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    Product description

    The 4th generation Song Meter SM4 is a compact, weatherproof, dual-channel acoustic recorder capable of capturing large amounts of data from wildlife such as birds, frogs and aquatic life. With the ability to store terabytes of data and record birds and wildlife in the field for months at a time, the Song Meter SM4 gives scientists a flexible tool for conducting species inventory, presence/absence surveys, endangered species detection and habitat health monitoring.

    The SM4 features two second-generation built-in microphones that create higher quality recordings of birds and vocalizing animals than previous generations of Song Meter microphones. The low-noise microphones have a superior signal-to-noise ratio so you capture more wildlife sounds that matter to you.

    Take advantage of the SM4’s dual-channel feature to ensure that recording continues – even after one microphone is disabled by wildlife-incurred damage. Record in stereo or mono using the built-in microphones, or connect one or two cabled microphones  (SMM-A2). Adding additional runs of cable to the external microphone gives you the ability to capture audio from far-off wildlife such as birds in the forest canopy or frogs at a nearby pond.

    To get you started quickly, the SM4 features easy-to-use Quick Start schedules, such as sunrise to sunset. You can also customize your schedules for specific wildlife sound recording needs. The free SM4 Configurator software can be used to configure settings and schedules from a computer. The SM4 Configurator software also provides a Security Lock option to prevent accidental changes to deployment and recording settings.

    The SM4 has two SD card slots that accept SDHC and SDXC cards. When fitted with two 1TB cards, the SM4 can store up to two terabytes of data.

    In addition, you can save card space by using W4V Compression. The format doubles the capacity of your SD cards with no noticeable degradation of recording quality. The resulting W4V files can be opened with and/or converted to uncompressed WAV files using the free version of Kaleidoscope software.

    Features of the Wildlife Acoustics Song Meter SM4

    • Weatherproof design suitable for any environment
    • Compact, at 218 mm x 186 mm x 78 mm
    • Built-in fail-safe and fault-tolerant technology, including two flash cards for failover and extensive internal diagnostics
    • Two built-in, low-noise microphones allow for quality, stereo animal recordings
    • Flexible gain settings and high-pass filters for optimal performance in different recording environments
    • Record 510 hours scheduled over months using four D cell batteries, 305 hours using NiMH batteries or even longer using external power.
    • Choose a quick-start schedule or easily create your own
    • Strong anti-alias filters improve signal-to-noise ratios
    • Capable of storing terabytes of data to two SDHC/SDXC flash cards
    • Optional cabled microphones
    • GPS attachment allows you to set date, time and location for multiple recorders
    • Save card space via W4V compression, doubling the capacity of SD cards without degrading recording quality
    • Compatible with Kaleidoscope Pro software to quickly scan recordings to help find species of interest

    Technical Specifications Song Meter SM4

    Recording Format
    Two-channel, 16-bit PCM .wav files or compressed .w4v files
    Sample RatesThe recorder supports the following sample rates in samples per second on one or two channels: 8000, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 96000
    Built-in Microphones (2)

    Directional Characteristic: Omni-Directional

    • Sensitivity: -35 ±4 dB (0 dB=1V/[email protected])
    • Signal to Noise Ratio: 80 dB Typ. at 1kHz (1 Pa, A weighted network)
    • Max Input Sound Level: 126 dB SPL Typ.
    Run-Time

    510 hours (typical at 24kHz stereo) with 4 D-cell Alkaline or 310 hours with NiHM batteries

    Power Options
     
    • Internal power using 4 D-size alkaline or rechargeable NiHM batteries
    • External power via optional SM3/SM4 Power Cable
    Storage
    • 2 SDHC/SDXC flash card slots (Class 4 or greater) (not included)
    • More than 1 terabyte total capacity using 2 512GB SDXC cards
    • Compression is available to further increase storage capacity
    Dimensions
    218mm x 186mm x 78mm
    Enclosure Material
    Polycarbonate
    Enclosure Environmental Protection

    Fully weatherproof with integrated humidity control

    Operating Temperature

    -20°C to 85°C

    Warranty

    3 years


    Manual (EN)

    Specifications

    Article number
    SM4

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    Song Meter SM4 Acoustic Recorder
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    Song Meter SM4 Acoustic Recorder
    5 In stock: Ordered on working days before 17:00, shipped the same day.
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