CLIOwin 7 PCI User's Manual - Audiomatica

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 behaviour 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 informations
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.
Chapter 16 - Leq Level Analysis 185