Wildlife Acoustics SM4 Song Meter

Wildlife Acoustics SM4 Song Meter




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Wildlife Acoustics SM4 Song Meter

The Wildlife Acoustics SM4 Song Meter is a compact, dual-channel acoustic recorder in a weatherproof housing which is capable of capturing large volumes of data from your target area such as birds, frogs and aquatic life.

It features two built-in microphones, extensive scheduling options, large data storage and low power consumption, giving you the longest deployment times of any acoustic recorder available.

The SM4 features new generation, built in microphones to ensure higher quality recordings than those from all previous Song Meters. The SM4 also has two additional microphone ports giving the flexibility to record additional data from a cabled microphone.

Two channels gives you the flexibility record two sources of audio at the same time, the SM4 has dual channels. Record in stereo or mono using the built-in microphones alternatively connect one or two cabled microphones to have the ability to record audio from points further away of wildlife such as birds in the forest canopy, or frogs at a nearby pond.

The SM4’s new power circuitry has significantly increased deployment time over the previous model the SM3, now up to 400 hours of recording time using internal batteries. When in Sleep Mode, between scheduled recordings, the SM4 uses almost no power, enabling it to remain idle for months.

The SM4’s new Quick Start menu and Scheduler feature are an industry first. The SM4 comes with standard recording programs; including daytime, nighttime, and continuous recording schedules. Simply choose the schedule and press the Start button. The SM4’s new Scheduler features makes it easy to create custom schedules that suit your exact needs.

The SM4 has two SD card slots that accept SDHC and SDXC cards. When fitted with two 512GB cards, the SM4 can store over a terabyte of data.

Listen to your recordings in the field, the SM4 features an integrated headphone jack to monitor activity in real-time.



Recording Technology:
Two-channel, 16 bit .wav

Recording Bandwidth:
20Hz – 48kHz

Sample Rates:
Supports the following sample rates in samples per second on one or two channels: 8000, 12000, 16000, 22050, 24000, 32000, 44000, 48000,96000

Built-in Microphones:
2 Directional Characteristic: Omni-Directional
-33.5 dB /- 3 dB at 1 kHz (0 dB=1 V/Pa)

Signal to Noise Ratio:
80 dB Typ. at 1kHz (1 Pa, A weighted network)

Max Input Sound Level: 122 dB SPL Typ.

Up to 400 hours with 4 D-cell Alkaline or 250 hours with NiHM batteries. NOTE: Run times can vary by as much as 50% depending on the characteristics of specific brands and models of flash cards, the kind and quality of batteries used (alkaline versus rechargeable), temperature and configuration.

Power Options:
Internal power using 4 D-size alkaline or NiHM batteries
External power: Optional – SM3/SM4 Power Cable

2 SDHC/SDXC flash card slots (Class 4 or greater)*  More than 1 terabyte total capacity using 2 512GB SDXC cards.  We recommend SanDisk brand SDHC/SDXC cards.

H 218 mm x W 186 mm x D 78 mm

0.7 kg no batteries / 1.3 kg with batteries

Enclosure Material:
Polycarbonate – Fully weatherproof

Operating Temps:
-20°C to 50°C

3 years Manufacturers

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