Song Meter SM4M User Guide Supplement
4 Specifications
Wildlife Acoustics, Inc.
page
22
Acoustic Power Consumption:
Recording: 135 – 185 mW
Sleeping: 1.8 mW
Ultrasonic Power Consumption:
Recording: 230 – 270 mW
Sleeping: 1.8 mW
4.3
Memory Card Specifications
Type:
Class 4 or faster SDHC and all SDXC (reformatting not required)
Capacity
: Two card slots each support up to 32 GB SDHC
or up
to 512 GB SDXC.
4.4
Audio Specifications
Acoustic Model
Channels
: 2
Recording Format
: 16-bit PCM .wav
Analog to Digital Converter Full-scale
: 0.707V rms (2v p-p)
Supported Sample Rates (Hz)
: 8000, 12000, 16000, 22050, 24000, 32000,
44100, 48000, and 96000
Amplifier Gain
: 0.0 – 59.5 dB in 0.5-dB steps
High Pass Filter
: Selectable 2-pole at 220 Hz or 1 kHz
Anti-Alias Filter Performance
:
Fraction of Sample Rate:
Anti-Alias Filter Gain (dB):
0 to 0.39
±0.1
0.4125
−0.25
0.45
−3.0
0.5
−17.5
0.55
−75.0
Ultrasonic Model
Channels
: 1
Recording Format
: 16-bit PCM WAV
Analog to Digital Converter Full-scale
: 0.884V RMS (2.5v p-p)
Supported Sample Rates (kHz)
: 192, 256, 384, and 500
Amplifier Gain
: 0 or 12 dB
High Pass Filter
: Selectable 2-pole at 16 kHz
Anti-alias Filter:
2-pole at 156 kHz
