User`s manual
Table Of Contents
- CONTENTS
- 1 INTRODUCTION
- 2 THE CLIO SYSTEM
- 3 CLIO INSTALLATION
- 3.1 MINIMUM PC CONFIGURATION
- 3.2 FW-01 DRIVERS INSTALLATION UNDER WINDOWS XP
- 3.3 FW-01 DRIVERS INSTALLATION UNDER WINDOWS VISTA AND 7
- 3.4 SOFTWARE INSTALLATION
- 3.5 THE 'CLIO BOX'
- 3.6 RUNNING CLIO FOR THE FIRST TIME
- 3.7 SYSTEM CALIBRATION
- 3.8 CLIO SERIAL NUMBER AND DEMO MODE
- 3.9 TROUBLESHOOTING CLIO INSTALLATION
- 4 CLIO BASICS
- 5 SYSTEM OPERATIONS AND SETTINGS
- 6 COMMON MEASUREMENT INTERFACE
- 7 SIGNAL GENERATOR
- 8 MULTI-METER
- 9 FFT, RTA AND “LIVE” TRANSFER FUNCTION
- 10 MLS & LOG CHIRP
- 11 SINUSOIDAL
- 12 WATERFALL , DIRECTIVITY & 3D
- 12.1 INTRODUCTION
- 12.2 WATERFALL, DIRECTIVITY & 3D CONTROL PANEL
- 12.3 WATERFALL SPECIFIC CONTROLS
- 12.4 MAKING A CUMULATIVE SPECTRAL DECAY
- 12.5 DIRECTIVITY SPECIFIC CONTROLS
- 12.6 MEASURING LOUDSPEAKER SINGLE POLAR DATA (1D MODE)
- 12.7 REPRESENTING SINGLE POLAR DATA
- 12.8 3D SPECIFIC CONTROLS
- 12.9 MEASURING LOUDSPEAKER SINGLE POLAR DATA (3D MODE)
- 12.10 MEASURING FULL SPHERE LOUDSPEAKER POLAR DATA (3D MODE)
- 12.11 REPRESENTING 3D BALLOON DATA
- 12.12 EXPORT 3D BALLOON DATA
- 13 MEASURING IMPEDANCE AND T&S PARAMETERS
- 14 LINEARITY & DISTORTION
- 15 ACOUSTICAL PARAMETERS
- 16 Leq LEVEL ANALYSIS
- 17 WOW AND FLUTTER
- 18 WAVELET ANALYSIS
- BIBLIOGRAPHY
- NORMS
16 Leq LEVEL ANALYSIS
16.1 INTRODUCTION
With the Leq Analysis control panel it is possible to execute real-time capture and
level measurement of any kind of signal present at CLIO’s input. The behavior of
the instrument closely resemble that of a graphical level recorder plus direct-to-disk
data capture.
When analyzing an acoustical event this control panel gives you complete
information about the equivalent continuous sound level (Leq) and related
quantities according to IEC 61672 standard; if used together the FFT frequency
analysis you get a complete integrating sound level meter.
16.2 THE Leq CONTROL PANEL
Fig. 16.1 The Leq control panel
In Fig. 16.1 you can see the Leq Analysis control panel; this figure shows a low
frequency signal, increased in 2dB steps each maintained for 6 seconds, used for
subwoofers power handling capability. To be noted the equivalent level Leq (black
curve), the time history (red curve), the peak level (blue curve) and the levels
with slow and fast integration (purple and green curves).
For a description of the available shortcuts please refer to section 4.5.2.
16 Leq LEVEL ANALYSIS 211