls button generates a pink filtered pulse at an ave

113CHAPTER 6The SIM Measurement Screen6.12. CALIBRATE MICROPHONEIn the Band Spectrum and Line Spectrum measurements, a button labeled Calibrate Microp

6CHAPTER 1 SIM 3 Measurement TerminologyMore than one pulse may be seen in an impulse response display trace, indicating either a signal from another

114CHAPTER 6 The SIM Measurement ScreenFigure 6.19. Frequency response trace with a 3 dB per division resolution NOTE: The resolution will ch

115CHAPTER 6The SIM Measurement ScreenFigure 6.20. Use Horizontal Zoom buttons to view sections of the traceTIP: When using the horizontal zoom butto

116CHAPTER 6 The SIM Measurement Screen

117CHAPTER 7Using SIM 3CHAPTER 7: USING SIM 37.1. STARTING A PROJECTSIM 3 works with Project files to keep individual projects separated and organized.

118CHAPTER 7 Using SIM 3To give the project a different name than was entered into the Project field, select File > Save As, type in the new name, a

119CHAPTER 7Using SIM 37.1.5. Closing a SIM 3 SessionFile > Shutdown is the recommended way to close and turn off SIM 3. A dialog opens that asks t

120CHAPTER 7 Using SIM 37.2.1.1. Frequency Response Amp ThresholdA Frequency Response measurement consists only of data at frequencies whose reference

121CHAPTER 7Using SIM 3 NOTE: The Amplitude Threshold setting does not directly affect a Line Spectrum measurement. However, its setting is ve

122CHAPTER 7 Using SIM 3Figure 7.3. Delay Finder Settings dialog, including Amp Threshold levels7.2.2. Coherence (Coh) ThresholdThe coherence thresho

123CHAPTER 7Using SIM 3 CAUTION: The data from the two measurement points used for the transfer function must be synchronized in time in order for the

7CHAPTER 1SIM 3 Measurement TerminologyElectrically, this would be positive and negative voltages, and acoustically this would be the compression and

124CHAPTER 7 Using SIM 37.2.2.3 Adjusting the Coherence TraceThe Coherence trace can be adjusted via the [+] and [–] buttons on the right side of the

125CHAPTER 7Using SIM 3Figure 7.5. Smoothing dropdown list in the Frequency Response measurement NOTE: In the Values table, the amplitude Cur

126CHAPTER 7 Using SIM 37.2.5. Average TimeThe default Average Time (AvgTime) setting for Frequency Response measurements in SIM 3 is Constant Varianc

127CHAPTER 7Using SIM 37.2.7. Autoset Delay (F3)Autoset Delay is used in the Delay Finder measurement to synchronize the three measurement points (Con

128CHAPTER 7 Using SIM 3Measurements can be started in any of the views, but it is best to work in a particular order. Band Spectrum / Line Spectru

129CHAPTER 7Using SIM 3TIP: With the trace stable, it is easier to compare and match stored traces with the Live one, and use the Trace Offset setting

130CHAPTER 7 Using SIM 3Figure 7.10. Group view in Frequency Response, using 8 averagesTIP: With measurements that are likely to be steady-state, such

131CHAPTER 7Using SIM 32. Room: Shows the delay introduced by the distance of the measurement microphone from the loudspeaker(s) being measured. Clic

132CHAPTER 7 Using SIM 3Figure 7.12. Delay Finder measurement, before Autoset Delay (top image) and with trace centered after it is clicked

133CHAPTER 7Using SIM 3After setting delays, move to the Frequency Response measurement by clicking its tab, pressing the F hot key, or using Tabs >

8CHAPTER 1 SIM 3 Measurement Terminologyhave phase (time) differences that lead to an uneven set of additions and cancellations over the frequency ran

134CHAPTER 7 Using SIM 3 NOTE: With a stored measurement, all of the same data is used for each view; with a Live trace, new information is co

135CHAPTER 7Using SIM 37.3.7 Cursor Peak TrackView > Cursor Peak Track causes the cursor to automatically be displayed at the location representing

136CHAPTER 7 Using SIM 37.4. THE STORE / RECALL DATA WINDOW (DATAGROUPS)7.4.1. Overview of DataGroupsVia the Data menu or hot keys and buttons, SIM 3

