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    High-fidelity noise-canceling pickups NIS-30N

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      Pointing characteristics: Omni-directional
      Indoor and outdoor: outdoor installation
      Housing material: metal housing
      Installation mode: unlimited
      Industry applications: rail transportation, public security and justice, finance and banking, hospitals an
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    • 产品参数
    • 产品尺寸

    1, specifically for outdoor squares, streets, army posts, military and police combat refers to military vehicles synchronized recording and video and tailored boutique design.
    2, the use of strong, durable and beautiful metal shell, surface plating treatment, away from the environment around the noise interference.
    3, a single structure in the integration of two complementary high-sensitivity capacitive microphone, broaden the pickup audio band, pick up the sound more clear and bright.
    4, waterproof, moisture-proof, dustproof performance, rainwater environment can work for 48 hours, in line with IP 54 standards.
    5, for the sound chaotic environment for special voice stimulation brightening processing, noise resistance to further improve the ability to speak clear and bright fidelity;
    6, professional automatic noise recognition processing technology and ALC control technology, DAP digital sound function, shielding environmental noise.
    7, high fidelity, high sensitivity, high bandwidth, low noise, built-in efficient exciter, the perfect combination of fashion and craftsmanship.
    8, automatic adjustment of high-intensity sound and instant impact sound, reliable protection of back-end audio monitoring equipment.
    9, streamline appearance design and metal sound filter protection network, effectively reduce road, car, environmental noise interference.
    10, ultra-long audio signal transmission technology, using RVVP2 × 1.5 mm2 shielded cable transmission 1 km without distortion.
    11, -40 ℃ ~ 75 ℃ super ambient temperature work to ensure that the back end of high-quality recording effects.
    12, integrated professional SMT audio processor, can directly drive active speakers, hard disk recorders, recorders, etc.

    Pickup range :100 square meters
    System platform :TI dual-core DSP high-fidelity processor
    Pointing characteristics :Omni-directional
    Sensitivity :-36±3dB RL=2.2KΩ Vs=1.5V ( 1KHz 0dB=1V/Pa)
    Sampling rate :36k/24bit
    Audio algorithm: New integrated systems DSP high-fidelity voice processing algorithm
    Noise reduction capability: 15-30dB (white noise)
    Frequency response: 20Hz ~ 20kHz (1 kHz@94dB SPL)
    Pre-selected features: digital EQ, speech enhancement NIS
    Speech recognition rate: 95 % (20dB noise environment)
    Transmission level: 2Vp-p (1 kHz@94dB SPL)
    Distortion: ≤ 0.8% @0dBv (80dB SPL)
    Output impedance: 600-1000 ohms unbalanced adaptive
    Protection circuit : polarity protection, misconnection protection, lightning strike protection, ESD protection
    Connection :Three-wire system: power line (red), audio (white), common ground (black)
    Supply voltage :35mA linear regulated power supply DC 12V
    Case material and size: metal case, 18mm (height) × 8.3mm (diameter)
    Operating environment : -35℃ ~ 70℃
    Electromagnetic compatibility: GB20815-2006
    Reliability index: MTNF≧100000hours
    Mounting: Camera universal bracket mounting method (thread mounting)

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