CLIOwin 7 PCI User's Manual - Audiomatica

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A better approach is to center the sinusoid to the nearest spectral line i.e. 999.75Hz as shown in the next figure. Note the use of the multimeter as frequency counter; note also that its precision is of 0.1Hz when FFT size is higher than 32k. If you want to generate a full spectrum signal choose an All-tone of proper length matching FFT size. The following figure shows a 16k All-tone (all16384.sig) analyzed with a 16k FFT. 98 Chapter 9 - FFT
If you had chosen a wrong size, like an all tone of 8k, you would have obtained the following analysis which clearly shows a lack of energy at alternating bins; the effect is visible only at low frequency due to the logarithmic nature of the graph. <strong>CLIOwin</strong> has the possibility of internal trigger (and relative delay) i.e. triggering with respect of the generated signal thus obtaining a synchronous capture. As an example let's see how a measurement presented in section 11.4 was done; please refer to figures 11.9, 11.10 and 11.11. We have an acoustical measurement of a tweeter, done stimulating it with a 2kHz 10ms tone burst (see 5.4.2 for details about programming a bursted sinusoid); the FFT measurement is done using the internal trigger; Fig. 11.9 shows the analysis and the captured time data that clearly shows the flight time from the tweeter to the microphone, Fig. 11.9, Even if the analysis is not our final target, it shows the power of synchronous acquisition which permits the display of the arrival delay of sound to the microphone. To obtain the desired result, as explained in 11.4, Chapter 9 - FFT 99
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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
Page 48 and 49: Fig. 4.16 Sinusoidal Submenu Fig. 4
Page 50 and 51: 4.7.3 CONTROLS MENU The Controls Me
Page 52 and 53: 4.8 BASIC CONNECTIONS In order to c
Page 54 and 55: 4.8.3 CONNECTING THE CLIOQC AMPLIFI
Page 56 and 57: T&S parameters data files. Wow&Flut
Page 58 and 59: Invokes the Autosave Settings dialo
Page 60 and 61: 5.3.4 PRINTING Enters the Notes dia
Page 62 and 63: customize up to 6 different color s
Page 64 and 65: 5.7.1 SAVING MEASUREMENT SETTINGS M
Page 66 and 67: 6.3 BUTTONS AND CHECKBOXES Moves (s
Page 68 and 69: 6.6 THE MLS TIME DOMAIN DISPLAY Whe
Page 70 and 71: The following figure shows a 1031.2
Page 72 and 73: 7.4 MULTITONES It is possible to ge
Page 74 and 75: 7.6 MLS It is possible to generate
Page 76 and 77: 7.8 The following figure shows a 20
Page 78 and 79: The following figure shows the same
Page 80 and 81: For comparison with Pink noises the
Page 82 and 83: The following figure shows a msampl
Page 84 and 85: 84 Chapter 7 - Signal Generator
Page 86 and 87: 8.2.1 TOOLBAR BUTTONS Starts the me
Page 88 and 89: This is substantially the measureme
Page 90 and 91: With the Multi-meter running, fit t
Page 92 and 93: 8.6 INTERACTION BETWEEN THE MULTI-M
Page 94 and 95: 9.2.1 TOOLBAR BUTTONS, DROP DOWN LI
Page 96 and 97: 9.4 FFT SETTINGS DIALOG Fig. 9.2 Th
Page 100 and 101: it is necessary to remove the fligh
Page 102 and 103: 80.0 CLIO dBSPL 70.0 60.0 50.0 40.0
Page 104 and 105: 9.10 “LIVE” TRANSFER FUNCTION A
Page 106 and 107: Another factor of maximum importanc
Page 108 and 109: The last obstacle you may find whil
Page 110 and 111: 10.2.1 TOOLBAR BUTTONS Starts an ML
Page 112 and 113: Amplifier & SwitchBox Model 2,3 and
Page 114 and 115: 10.4 MEASURING FREQUENCY RESPONSE I
Page 116 and 117: 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
Page 126 and 127: utton. Any process you execute can
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
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Figure 12.5 One powerful way to ins
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12.5 DIRECTIVITY SPECIFIC CONTROLS
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12.6 MEASURING AND REPRESENTING LOU
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12.6.4 REPRESENTING POLAR DATA To r
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156 Chapter 12 - Waterfall and Dire
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If you are a novice in using CLIO,
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life harder even if more interestin
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13.4 I SENSE This requires Audiomat
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0.0 CLIO 180.0 dBV Deg -10.0 108.0
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CLIO INPUT A INPUT B OUTPUT A OUTPU
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13.7 THIELE & SMALL PARAMETERS 13.7
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L 1kHz L 10kHz Inductance at 1kHz I
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We can now save our complete result
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The graphs refers to a linearity me
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DIN measures Intermodulation distor
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15.2.1 TOOLBAR BUTTONS AND DROP DOW
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15.3 ACOUSTICAL PARAMETERS SETTINGS
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RTU [s]. Reverberation time evaluat
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184 Chapter 15 - Acoustical Paramet
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16.2.1 TOOLBAR BUTTONS AND DROP DOW
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16.3 Leq SETTINGS Time resolution S
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17.3 FEATURES Figure 17.2 Aside a s
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192 Chapter 17 - Wow & Flutter
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[20] D. Clarke, “Precision Measur
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196 Norms
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CLIOwin 7 PCI User's Manual - Audiomatica

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