137CHAPTER 7Using SIM 37.4.2. Storing MeasurementsTo store a measurement, press the Store button in the Selector tab or click Data > Store DataGrou

138CHAPTER 7 Using SIM 3Figure 7.16. The Store DataGroup dialog NOTE: You can use the tabbed Selector window (located at the lower left side

139CHAPTER 7Using SIM 37.4.3. QuickStore (F5)To aid in storing measurements on the fly, Data > QuickStore stores the current measurement data with a

140CHAPTER 7 Using SIM 3Figure 7.17. Make additional notes in the Notepad section of the Store DataGroups dialog NOTE: A previously stored Da

141CHAPTER 7Using SIM 37.4.6. Recalling MeasurementsTo recall any data group via the Data menu, click Recall DataGroup. The Recall dialog appears (Fig

142CHAPTER 7 Using SIM 3Figure 7.19. Memory locations and dropdown lists of stored DataGroups in the Selector tabClicking on any of the Mem A through

143CHAPTER 7Using SIM 3Figure 7.20. Renaming DataGroups in the Recall DataGroup dialog7.4.8. Sorting MeasurementsDuring a SIM 3 session a number of D

9CHAPTER 1SIM 3 Measurement TerminologyThe data from a microphone measurement is specific to the particular location within the room where the micropho

144CHAPTER 7 Using SIM 3 NOTE: To store a DataGroup, simply click the Store... button — the Store DataGroup dialog will appear. To recall a Da

145CHAPTER 7Using SIM 37.5. UNDERSTANDING COHERENCE (VALIDITY OF THE MEASUREMENT)7.5.1. Coherence OverviewThe coherence threshold is the level at whic

146CHAPTER 7 Using SIM 37.5.3. Setting the Coherence ThresholdCoherence Threshold percentages from 90% to 0% can be set within the Frequency Response

147CHAPTER 7Using SIM 3Figure 7.23. Same Frequency Response trace as in Figure 7.22., with Coherence trace set to 1/3 and Full window settings, using

148CHAPTER 7 Using SIM 3(often the microphone in the room) is poorly related to the source signal. Low coherence in a Processor measurement would typi

149CHAPTER 7Using SIM 3TIP: Right-click on the Frequency Response measurement screen and check View as Signal to Noise Ratio in the dialog, or go to V

150CHAPTER 7 Using SIM 3 NOTE: The “Acquiring Data” and “Data < Threshold” status box only applies to the traces that are currently display

151CHAPTER 7Using SIM 3Figure 7.27. Frequency Response trace showing comb filtering7.6. MOVING BETWEEN MEASUREMENTS7.6.1. OverviewSIM 3 allows the u

152CHAPTER 7 Using SIM 37.6.3.1. SetupThe functions of the console, and its drive levels can be assessed. Signal paths can be confirmed. Measurement mi

153CHAPTER 7Using SIM 3By taking and comparing measurement at each of three points within multiple branches of the total sound reinforcement system, t

10CHAPTER 1 SIM 3 Measurement Terminology

154CHAPTER 7 Using SIM 3Begin with the Room or Result view in Frequency Response, and either store the Live Branch trace or click Pause to make compar

155CHAPTER 7Using SIM 3 NOTE: Any offsets that have been made to a Live Branch trace are stored when that DataGroup is stored. When it is rec

156CHAPTER 7 Using SIM 3 CAUTION: Offsets should be used cautiously. The offset values only affect the displayed trace. Always keep track of the offse

157CHAPTER 7Using SIM 3Figure 7.32. Frequency Response trace shown with no smoothing, and with 1/6 and 1/3 octave smoothing.TIP: When comparing store

158CHAPTER 7 Using SIM 37.8. EQUALIZATION AND TUNING THE SYSTEM7.8.1. EQ OverviewAnalyzing the sound system with SIM 3 provides accurate information t

159CHAPTER 7Using SIM 3Figure 7.33. The Group view in Frequency Response, with non-inverted processor trace7.8.3. Inverse EQ & Overlaying an EQ T

160CHAPTER 7 Using SIM 3Figure 7.34. Using Processor Inverted to match and equalize the Room trace7.8.4. Viewing Results of EqualizationAs the above

161CHAPTER 7Using SIM 37.9. SAVING, EXPORTING, RELOADING MEASUREMENTS7.9.1. OverviewSaving SIM 3 measurements allows them to be used at a later time.

