Guangzhou DSPPA Audio Co., Ltd.

MP9866 Digital Conference System

Solution Description

DSPPA new generation of pure speech digital conference system perfectly combines 8-pin cable hand-in-hand connection and dual-backup full digital intelligent control technology of network interface. The system is easy to operate and install. Besides, the system adopts high-speed CPU program editing control, and high-fidelity circuit design to reproduce the original sound quality; the system supports automatic detection of system unit, innovative speech mode settings, and time-limited speech function settings, becoming a new generation of multifunctional conference system, which is an ideal system for various types of projects such as multi-functional conference rooms in hotels, governments, enterprises, etc.

Solution Highlight Functions

 System Connection Diagram

 Attainable Functions

1. Multiple styles of microphones available
This digital conference system has designed different styles of microphones for customers to choose according to their different needs. The long conference microphones (CM60 and CM61) and the square microphones (CM63 and CM64) are both discussion and speech units; and the conference microphones (CM67 and CM68) are long microphones with built-in speakers; all those three styles of microphones can be connected via 8-pin dedicated conference cable and CAT5/6 network cable, for stable and reliable transmission, and convenient installation.
2. Adopt dual system dual backup multi-channel system unit connection
It adopts all-digital high-fidelity circuit development design, fully combines unique digital technology, network technology and digital audio technology to achieve high-speed data transmission under high-bandwidth conditions, thereby further improving the reproduction of the microphone sound and the transmission speed of sound to reduce sound loss and ensure high-fidelity audio of the microphone tone. It has 2-channel 8-pin dedicated conference unit connection ports, supporting 25 units each, and 4 RJ45 network cable connection ports, supporting 20 units each.
3. High-fidelity sound quality
It adopts a unique high-fidelity audio processing circuit and built-in RISC high-performance CPU as the core for stable system, fast calculation, and adopts 32-bit high-speed DSP floating point processing, with high bandwidth, acoustic feedback suppression, echo cancellation, noise cancellation, digital equalization effects, and automatic gain, to effectively prevent feedback and interference, and ensure the perfect and clear sound quality, confidentiality and security of the meeting.
4. Auto detection of system unit, with conference recording function
When connected to the host, all conference units can display the usage status in real time. When the indicator light is on, the host starts to detect automatically. At this time, all lines are working normally. With a recording output interface, all conference records can be fully recorded and saved.
5. Adopt LCD display screen for more intuitive and user-friendly operation
Adopt a 1.77-inch true-color display screen to display system menus and host status and other information, and centrally control all conference functions through the panel navigation keyboard.
6. Multi-mode speech function
The system speech mode has first-in-first-out, last-in-first-out, auto mode, discussion mode, chairman mode, etc. The chairman unit can use the priority button (Priority) to control the speaking sequence and control the atmosphere of the meeting. Under the voice control setting (allowed mode), if you speak to the microphone head of the microphone unit when the microphone unit is not turned on, the microphone will be automatically turned on.
7. Hand-in-hand connection for conference units
The system connection uses low-voltage DC24V safe voltage to ensure the user’s personal safety for high safety, low energy consumption and environmental protection.
The conference unit can be used in two ways: CAT5e (CAT6 or CAT7) network cable with RJ45 crystal plug or 8-pin dedicated conference cable, according to the user’s needs, effectively resisting interference, with more convenient installation and more reliable transmission.
8. Sound reinforcement system
In terms of sound reinforcement, it focuses on the clarity of speech sound reinforcement, sound transmission gain, sound pressure level, sound field uniformity, and music playback sound quality, which can be achieved through digital audio processing. The system is equipped with a MG12 mixer for audio access in the conference room. In addition, D6575 is used as a professional audio processing device for clear language without distortion and feedback whistling. The 2 professional full-range high-fidelity wall mount speakers in the conference room meets the needs of the sound field in the conference room; 1 dual-channel constant-resistance stereo amplifier promotes sufficient on-site sound pressure margin, uniform sound field; accurate sound image positioning, etc.

 Main Devices

MP9866  Digital Conference System Host

● Using eight-core all-digital high-fidelity circuit development and design;
● Built-in RISC high-performance CPU as the core, stable system and fast calculation;
● The system host adopts liquid crystal display, and the menu operation is more intuitive and us-er-friendly;
● The system host has 2 channel digital outputs,4 channel RJ45 output,which total can connect 120 units in total;
● The system speech mode has first-in first-out, fully open mode, chairman mode, etc;
● Unique high-fidelity audio processing circuit to improve the clarity of the entire system;
● Equipped with a recording output interface, all meeting records can be completely recorded and saved, and the audio output can also be connected to an external audio amplifier;
● The chairman unit can use the priority button(Priority) to control the order of speaking and control the atmosphere of the meeting;
● The conference unit is powered by the system host, and the working voltage is DC 24V, which meets safety standards.
● The host has an RS232 interface, 1 balanced audio output interface, 1 RCA audio output interface, and 1 RCA audio input interface, making the system connection to the audio system more flexible for expansion

Detailed Description

Multiple styles of microphones are available
CM60/CM61 --- CM63/CM64 ---CM67/CM68
Conference Chairman and Delegate Microphone

● Fully digital-control design.
● Powered by system Control Unit. The output voltage is a safety voltage, 18V.
● The unit is provided with a 1.5m 8P connection line, used for “cross” type line connection.
● The condenser microphone with a replaceable windproof cover.
● Elongated microphone neck available.
● Microphone head with a red ring indicator displaying the speech status.
● With a speech switch key and indicator on the front panel of base.
● Priority speech function of interrupting speech in the other microphones
● Providing priority music chime.
● Free from any restrictions in the system, and can be placed at any location in the system circuit.
● With Chairman Only mode.
● Built-in speaker in Microphone CM67/CM68

CM67/CM68 Conference Chairman and Delegate Microphone
Build-in 3W Speaker

Microphone connection methods:
The host MP9866 perfectly combines dual-backup full digital intelligent control technology of hand-in-hand 8-pin interface and network interface, easy to operate and install. The three styles of microphones can be connected with 8-pin cable or CAT5/6 in hand-in-hand connection according to the actual installation requirements of customers. No matter if the microphone is connected with 8-pin cable or CAT5/6 network cable, the system is equipped with corresponding a T-type adapter (8-pin adapter and RJ45 adapter).

T-type adapter display

  • Tel:+86 020 37166520
  • Address:No.1 Xiahe Rd, Jianggao Town, Baiyun District, Guangzhou, Guangdong, China
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