Dahua Omni-directional condenser microfoon, high fidelity, discrete montage, voor middelgrote ruimte

DH-HAP201
Hi-fidelity Pickup

· CPU built-in audio sampling module, low interference from the hardware
 circuit, audio signal has low noise
· Smart audio crack protection, auto low microphone sensitivity to meet
 the requirements of the high volume to reduce audio crack.
· Adopts wide dynamic range processing technology for the valid audio
 signal, balances the processing of high audio and low audio.
· High-sensitivity microphone, omni-directional pickup, clear audio, high
 anti-inference capability,
· Noise reduction via the algorithm to enhance signal definition.
· Auto gain and compensate the human voice frequency. Exaggerates the
 human voice in environment of lots of noise and can present the clear
 voice.
· It can effectively reduce the indoor reverberation resulting from the
 reflection via the wall, ceiling.
· It supports screaming control function and can greatly enhance the
 speaker effect when the pickup and the loud speaker are in the same
 environment.
· Built-in high-speed CPU, real-time processing audio signal, low latency.
· Built-in lighting protection, power two-polarity misconnection
 protection, static electricity protection.
· CE, FCC compliance.

System Overview
This series product is suitable for the environment of high synchronization audio/video record quality such as public security, finance, education,
building, energy sources, procuratorate, court, etc. It meets the audio collection requirements from the near distance in the indoor/outdoor environment, and the audio collection in the quiet or noisy scenario. Especially in the large hall or lobby (such as bank or administrative affairs hall), the
noise from the scene and the continued echo resulting from the acoustic
reflection may result in low audio recognition rate. This series product has
the designated design on the structure, hardware, software and son on,
which effectively solve the acoustic problem in the actual environment,
and present the generally reliable audio/video surveillance experience.

Technical Specification
Performance
Pickup Range 1 square meter–150 square meters (10.76
sq.ft–1614.59 sq.ft)
Audio Transmission Distance 3000 m (9842.52 ft)
Frequency Response 20 Hz–20 kHz
Sensitivity -38 dB
SNR 85 dB (1 m 40 dB audio source SPL) 52 dB(10 m 40
dB audio source SPL)1 kHz at 1 Pa
Pointing Features Omni-directional
Gain Adjustment 0 VPP–4.6 VPP adjustable (75 dB sound pressure
1 kHz)
Dynamic Range 106 dB (1 kHz at Max dB SPL)
Distortion ≤0.3% (74 dB sound pressure, A weighted)
Max. Sound Pressure 120 dB SPL (1 KHz,THD 1%)
Output Resistance 25 Ω non-balanced
Output Signal Amplitude 2.5 VPP/-25 dB
Microphone High-fidelity micro electromechanical system
(MEMS) silicon microphone

Signal Processing Digital NR, reverberation, human voice
enhancement, screaming control
Protection
Protection 8kV Air,6kV contact ESD lightening protection,
power polarity misconnection protection
Electrical
Drive Capability Built-in preamplifier circuit
Connection Mode 3 lead wire: (power, audio, public GRD)
Transmission Cable 3-Pin mm² RVVP shielded cable
Power Supply 12V DC (9V-18V)
Power Consumption 0.72W (60mA)
Environmental
Operating Temperature -20 °C to +60 °C (-4 °F to +140 °F)
Operating Humidity ≤95%RH
Storage Temperature 0°C to +40°C (+32°F to +104°F)
Storage Humidity ≤95%RH
Construction