Linear Acoustic LQ-1000 User Guide
Applications and Use
16
Note that while some of the readings can be useful for continuous live metering, our early
experience has shown that the best use of EBU mode is on a segment-by-segment basis
where the meter is Started, Stopped, then reset for the next measurement.
The following functions are supported:
•
EBU Measurement gate:
•
Absolute gate below -70 LUFS (Loudness Units w.r.t. Full Scale) and a gate
with a relative threshold -8 LU below absolute gated loudness level
•
Numeric display of overall (integrated) loudness with respect to target to and accuracy
of 1/10th LU (Loudness Unit), controlled by start/stop/reset
•
Display of Loudness Range (LRA):
•
Measures the variation of loudness on a macroscopic time scale
•
Difference between low (10th) and high (95th) percentile loudness distribution
•
Display of low (10th), High (95th) and Median loudness from which LRA is derived
•
Simultaneous multi-speed bargraphs:
•
Momentary - 400msec integration for indicating very fast changes in loudness
•
Short Term - 3 second integration for useful indication of loudness changes
•
Integrated - Bargraph version of overall loudness (infinite)
•
Color change centered on target to indicate loudness "Comfort Zone"
•
Logging functions to save measurement data:
•
Timestamped (internal clock or configurable NTP connection) CSV files for
direct import to external spreadsheet and graphing software
•
Session Log - All readings between Start/Stop, reset for new session
•
Weekly Log - All readings for 7.5 days, rolling capture
Summary of Contents for LQ-1000
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