162CHAPTER 7 Using SIM 3TIP: Only one directory can be selected to burn to a CD-R via the SIM-3 analyzer, so choose the highest directory level necess

163CHAPTER 7Using SIM 3 NOTE: To perform the best measurement, each of these levels should be brought up to a sufficient level, but not allowed

11CHAPTER 2The SIM 3 HardwareCHAPTER 2: THE SIM 3 HARDWARE The SIM 3 audio analyzer system is truly multi-channel, so that time can be spent measuring

164CHAPTER 7 Using SIM 3Figure 7.35. Meter tab with Console, Processor, and Mic in the green zone7.10.4. Setting dBV rms and Peak A dropdown list on

165CHAPTER 7Using SIM 37.10.5. Setting Meter RangesA mentioned above, the [+] and [–] buttons under each meter are used to set the ranges of the meter

166CHAPTER 7 Using SIM 37.11. MEASURING THDSIM 3 measures THD by looking at the level at the cursor, then searching for its first 9 harmonics (includin

167CHAPTER 7Using SIM 3 NOTE: To select frequencies for the high-precision THD measurement, first set the generator to Sine and enable High-Pre

168CHAPTER 7 Using SIM 37.12. USING MEASUREMENT MODESThe Mode menu facilitates the measurement steps when aligning a sound system by controlling louds

169CHAPTER 7Using SIM 3To make and store Single System measurements, follow these steps:1. From the Mode menu, select the Single System mode. The spe

170CHAPTER 7 Using SIM 37.12.3 Lobe StudyThe Lobe Study mode is used is to view the interaction from other loudspeaker systems into the coverage area

171CHAPTER 7Using SIM 37.12.5. ShowSIM 3 is designed to measure sound systems with an audience present, so certain functions that could disrupt a perf

172CHAPTER 7 Using SIM 37.12.6. Mic EQSIM 3 provides an elegant solution for measuring and correcting the response of a microphone in its actual envir

173CHAPTER 7Using SIM 37.12.8. Mic CompareWith the Mic Compare measurement, two microphones directly connected to the SIM-3022 audio analyzer (or conn

12CHAPTER 2 The SIM 3 Hardware2.1.1.1. Power/Standby SwitchThe power/standby switch, located in the lower right corner of the SIM-3022 analyzer, is us

174CHAPTER 7 Using SIM 37.13. PERFORMING PROCEDURESThe Procedures menu in SIM 3 provides step-by-step processes to perform common tasks. Click on a pr

175CHAPTER 7Using SIM 34. In the dialog box, the mic name is shown, along with the measured dBV value and the dBSPL value. Make sure the dBSPL value

176CHAPTER 7 Using SIM 37.13.2. Check NoiseThe following procedure is used to check the noise floor. This is the step-by-step procedure as presented in

177CHAPTER 7Using SIM 37.13.4.1. Verify Polarity — Processor1. Select the Delay Finder measurement. Select the Processor view. Select Settings > D

178CHAPTER 7 Using SIM 37.13.5.1. Verify Coverage — Single Mic1. Select the Frequency Response measurement. Select the Result view. Go to the bottom

179CHAPTER 7Using SIM 3 NOTE: The difference in level between the reference trace and the measured trace is: Coverage value = (Off-Axis Offset

180CHAPTER 7 Using SIM 33. Select Mode > Single System. Setting the Single System mode mutes the reference speaker and unmutes the live branch spe

181CHAPTER 7Using SIM 33. Make sure that an audio signal is available and coming through the system — either program material or noise. This is the s

182CHAPTER 7 Using SIM 37.13.8.1. Set System Equalization — Processor — Live 1. Select the Frequency Response measurement. Select the Group view. Go

183CHAPTER 7Using SIM 37.13.8.3. Set System Equalization — Speaker-Room — Live1. Select the Frequency Response measurement. Select the Room view. Go

13CHAPTER 2The SIM 3 Hardware CAUTION: The SIM-3022 analyzer is a dedicated hardware system; do not connect devices other than a mouse and keyboard, r

