1. Internet voice transmission function and cloud storage function can be realized to meet the audio applications of different networks of customers.
2. 16K-48K audio high-fidelity sampling to meet the needs of different customers for sound quality.
3. listening range: pickup radius 0~10m adjustable.
4. can precisely control the working time of a single device, can achieve full-time recording, event recording, timing recording and other recording methods.
5. support mp3 format WAV format storage at the same time. 6.
6. When the management server or the device is disconnected, it can realize the built-in SD card offline recording method to ensure the integrity of the data.
7. with sound-controlled alarm prompt function, when the front-end device audio is higher than the set value, automatically pop up and prompt the current alarm device real-time sound.
And output a switch signal to third-party devices to achieve linkage.
8. support for Hikvision Dahua camera video acquisition and with our audio to achieve the synthesis of the storage function.
9. visual management interface, the user can look at the working status of all devices through the client operating interface.
10. Adopt dynamic noise reduction algorithm, which can strongly eliminate or attenuate the dynamic noise such as specific human voice, music, car roar, etc., breaking through the traditional pickup
It supports three levels of audio noise reduction processing, high, medium and low. 11.
11. provide client SDK, allowing other platforms to call all devices real-time audio signal and alarm and other status information. 12.
12. Equipment inspection: the use of inspection and reporting design, real-time equipment system operation (dropped, SD card read and write abnormalities, acquisition end abnormalities, etc.)
To carry out rounds of inspection, improve maintenance efficiency and reduce equipment maintenance costs.
13. Automatic client upgrade: The equipment can effectively solve the problem of synchronous upgrade of a large number of user clients through the platform client automatic upgrade technology.
Model: FH-300N
Network communication protocol: TCP/IP UDP RTP
Function interface: Output interface: 1 analog audio output
Network port: 1 RJ45 10M/100M
Pickup range: Pickup radius 5~100m adjustable
Recording parameters: Sampling: 16K, code rate: 32kbps-64kbp;
Sampling: 32K , code rate, 64kbps-128kbp;
Sampling: 48K, code rate, 64kbps-128kbps
Storage format: support mp3 format WAV format simultaneous storage
Storage mode: support centralized network storage and local offline storage
Maximum capacity: local maximum support 64G TF card storage, support network storage
Recording mode: support full time recording, event recording, timed recording and other recording methods
Noise alarm: support 0-100 decibels audio noise alarm function, can automatically alarm the equipment decibels higher than the set value, and linkage monitoring center
Audio noise reduction: three levels of noise reduction adjustable: low-grade mid-grade high-grade; 20dB (adaptive noise reduction)
Remote volume adjustment: can be adjusted remotely through the network equipment collection range of 5-100 square meters adjustable, the local analog output volume size remotely adjustable
Pointing characteristics: heart-shaped (Array Mic)
Sound pickup head: condenser array microphone
Sensitivity：-40dB/array (1 kHz@94dB SPL)
Distortion：≧ 0.3% (85dB sound pressure, A-weighted)
Frequency Response：100Hz ～ 16kHz（1 kHz@94dB SPL
Output Level：2.5Vpp/（Line Out,1 kHz@94dB)
S/(N+D): 70dB (1 kHz@94dB SPL)
AD / DAC: 16Bit, DSP Mode
Maximum sound pressure: 120dB SPL (1 kHz ≤ 3% THD, A-weighted.)
Voice Platform: Digital Signal Processor
Core algorithm: DSP enhanced noise reduction algorithm (AGC + EQ + NC)
Operating environment: Temperature -40℃ ~ 75℃
Protection circuit: polarity protection, misconnection protection, lightning protection
Reliability indicators: MTNF ≧ 80000 hours
Shell material: aluminum alloy + ABS (natural color)
Shell protection level: sample shell protection in line with GB/T 4208-2008 IP20 grade requirements
Installation：Card holder fixed
Power input range：DC9V-15V, 12V recommended
Size: Φ76.8 mm×H17mm (Φ: diameter H: height)
