SPLtrack User Manual
3. Specifications
DSP Specifications
Microphone Input
Title
Specification
Input
Digital signal processing (DSP), input sample rate 48
kHz, bit depth 24
Range
35 to 130dB SPL
Frequency Response
20 to 60 Hz +0/-0.5 dB; 60 to 20 kHz +0/-0.1 dB
Frequency Weighting
A (default) C,Z(unweighted) selectable
Time weighted (Lp) Measurements
F (fast, time constant 0.125 seconds) or S (slow, time
constant 1 second)
Time-averaged level (leq) Measurement
Intervals
1 minute, 5 minutes, 10 minutes, 15 minutes, 30 minutes,
1 hour
Percentile Level (Ln) Measurements
L10, L90
Percentile (Ln) Measurement intervals
1 minute, 5 minutes, 10 minutes, 15 minutes, 30 minutes,
1 hour
Title
Specification
Compatibility
Constant Current power (CCP) compatible mic
Connector
Female BNC
Power
24 volts DC, 4 milliamperes, constant current,
nominal
Data
Compatible with IEEE® 1451.4-2004 TEDS version
1.0, template 27
7