184CHAPTER 7 Using SIM 3

185CHAPTER 8SIM 3 MenusCHAPTER 8: SIM 3 MENUS8.1. FILEThe file menu is where all file-related actions occur. The following section will describe the men

186CHAPTER 8 SIM 3 Menus8.1.3. SaveTo perform an ongoing save during a SIM 3 session, select File > Save. All new data will be saved to the existin

187CHAPTER 8SIM 3 Menus8.1.6. Import SettingsSelecting this feature will allow the user to select a previously saved SIM 3 file, and bring all of its s

188CHAPTER 8 SIM 3 Menus8.1.11. Eject CDSelecting this item will eject the CD from the drive in the analyzer.8.2. VIEWThe View menu provides access to

189CHAPTER 8SIM 3 Menus8.2.2. Cursor Peak TrackSelecting this item will automate the cursor so that it continually goes to the location of the peak am

190CHAPTER 8 SIM 3 Menus8.2.4.3. Result Selecting this item selects the Result graph window view in the Delay Finder and Frequency Response measuremen

191CHAPTER 8SIM 3 MenusFigure 8.4. Band Spectrum measurement with Max and Max Hold8.2.7. Band Spectrum SolidThis item will change the view of the 1/3

192CHAPTER 8 SIM 3 Menus8.2.10. Processor InvertedSelecting this item inverts the processor trace, so that a cut appears as a boost, and vice versa. T

193CHAPTER 8SIM 3 Menus8.2.12. Show Coherence as SNSelecting this item changes the coherence trace in the Frequency Response measurements to S/N (sign

ii© 2005 Meyer Sound Laboratories SIM® 3 Audio Analyzer System User Guide (software v1.6.42)The contents of this manual are furnished for information

14CHAPTER 2 The SIM 3 HardwareObserve the following status LEDs when using the generator: ON/OFF LED – Located above the front panel XLR connector,

194CHAPTER 8 SIM 3 Menus8.3. BRANCHFigure 8.9. Branch menu dropdown, showing generic branch names8.3.1. Edit BranchesSelecting this item opens the Br

195CHAPTER 8SIM 3 Menus8.3.3. Next BranchSelecting this item chooses the next branch to the current Live branch, signals the switchers to make the pro

196CHAPTER 8 SIM 3 Menus8.4.2. Front PanelSelecting this item opens the Front Panel dialog box, permitting the naming and selection of other parameter

197CHAPTER 8SIM 3 Menus8.4.6. Delay Finder SettingsSelecting this item will open a dialog box with settings specific to the Delay Finder measurement. C

198CHAPTER 8 SIM 3 MenusThese settings can also be adjusted using the [+] and [–] buttons in each of the three meters. The ranges for each of the inpu

199CHAPTER 8SIM 3 Menus8.4.9. Mouse SettingsThe Mouse Settings dialog box allows adjustment to be made to the mouse cursor. The two value ranges are

200CHAPTER 8 SIM 3 Menus8.5.3. Lobe StudyThis mode mutes the loudspeaker system connected to the Live Branch and allows you to un-mute other systems.8

201CHAPTER 8SIM 3 Menus8.6. PROCEDURE The Procedures are step-by-step methods to perform certain measurements using SIM 3. The dialog box will remain

202CHAPTER 8 SIM 3 Menus8.6.5. Verify CoverageThis procedure is used to verify the horizontal and vertical coverage angles of the loudspeaker systems.

203CHAPTER 8SIM 3 MenusFigure 8.14. The Data menu dropdown8.7.2. Store DataGroupSelecting this item when performing a measurement using the Live Bran

15CHAPTER 2The SIM 3 Hardware Sine Wave — This test signal is used for gain structure testing and distortion analysis in Line Spectrum measurements

204CHAPTER 8 SIM 3 Menuslower right corner of the graph view window may also be used; it works as a toggle to un-pause. Pressing the Space bar will al

205CHAPTER 8SIM 3 Menus8.8. GENERATOR8.8.1. Pink Noise (Nz)Clicking on Noise opens a dialog box with three level settings, -20 dB (the default), 0 dB,

