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EAW Smaart 6 Operation Manual Getting Started

1.3 Smaart 6 Signal I/O

This section discusses how to recognize your hardware and adjust signal levels.

1. Make sure your computer recognizes your sound card.

2. Connect any external audio devices.

3. Start Smaart 6.

Do not disconnect an external audio device while Smaart 6 is running.

4. Select the proper audio input and output device(s) and channel(s) by choosing

Options->Audio I/O.

The Options dialog appears with the Audio I/O tab selected (Figure 1-1).

Figure 1-1 Audio I/O tab of the Options dialog

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 113 114

USER GUIDE 1
Table of Contents 3
List of Figures 7
Chapter 1: Getting Started 9
1.1.2 Measurement Microphone 11
1.1.3 Microphone Preamplifier 11
1.2.1 First Time Installation 12
1.3 Smaart 6 Signal I/O 14
1.4.1 The Menu Bar 17
1.4.2 The Plot Area 17
1.4.3 Cursor Readout 17
1.4.4 Start/Stop Buttons 17
1.4.6 Display Controls 18
1.4.8 Signal Generator 19
1.4.9 Internal Delay Control 20
1.5 How to use this Manual 21
2.1 Concepts 23
2.1.2 Fast Fourier Transform 24
2.1.3 Averaging 25
2.1.4 Sampling Rate 25
2.1.5 Frequency Resolution 26
2.1.6 Pink and White Noise 27
2.1.7 Data Window Functions 28
2.1.8 Impulse Response 29
2.1.9 The Transfer Function 29
2.1.10 Coherence 30
2.1.11 Signal Alignment 30
2.2 Glossary of Terms 31
2.3 Selected Bibliography 34
3.1 Spectrum Measurements 38
3.1.2 Spectrograph 40
3.2.3 The Magnitude Display 45
3.2.4 The Phase Display 46
3.2.5 Time Windowing 46
3.2.6 Averaging and Smoothing 47
3.2.8 Magnitude Thresholding 51
3.3.3 Automatic Delay Locator 55
3.4 SPL Measurements 56
3.4.2 Calibrating to SPL 57
Figure 3-14 Legend dialog 61
3.6 Internal Delay 63
3.7 Internal Signal Generator 63
3.8 Weighting Curves 65
3.9 External Device Control 66
3.10 The Locked Cursor 68
3.11 Smaart 6 Screen Capture 69
Chapter 4: Applications 71
Measurement Signal 75
Reference Signal 75
Computer 75
Line Out 75
Equalizer 75
4.3 Measuring a Loudspeaker 77
4.3.1 Adjust Signal Levels 78
Step 1: Evaluation Listening 85
Step 4: Compare Positions 86
Step 6: Critical listening 86
Step 7: Stability Testing 87
Chapter 5: Smaart 6 Commands 91
5.3 Options Menu 93
5.3.2 Frequency Response 95
5.3.3 IR Analysis 97
5.3.4 Audio I/O 98
5.3.5 Delay 99
5.3.6 Zoom 101
5.3.7 Instantaneous 101
5.4 Help Menu 102
5.5 Keyboard Shortcuts 103
External Device Control 104
Options Menu Shortcuts 104
Chapter 6: Troubleshooting 105
6.3 Sound Hardware Problems 107
6.4 Performance Issues 108
6.5 Font and Display Problems 108
EAW Smaart 6 Operation Manual 111

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