CLIOwin 7 PCI User's Manual - Audiomatica

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13.7 THIELE & SMALL PARAMETERS 13.7.1 INTRODUCTION CLIO handles Thiele and Small Parameters, hereafter referred to as T&S, as a post process of impedance measurements. Three options are available for source data, selected by the Data Origin Drop Down Control: Sinusoidal Impedance Data, MLS Impedance Data, File Data, the last created with either of the previous. There are no conceptual differences between File and the first two options, beside where the data resides. Choosing Sinusoidal or MLS, the user should have one of these measurements in memory while the File Data option will prompt for file selection. Impedance measurements are therefore the central topic and the previous paragraphs are an essential background. To get the full set of T&S, two impedance curves are needed. The first is the loudspeaker’s free air impedance, the second, the impedance obtained either with Delta Mass or Delta Compliance method. The first consists in adding a suitable Known Mass to the Loudspeaker cone, the latter in loading the cone with a box of Known Volume. 13.7.2 T&S PARAMETERS CONTROL PANEL The User Interface is quite simple with three Buttons, one Drop Down and one Check Box. Starts a T&S Parameters procedure. See 13.7.3 for details. Delta Mass T&S Parameters calculation. See 13.7.3 for details. Delta Compliance T&S Parameters calculation. See 13.7.3 for details. The Drop Down allows selecting the data origin as described in the introduction. The LSE Check Box, when checked, enables a Least Square Error routine while calculating T&S Parameters; more on this later. Besides information regarding the device tested, the Control Panel displays 27 parameters. Here is what they are. 168 Chapter 13 - Measuring impedance and T&S parameters
13.7.3 GLOSSARY OF SYMBOLS F S V AS R E Q MS Q ES Q TS B·l dB SPL S D C MS M MS R MS C AS M AS R AS C MES L CES R ES R AT Resonant frequency of driver including air load Volume of air having the same acoustic compliance as driver suspension DC electrical resistance of voice coil Q of driver at Fs considering mechanical losses only Q of driver at Fs considering electrical resistance only Q of driver at Fs considering all driver losses Motor strength, product of B times l Acoustic pressure produced by the driver at 1m when driven driven by 2.83 V Effective surface area of the driver cone Mechanical compliance of driver suspension Mechanical mass of driver cone assembly including air load Mechanical resistance of driver suspension losses Acoustic compliance of driver suspension Acoustic mass of driver cone assembly including reactive air load Acoustic resistance of driver suspension losses Electrical capacitance representing the driver total moving mass Electrical inductance representing the driver mechanical compliance Electrical resistance representing the driver mechanical losses Total acoustic resistance of driver R MT Total mechanical resistance of driver (suspension losses + electrical reflected) M MD Z MIN Z MAX Z AVG η 0 Mechanical mass of driver cone assembly excluding air load Minimum impedance in the frequency range above Fs Impedance at Fs Average of impedance modulus over the measured frequency limits Efficiency Chapter 13 - Measuring impedance and T&S parameters 169
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ELECTRICAL & ACOUSTICAL TESTS User'
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CONTENTS 1 INTRODUCTION ...........
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7.10 SIGNAL FILES .................
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14.1 INTRODUCTION .................
