The wired wireless shared microphone adopts antenna diversity technology, and DSSS modulation ensures high anti-interference within the transmission frequency range of 2.4/5.2/5.8ghz. If the interference frequency system automatically switches the frequency band during the meeting, the signal communication between the host and the terminal unit adopts wireless base station technology for voice data interaction to ensure that the audio delay is less than 10ms.
With the technology of intellectual property rights owned by qituo, each terminal unit can be equipped with wireless transceiver and relay function, and the network between the terminal unit and the terminal unit can ensure that the data is not lost. The audio sampling frequency is up to 48Khz, and the frequency response of speech unit is up to 30Hz-20KHz, similar to the effect of CD sound quality.
By using qtbm-dct coding technology, ID number can be rewritten repeatedly for terminal speech unit in system software, which is convenient for repeated conflict of ID number during installation and replacement. Qtrf-derfi digital electromagnetic radio frequency anti-jamming technology of qituo has carried out new anti-jamming algorithm, advanced circuit design and overall optimized shielding deployment for transmission signals, breaking through the traditional technology, providing more excellent anti-jamming shielding ability, effectively avoiding mobile phones, WiFi, Bluetooth, radar, wireless signals, microwave signals, and complex machine room rings Environment and other electromagnetic interference.
★ it has the functions of discussion, speech, video tracking, simultaneous interpretation, etc
★ cardioid directional microphone, polar head and speech button with LED indicator ring
★ adopt qituo qtdsp-dpt digital audio processing and transmission technology to realize complete digitalization of audio
★ antenna diversity technology and DSSS modulation are adopted to ensure anti-interference during transmission
★ wireless base station is used for voice data interaction to ensure that the audio delay is less than 10ms
★ 128 digit encryption and 48 digit PIN code encryption protection to ensure the privacy of the meeting and avoid eavesdropping and malicious interference
★ the audio signal is processed by special high-performance DSP, and the audio sampling frequency is up to 48Khz
★ the system host and microphone are connected by standard CAT5 network cable hand-in-hand mode
★ each microphone can independently adjust the gain and balance (5 segments), and can adjust different frequency response according to different speaker voice characteristics, until the ideal effect is achieved
★ the system has a ring-shaped hand-held double computer backup connection function. When the main control system host fails to work normally, the backup system host immediately starts the takeover meeting to ensure the normal progress of the meeting
★ internal text communication (short message) can be carried out between the system host and microphone to facilitate information transmission during the meeting
★ system microphone and system host can realize remote diagnosis and remote upgrade through TCP / IP connection
★ microphone can set multi-level authority (different authority can be allocated according to the nature of the position, such as chairman, VIP, representative, etc.)
★ each microphone can work independently to ensure that the failure and replacement of any microphone in the system will not affect the normal operation of the whole system
★ the microphone is powered by the main unit of the system, and the working voltage is 48V DC, which conforms to the safety standard
★ each microphone unit has an independent digital ID, and the conference host can distinguish the audio stream of each microphone. With the help of the third-party speech recognition system, it can realize the speech conversion of text and distinguish each microphone
★ the microphone has the function of wired and wireless sharing. The microphone plug-in cable can be used as a wired microphone. When the network cable is disconnected, it can be used as a wireless microphone. The sound signal has no breakpoint.
★ each terminal unit can be equipped with wireless transceiver and relay function by adopting the independent R & D technology of qituo, and each unit can also network with each other to ensure no data loss
★ built in rechargeable lithium battery, with battery capacity supporting 12 hours of continuous speech (optional battery detachable)
★ comply with gb8898-2011 national standard for compulsory certification of audio and video equipment
Conference base |
|
Conference microphone |
|
Key number |
5 (6 chairman units) |
Pickup |
Cardioid condenser pickup |
frequency range |
2.4Ghz;5.2GHZ;5.8GHz |
sensitivity |
-46 dB |
modulation |
DSSS direct sequence spread spectrum technology |
Directional |
0°/180° > 20 dB (1 kHz) |
Channel switching |
Automatic silent switching |
Signal-to-noise ratio |
>70dB |
Transmitting power |
Maximum 20dbm per channel and area |
frequency response |
30Hz~20kHz |
Display |
OLED display |
Input impedance |
2kΩ |
Maximum power consumption |
1.0W |
Equivalent noise |
20dB(SPL) |
Shape material |
ABS gum |
working temperature |
-10℃ to +55℃ |
colour |
black |
Maximum sound pressure |
125dB(THD<3%) |
weight |
About 1.1kg (with microphone pole) |
Microphone rod length |
430mm (standard) / 300mm (optional) |
Outline size |
185x130x50mm (W x D x H) (excluding microphone pole) |
*If the distance of wireless transmission is more than 30m, the transmission power and frequency will be different in different countries and environments |