206CHAPTER 8 SIM 3 Menus8.9.1. Band SpectrumSelecting this item opens the Band Spectrum measurement. The measurement may also be selected from the tab

207CHAPTER 8SIM 3 Menus8.10. HELP Figure 8.17. The Help menu dropdown8.10.1. About SIM 3Selecting this item will provide information about the softwa

208CHAPTER 8 SIM 3 Menus

209APPENDIX ASIM 3 SpecificationsAPPENDIX A: SPECIFICATIONSSIM-3022 AUDIO ANALYZER Front PanelFront-Panel Audio Connectors Generator Output One (1)

210APPENDIX A SIM 3 SpecificationsSIM-3088 LINE SWITCHERFront PanelLED Indicators Sixteen (16) on/mute; sixteen (16) bus-select; Two (2) each console/

211APPENDIX BSIM 3 Components and AccessoriesAPPENDIX B: SIM 3 COMPONENTS AND ACCESSORIES NOTE: For detailed and updated information on access

212APPENDIX B SIM 3 Components and AccessoriesMonitor, 17-Inch LCD Flat ScreenOptimized for use with SIM 3, folds flat for travelLighted Keyboard with

213APPENDIX BSIM 3 Components and AccessoriesSIM 3 Rack3-RU rack with recessed front and rear rack rails; fits SIM-3022 analyzer plus a SIM-3088 line-l

16CHAPTER 2 The SIM 3 HardwareThere are four meter LEDs above each XLR input, representing the following status information from left to right: Gree

214APPENDIX B SIM 3 Components and Accessories

215APPENDIX CExtended Table of ContentsAPPENDIX C: EXTENDED TABLE OF CONTENTSCHAPTER 1: SIM 3 Measurement Terminology ...

216APPENDIX C Extended Table of Contents2.3.1.1. Address Switch ...

217APPENDIX CExtended Table of Contents4.3. New Version Updating Procedure ...

218APPENDIX C Extended Table of Contents5.4.1. Overview ...

219APPENDIX CExtended Table of ContentsCHAPTER 7: Using SIM 3 ...1177.1. S

220APPENDIX C Extended Table of Contents7.4.9. Deleting Measurements ...

221APPENDIX CExtended Table of Contents7.9.6. Opening Saved Measurements ...1627

222APPENDIX C Extended Table of Contents7.13.8.1. Set System Equalization — Processor — Live ... 1827.13.8.2. Set

223APPENDIX CExtended Table of Contents8.2.14. Trace Offsets ...

17CHAPTER 2The SIM 3 Hardware2.1.1.6. Mic Inputs 1 and 248v 48vMIC12PUSHPUSH

224APPENDIX C Extended Table of Contents8.7.4. Clear ...

© 2005Meyer Sound Laboratories Inc.05.136.060.12 AMeyer Sound Laboratories Inc.2832 San Pablo AvenueBerkeley, CA 94702www.meyersound.comT: +1 510 486.

18CHAPTER 2 The SIM 3 HardwareIn order to make transfer function measurements between any of these points, the reference and measurement points need t

19CHAPTER 2The SIM 3 Hardware2.1.1.7. Headphone OutputThe headphone output is used for monitoring any of the sources connected to the front panel or s

20CHAPTER 2 The SIM 3 HardwareFigure 2.2. Measuring an audio device using the front-panel connectionsSIM-3022 Audio Analyzer®LINE1SOURCEfrequencyleve

21CHAPTER 2The SIM 3 HardwareSIM-3022 Audio Analyzer®LINE1SOURCEfrequencylevelCALlevel48v 48v2MIC12CDRPUSHPUSHPUSHPUSHDevice Under TestCHANNEL 1CHANNE

22CHAPTER 2 The SIM 3 Hardware2.1.2. Rear PanelSOURC EConne ct to 3081 onlyConne ct to 3088 onlySe rial No.Made in USA with domesticand foreign p

23CHAPTER 2The SIM 3 HardwareAll amplifier modules and directly associated audio equipment (mixing consoles, processors, etc.) must be connected to the

iiiSYMBOLS USEDThese symbols indicate important safety or operating features on the chassis:Dangerous voltages: risk of electric shockImportant operat

