Metric Halo SpectraFoo - Manual (Page 20)

Instruments
20
• The second color mode causes the meter bar to be color coded to indicate Peak and RMS, and uses
color to distinguish its different modes. The yellow part of the meter indicates the instantaneous peak to
peak level of the program material. The purple part of the meter indicates the RMS level. These colors
are user definable.
The Peak and RMS meters each have independent, resettable peak hold functions. The peak holds are repre-
sented by triangular carets of the same color as the meter to which they correlate. The hold indicators can
also be drawn as bars. The VU meter is an adjustable ballistic average indicator that is represented by the grey
triangular carets (or bar if selected). Detailed meter readings (1/100 dB accuracy) and meter control parameters
can be accessed by clicking on the Show Details button. The meter also contains a numerical counter that
indicates the largest number of consecutive samples surpassing 0 dBFS, as well as the number of times the
input signal has exceeded the clip threshold. The calibration of the meters is referenced against 0 dBFS, unless
you have selected one of the dBu calibrated meter scales.
Click this button to pop up the Power Meter Details window
These provide instantaneous numerical readings of the
Peak , RMS, and VU levels with 0.01 dB accuracy.
Click this button to pop up the
Power Meter Options window
Clicking this button resets the
Peak and RMS Peak Holds.
Figure 3.3: Digital Level Meters (Peak, RMS and VU meters w/ Clipped Sample Counter)
User-Definable Over (Digital Clip) Counter
The Level Meter counts consecutive full scale samples and displays the largest count encountered. This is
displayed in the field labeled “cfs”. You can also define how many consecutive full scale samples the Level
Meter has to see before it considers the signal to have clipped. You control this behavior using the Physical
Unit calibration system in SpectraFoo (see “Physical Unit Calibration In SpectraFoo”). The Level Meter has