KD-BC-4H hot-selling live broadcast recording push streaming studio broadcast equipment

Portable guide system technical parameters 1.☆Video: Input: 4 sets of 3G/HD-SDI input, 1 set of HDMI input, support 1080i50Hz, 1080P50Hz and other signal input; built-in high-definition subtitle machine input interface, the interface is HDMI or SDI; output: 2 sets of 3G/HD-SDI and 2 sets of HDMI high-definition video output at the same time, including 1 set of PVW output and 1 set of PGM output; 2. ☆ Audio: Input: 5 sets of XLR balanced audio input, support LINE and MIC modes, each with 48v Phantom power switch, 5 sets of RCA (R, L) stereo input, 5 sets of SDI, HDMI digital audio plus de-embedded input; Output: 2 sets of XLR balanced audio output, 1 set of RCA (R, L) stereo output, 3.5mm audio Monitor output; 3.☆Hardware special effects console: eight-channel hardware high-definition mixed special effects console, built-in frame synchronizer, realize 4:4:4 uncompressed full-frame zero-second hard cutting, special effects switcher provides T-type damping transition control 4. ☆Monitoring system : 6 independent high-definition 1920×1080 monitors, 2 9-inch screens, and 4 4-inch screens. One 9-inch screen shows the PGM live window, and the other 9-inch screen shows the PVW preview window. 4. The 4-inch screen displays input signals separately; Provides display selection buttons, with 10-screen split-screen display output, respectively displaying 8 input signals and 2 output signals; 5. ☆Intercom system: built-in 4-way hardware guidance call system and 4 The road guidance prompt system TALLY provides 4 groups of call selection buttons to realize individual, all call and mute for each channel; 6. ☆Audio processing: built-in digital mixer, analog mixer and audio delayer, audio adding and de-embedding, Realize the mixing of digital audio and analog audio, 5 sets of SDI, HDMI digital adding and de-embedding audio, 5 sets of XLR professional microphone or balanced audio, with 5 sets of 48V phantom power supply and 5 sets of RCA (R, L) stereo audio hardware mixer , mixer with voice amplifier and audio processing, 7 groups of volume adjustment faders to control the volume of digital audio, analog audio and main output audio, 2 groups of XLR balanced output, 1 group of RCA (R, L) stereo output, 2 groups HDMI digital audio embedded output and 2 sets of SDI digital audio embedded output, built-in - in the audio hardware Delay system, the audio speed can be adjusted through the hardware knob to achieve precise synchronization of audio and video; 7. Camera pan/tilt control system: built-in three-dimensional joystick, respectively Control the push, pull, pitch and zoom of each camera, provide 9 groups of shortcut key preset buttons and 2 groups of preset position setting buttons, each camera position can achieve 100 preset points provide hardware rotary encoder control to select the camera address, Provide camera manual and automatic precise control system, can set the camera white balance, focal length, aperture, color, brightness, etc., to meet the needs of indoor and outdoor shooting; 8. ☆Recording system: Built-in 4:2:0 encoding recording system to achieve fixed frame code recording. The hardware recording system provides Micro SD/TF Card, USB and other storage interfaces, and supports TF card, U disk, mobile hard disk recording and recording. The file format is MP4, which can be directly imported into the nonlinear editing system; 9. Built-in Wifi: main specifications of WLAN, PHY: support 2.4 frequency band and 5G frequency band 2x2; MAC: support IEEE 802.11 d/e/h/i/k/w; support 20M/40M/80M coexistence; support IEEE 802.11 b/g/n/ac; transmit power: 11b@16dBm; 11g@14dBm; 11n@13dBm; MCS9@13dBm; 2.4G receiving sensitivity (40MHz): -80dBm@Rate MCS 0; -68dBm@Rate MCS 5; -64dBm@MCS7, 5G receiving sensitivity (40MHz): -80dBm@Rate MCS 0; -68dBm@Rate MCS 5; -64dBm@MCS7; 10. Built-in audio and video encoding system: video encoding H.264, audio encoding AAC, encoding delay ≤ 67ms, video encoding rate 256Kbps ~ 25Mbps adjustable, audio encoding rate 32Kbps ~ 512Kbps, AAC encoding 64Kbps; RTMP service, providing APP live broadcast setting system, which can remotely set the release address, push code rate, resolution, etc.; 12. ☆Transmission and control: support standard 3G/HD-SDI input, interface BNC type, BNC interface with power supply and power protection , connect the camera control all-in-one machine, and realize a 75Ω coaxial cable to control and transmit five signals, which are: full HD 3G/HD-SDI video signal of the camera + audio signal of the camera and XLR + power supply of the camera + pan/tilt control of the camera + guide Video signal TALLY, only one line is needed to complete all the signals of the camera and the guide host, all the control, communication and power supply transmission, which solves the wiring problem of mobile shooting to the greatest extent; 13. Built-in automatic broadcast control unit to realize automatic video Intelligent broadcast control, semi-automatic control, and manual control are three modes for users to switch freely. Just press the record button to start recording and live broadcast without any intervention. 14. Scene switching strategy: automatic switching of teacher close-up, teacher panorama, and student close-up , Student panorama, blackboard close-up and teaching computer screen intelligent switching and manual switching, different switching strategies can be set according to needs (need to cooperate with smart cameras);