24CHAPTER 2 The SIM 3 Hardware2.1.2.5. Bus ConnectorsSOURCEConnect t o 3081 onlyConnect t o 3088 onlySe rial No.Made in USA with domesticand foreign

25CHAPTER 2The SIM 3 HardwareFigure 2.5. SIM-3022 analyzer connections to line and mic switchersConnect to3022 o r 3081 onlyConnect to3022 o r 3081 o

26CHAPTER 2 The SIM 3 Hardware2.2. SIM-3088 LINE SWITCHERWhen larger systems or more sophisticated needs are involved, the SIM-3088 line switcher is t

27CHAPTER 2The SIM 3 Hardware NOTE: Addressing for line switchers and microphone switchers are handled separately, hence the address for any l

28CHAPTER 2 The SIM 3 Hardware2.2.2. LED Indicators2.2.2.1. Console/ProcessorThese indicators show the configuration made in the software (from the Bra

29CHAPTER 2The SIM 3 Hardware NOTE: The signal level of the selected channels can be monitored in the SIM-3022 analyzer. The front-panel Line

30CHAPTER 2 The SIM 3 HardwareAs shown in Figure 2.2, this configuration will light the console LED for channels 1-4 and the console LED for channels 5

31CHAPTER 2The SIM 3 HardwareThe mute/ON LEDs for channels 9-16 will be lit either green or red, since channels 9-16 are always used as processor and

32CHAPTER 2 The SIM 3 Hardware2.2.4. Rear PanelSe rial No.Made in USA with domesticand foreign partsConne ct to3022 or 30 88 on ly Return from SIM 3

33CHAPTER 2The SIM 3 HardwareSe rial N o.Made in USAwith domesticand foreign pa rtsConnect to3022 or 3088 onlyReturn from SIM 30229-16Send to SIM 3022

iv1. Read these instructions.2. Keep these instructions.3. Heed all warnings.4. Follow all instructions.5. Do not use this apparatus near water.6

34CHAPTER 2 The SIM 3 Hardware2.2.4.3. 8+8 Configuration Audio ConnectionsWhen the switcher is configured in an 8+8 configuration, Send channels 1–8 (red

35CHAPTER 2The SIM 3 Hardware2.2.4.4. 4+12 Configuration Audio ConnectionsWhen the switcher is configured in a 4+12 configuration, Send channels 1–4 (red

36CHAPTER 2 The SIM 3 Hardware2.2.4.5. 0+16 Configuration Audio ConnectionsWhen the switcher is configured in a 0+16 configuration, signal from a source

37CHAPTER 2The SIM 3 Hardware2.3. SIM-3081 MICROPHONE SWITCHER The SIM-3081 single, half-rack, 8-input mic-level switcher enables measurements in seve

38CHAPTER 2 The SIM 3 HardwareThe address can be changed using a small screwdriver or a pen.Addr+48vBus PwrData0

39CHAPTER 2The SIM 3 Hardware2.3.1.4. StatusIn addition, the front panel of the mic switcher includes three status indicators: 48 V — Indicates the

40CHAPTER 2 The SIM 3 HardwareMicrophone switchers are remotely powered from the SIM-3022 analyzer. The total number of switchers (line and microphone

41CHAPTER 2The SIM 3 Hardware2.3.3. SIM-3081 Microphone Switcher Audio ConnectionsThe SIM-3081 microphone switcher provides 8 mic-level inputs for mea

42CHAPTER 2 The SIM 3 Hardware2.4.1. Front PanelThe front panel features the following switches and LEDs: Power± 15 VSIM 3 Remote Power Supply(1) (2)

43CHAPTER 2The SIM 3 Hardware2.4.3. Power and Signal Flow through the Power Supply ConnectorsAudio signals from switchers and control signals from the

vCONTENTSIntroduction to this Manual ...1CHAPTER 1: S

44CHAPTER 2 The SIM 3 Hardware2.4.4. Connecting the SIM-3004 Remote Power Supply to Line SwitchersTypically, SIM-3088 line-level switchers are powered

45CHAPTER 2The SIM 3 HardwareSe rial N o.Made in USAwith domesticand foreign pa rtsConne ct t o3022 or 30 88 o nlyReturn from SIM 30229-16Send to SIM