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AUDIOMATICA’S WARRANTY Audiomatic
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12 Chapter 1 - Introduction
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2.1 THE PB-4281 PC BOARD AND SC-01
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2.2.3 THE MIC-01 (OR MIC-02) FREQUE
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2.4 THE QCBOX MODEL 4 AMPLIFIER & S
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2) 2 x Stereo mini jack to two RCA
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3.3 HARDWARE REGISTRATION WITH WIND
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3.3.2 HARDWARE REGISTRATION UNDER W
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3.3.3 HARDWARE REGISTRATION UNDER W
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Figure 3.21 Let's now verify that t
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3.4 SOFTWARE INSTALLATION This para
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3.6 RUNNING CLIOWIN FOR THE FIRST T
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3.7.1 CALIBRATION VALIDATION Figure
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3.9 TROUBLESHOOTING CLIO INSTALLATI
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4.3 CLIOWIN DESKTOP The CLIOwin des
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4.5 HARDWARE CONTROLS TOOLBAR 4.5.1
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4.5.4 MICROPHONE CONTROL Switches C
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4.6.2 CONTROLLING A TURNTABLE Fig.4
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4.7.2 ANALYSIS MENU The Analysis me
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Fig. 4.16 Sinusoidal Submenu Fig. 4
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4.7.3 CONTROLS MENU The Controls Me
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4.8 BASIC CONNECTIONS In order to c
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4.8.3 CONNECTING THE CLIOQC AMPLIFI
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T&S parameters data files. Wow&Flut
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Invokes the Autosave Settings dialo
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5.3.4 PRINTING Enters the Notes dia
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customize up to 6 different color s
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5.7.1 SAVING MEASUREMENT SETTINGS M
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6.3 BUTTONS AND CHECKBOXES Moves (s
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6.6 THE MLS TIME DOMAIN DISPLAY Whe
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The following figure shows a 1031.2
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7.4 MULTITONES It is possible to ge
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7.6 MLS It is possible to generate
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7.8 The following figure shows a 20
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The following figure shows the same
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For comparison with Pink noises the
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The following figure shows a msampl
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84 Chapter 7 - Signal Generator
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8.2.1 TOOLBAR BUTTONS Starts the me
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This is substantially the measureme
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With the Multi-meter running, fit t
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8.6 INTERACTION BETWEEN THE MULTI-M
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9.2.1 TOOLBAR BUTTONS, DROP DOWN LI
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9.4 FFT SETTINGS DIALOG Fig. 9.2 Th
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A better approach is to center the
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it is necessary to remove the fligh
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80.0 CLIO dBSPL 70.0 60.0 50.0 40.0
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9.10 “LIVE” TRANSFER FUNCTION A
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Another factor of maximum importanc
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The last obstacle you may find whil
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10.2.1 TOOLBAR BUTTONS Starts an ML
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Amplifier & SwitchBox Model 2,3 and
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10.4 MEASURING FREQUENCY RESPONSE I
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150.0 CLIO 180.0 150.0 CLIO 180.0 O
Page 118 and 119: speaker we are testing is a gloriou
Page 120 and 121: 10.4.4 PHASE & GROUP DELAY We used
Page 122 and 123: etween true phase, as in Fig.10.22,
Page 124 and 125: 10.5 OTHER TIME DOMAIN INFORMATION
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Page 128 and 129: 10.7 MLS Vs. LOG CHIRP As anticipat
Page 130 and 131: 10.8 RELATED MENUS The dual domain
Page 132 and 133: Display fifth harmonic distortion,
Page 134 and 135: Gating (Acquisition) Settings Gated
Page 136 and 137: 11.3 A BRIEF DESCRIPTION ON SETTING
Page 138 and 139: 11.3.3 GATING Enabling Gating allow
Page 140 and 141: 11.4 DISTORTION AND SETTINGS Sinuso
Page 142 and 143: Finally Fig.11.12 shows the distort
Page 144 and 145: 12.2 WATERFALL AND DIRECTIVITY CONT
Page 146 and 147: 12.3.2 WATERFALL OPERATION As alrea
Page 148 and 149: Figure 12.5 One powerful way to ins
Page 150 and 151: 12.5 DIRECTIVITY SPECIFIC CONTROLS
Page 152 and 153: 12.6 MEASURING AND REPRESENTING LOU
Page 154 and 155: 12.6.4 REPRESENTING POLAR DATA To r
Page 156 and 157: 156 Chapter 12 - Waterfall and Dire
Page 158 and 159: If you are a novice in using CLIO,
Page 160 and 161: life harder even if more interestin
Page 162 and 163: 13.4 I SENSE This requires Audiomat
Page 164 and 165: 0.0 CLIO 180.0 dBV Deg -10.0 108.0
Page 166 and 167: CLIO INPUT A INPUT B OUTPUT A OUTPU
Page 170 and 171: L 1kHz L 10kHz Inductance at 1kHz I
Page 172 and 173: We can now save our complete result
Page 174 and 175: The graphs refers to a linearity me
Page 176 and 177: DIN measures Intermodulation distor
Page 178 and 179: 15.2.1 TOOLBAR BUTTONS AND DROP DOW
Page 180 and 181: 15.3 ACOUSTICAL PARAMETERS SETTINGS
Page 182 and 183: RTU [s]. Reverberation time evaluat
Page 184 and 185: 184 Chapter 15 - Acoustical Paramet
Page 186 and 187: 16.2.1 TOOLBAR BUTTONS AND DROP DOW
Page 188 and 189: 16.3 Leq SETTINGS Time resolution S
Page 190 and 191: 17.3 FEATURES Figure 17.2 Aside a s
Page 192 and 193: 192 Chapter 17 - Wow & Flutter
Page 194 and 195: [20] D. Clarke, “Precision Measur
Page 196: 196 Norms
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