46CHAPTER 2 The SIM 3 Hardware2.4.5. Connecting the SIM-3004 Remote Power Supply to Mic SwitchersTo connect additional SIM-3081 mic switchers to a sys

47CHAPTER 2The SIM 3 HardwareSe rial N o.Made in USAwith domesticand foreign pa rtsConne ct t o3022 or 30 88 o nlyReturn from SIM 30229-16Send to SIM

48CHAPTER 2 The SIM 3 Hardware2.4.6. Using Multiple SIM-3004 Remote Power Supplies in a SystemLarger SIM 3 measurement systems may require the use of

49CHAPTER 2The SIM 3 HardwareSe rial N o.Made in USAwith domesticand foreign pa rtsConne ct t o3022 or 30 88 o nlyReturn from SIM 30229-16Send to SIM

50CHAPTER 2 The SIM 3 Hardware

51CHAPTER 3SIM 3 Configurations and BranchesCHAPTER 3: SIM 3 CONFIGURATIONS AND BRANCHES3.1. SETTING UP BRANCHES3.1.1. OverviewWithin SIM 3, the setup

52CHAPTER 3 SIM 3 Configurations and BranchesInputSignalProcessorLoudspeaker In Roomwith MeasurementMicrophoneSpeaker + RoomLineInput 2ProcessorResult

53CHAPTER 3SIM 3 Configurations and Branches3.1.4. Selecting and Naming Switchers: Console, Processor, MicOnce the physical setup of the measurement p

viCHAPTER 7: Using SIM 3 ...1177.1. Starting a Project

54CHAPTER 3 SIM 3 Configurations and Branches NOTE: Make sure you have set the desired address on the address switch of the SIM-3088 Line Swi

55CHAPTER 3SIM 3 Configurations and BranchesIn addition, the Processor channels have a Location and Model field. It is suggested these fields are filled

56CHAPTER 3 SIM 3 Configurations and Branches NOTE: Please make sure the sensitivity in mV/Pa for each microphone is entered on the correspon

57CHAPTER 3SIM 3 Configurations and BranchesGo to Settings > Front Panel to open the front panel dialog.The Line section is divided into two column

58CHAPTER 3 SIM 3 Configurations and Branchesenter the new text. A faster triple-click (or a slower double click) will highlight the existing text, an

59CHAPTER 3SIM 3 Configurations and Branches3.1.6.1. AddressThe Address (Ad) of a branch tells SIM 3 which device is used to find the input signals wit

60CHAPTER 3 SIM 3 Configurations and BranchesFigure 3.7. Selecting switcher addresses in the Branches tabThe contents of the Channel (Ch) dropdo

61CHAPTER 3SIM 3 Configurations and BranchesFigure 3.8. Front-Panel channels dropdown menu for Console in Branches tab. NOTE: See Section 6.1

62CHAPTER 3 SIM 3 Configurations and Branches Microphone Channels: Two (2) microphone inputs, Mic 1 and Mic 2.Figure 3.10. Front-Panel channels drop

63CHAPTER 3SIM 3 Configurations and BranchesMic Switcher ChannelsIf a numeric address (0-9) is selected in the Address (Ad) dropdown box for Microphon

1INTRODUCTIONIntroduction to this ManualINTRODUCTION TO THIS MANUALThis manual is the primary user guide for setting up and using the SIM 3 audio anal

64CHAPTER 3 SIM 3 Configurations and Branches NOTE: When defining a new Branch, make sure you use valid measurement points and that a physical

65CHAPTER 3SIM 3 Configurations and Branches3.1.9. Live BranchThe SIM 3 analyzer can only take measurements from one Branch at a time. This Branch is

66CHAPTER 3 SIM 3 Configurations and Branches3.1.10. Changing the Live BranchThe Live Branch can be selected for measurement in a variety of ways. Fro

67CHAPTER 3SIM 3 Configurations and Branches3.1.11. Saving/Storing Branch MeasurementsClicking the Store button in the Live Branch row will open up th

68CHAPTER 3 SIM 3 Configurations and BranchesFigure 3.16. Memory locations in Selector tab, primary and secondary dropdownsClicking on any of the Mem

69CHAPTER 4Software UpdatingCHAPTER 4: SOFTWARE UPDATING 4.1. NORMAL SYSTEM BOOTUPThe normal bootup of the SIM-3022 analyzer is as follows:1. Make su

70CHAPTER 4 Software Updating4.3. NEW VERSION UPDATING PROCEDUREFrom time to time, updates of the SIM 3 software will be made available, offering new

71CHAPTER 4Software Updating NOTE: If Option 2 (Reformat Disk) is selected, a confirm-or-abort menu will be displayed to prevent the accidental

72CHAPTER 4 Software Updating4.4.1. Setup and DataViewer Installation ProcedureThe Setup and Data Viewer is supplied via download from the Meyer Sound

73CHAPTER 4Software Updating4. Select an installation destination by clicking the Browse button (the Desktop, My Document, or C:/ are suggested dest

2INTRODUCTION Introduction to this Manualstore, and compare measurements. It starts with naming and saving files, and ends with using modes and procedu

74CHAPTER 4 Software Updating4.4.2.1. Starting a New ProjectTo begin a new project, perform the following steps: 1. Choose File > New. A dialog

75CHAPTER 4Software Updating4. Click OK to exit the Project Properties dialog.TIP: It’s a good idea to save your new project immediately after creatio

76CHAPTER 4 Software Updating4.4.2.3. Saving a Project To save a project, perform the following steps:1. Choose File > Save to bring up the Save

77CHAPTER 4Software Updating4.4.2.4. Recording Project Files to a CDTo use project files that you’ve set up in the Setup and Data Viewer on the SIM 3 a

78CHAPTER 4 Software Updating2. Make sure that Open Writable CD Folder Using Windows Explorer is highlighted (it should be by default) and click OK.

79CHAPTER 4Software UpdatingFigure 4.4. Copy the files in normal Windows fashion.CAUTION: There are two files for any project — each with the same name

80CHAPTER 4 Software UpdatingFigure 4.5. Project files are ready to be burned.5. On the top-left side of the Writable CD folder, click Write these fi

81CHAPTER 4Software UpdatingData remains in memory as long as the Setup and Data Viewer is running. From the Data menu, the primary data functions are

82CHAPTER 4 Software Updating NOTE: You can also use the tabbed Selector window (located at the lower left side of the SIM 3 interface) to lau

83CHAPTER 4Software Updating4.4.3.3. Exporting the Current ScreenTo export any SIM 3 screen you’re currently viewing to a third-party application (Mic

3CHAPTER 1SIM 3 Measurement TerminologyCHAPTER 1: SIM 3 MEASUREMENT TERMINOLOGYA number of different terms are used within SIM 3, either to describe c

84CHAPTER 4 Software Updating

85CHAPTER 5The MeasurementsCHAPTER 5: THE MEASUREMENTS — DEFINITIONS AND APPLICATIONSIM 3 performs four basic types of measurements: Band Spectrum

86CHAPTER 5 The Measurementspoint. The user can view each individual trace (Console, Processor, Mic) in the measure-ment window — or all three simulta

87CHAPTER 5The MeasurementsFigure 5.2. Band Spectrum measurement, All view5.2. LINE SPECTRUM5.2.1. OverviewLine Spectrum measurements display the sing

88CHAPTER 5 The MeasurementsYou can view each individual trace (Console, Processor, Mic) in the measurement window — or all three simultaneously (All)

89CHAPTER 5The Measurements5.2.6. AllTo view the console, processor and microphone traces simultaneously in three separate graphs, click the All butto

90CHAPTER 5 The Measurements5.3.2. Description of the MeasurementSIM 3 utilizes an advanced implementation of the IFT that prevents the “phantom echoe

91CHAPTER 5The MeasurementsFigure 5.5. Delay Finder measurement with +/-70 ms time window, Room view5.3.3. RoomClick the Room button or select View &

92CHAPTER 5 The MeasurementsFigure 5.6. Delay Finder, same measurement zoomed to +/-7 ms NOTE: A Delay Finder trace goes upward indicating no

93CHAPTER 5The MeasurementsFigure 5.8. Delay Finder trace of two sources at approximately 2:1 ratio5.4. FREQUENCY RESPONSE5.4.1. OverviewFrequency Res