KD-BC-4H Hot-selling Live Recording, Broadcasting and Push Streaming All-in-one Virtual Studio Green Screen Keying System


KD-BC-4H Hot-selling Live Recording, Broadcasting and Push Streaming All-in-one Virtual Studio Green Screen Keying System

1.Broadcast-grade hardware high-definition switcher;

2.Built-in digital mixer, analog mixer and audio hardware delayer;

3.Micro SD/TF Card storage, recording as MP4;

4.RTMP push live broadcast;

5.Intercom and Tally system;

6.4 High-definition input screens and 2 high-definition output screens respectively display PVW/PGM;

7.Camera PTZ control, preset position control, white balance adjustment, aperture adjustment, etc.;

8.Built-in wireless control module, supports wireless control of PTZ cameras and Tally;

9.Application: studio, on-site multi-camera recording, education recording and broadcasting, media live broadcasting, live broadcasting of various conferences and events;

10.Size: 440mm×360mm×150mm (screen closed)290mm (screen open); weight: about 6kg;

Product Detail

Product Tags

1 Pieces


Product specification sheet

Model KD-BC-4H
Power supply AC110V-240V,50Hz,80W
Operating temperature 0-40℃
Size (L×W×H)440mm×360mm×150mm
Weight 6kg
Signal System 1080 50i/50p
Video input HDMI×1,SDI×4
Video output PGM output,HDMI×2,SDI×1
Audio input Stereo (L,R) IN RCA×5,MIC XLR×5
Audio output Stereo (L,R) OUT RCA×1,Balanced XLR OUT×2,MonitorФ3.5×1,Playback monitorФ3.5×1,The director calls MICФ3.5×2
Other interfaces RJ45×1,USB×2,TF×1,WIFI
Video switching Hardware switch signal×4(1920×1080)
Audio mixing Digital mixer×5,Analog mixer×5,Audio hardware delay device×1
Live streaming Rtmp
Delayed broadcast Audio and Video hardware delay broadcasting system (Non Standard)
subtitle Subtitle system,Virtual matting system (Non Standard)

Product description

KD Portable Director and Recorder System Technical Parameters-KD-BC-4H 

1.Video: Input: 4 groups of SDI input, 1 group of HDMI input, support 1080p50 1080i50 input; built-in high-definition subtitle machine input interface, the interface is HDMI or SDI; Output: 1 groups of 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 groups of XLR balanced audio inputs, supporting LINE and MIC modes, and each with a 48v phantom power switch, 5 groups of RCA (R, L) stereo input, 5 groups of SDI, HDMI digital audio plus De-embedding input; output: 2 groups of XLR balanced audio output, 1 group 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, realizing 4:4:4 uncompressed full frame zero second hard cutting, special effects switcher provides T-shaped damping transition controller, also It can support single-key hard cutting and automatic switching, with a resolution of 1920×1080, providing hundreds of special special effects, pre-made portraits, fade in and out, and picture-in-picture, etc., built-in picture-in-picture position control;

4.Monitoring system: 6 independent high-definition 1920×1080 displays, 2 9-inch screens and 4 4-inch screens. One 9-inch screen displays the PGM live window, and the other 9-inch screen displays the PVW preview window. 4 A 4-inch screen displays the input signals separately; provides a display selection button, with a 10-screen split display output, respectively displaying 8 input signals and 2 output signals;


5.Intercom system: Built-in 4-channel hardware guide and call system and 4-channel guide and prompt system Tally, provide 4 groups of call selection buttons, realize each channel separately, all calls and mute;

6.Audio processing: Built-in digital mixer, analog mixer and audio delayer, audio embedding and de-embedding, realizing the mixing of digital audio and analog audio, 5 sets of SDI, HDMI digital plus de-embedding audio, 5 Set of XLR professional microphones or balanced audio, with 5 sets of 48V phantom power and 5 sets of RCA (R, L) stereo audio hardware mixing console, the mixer with speech amplifier and audio processing, 7 sets of volume adjustment faders are controlled separately Volume of digital audio, analog audio and main output audio, 2 sets of XLR balanced output, 1 set of RCA (R, L) stereo output, 2 sets of HDMI digital audio embedded output and 2 sets of SDI digital audio embedded output, built-in audio hardware Delay system, through the hardware knob to adjust the audio speed, to achieve precise synchronization of audio and video;

7.Camera PTZ control system: Built-in three-dimensional joystick, respectively control the push, pull, tilt and zoom of each camera, provide 9 groups of shortcut keys preset button and 2 groups of preset position setting buttons, each camera position can realize 100 presets Provides hardware rotary encoder control to select the camera address, provides camera manual and automatic precise control system, can set the camera white balance, focus, 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 constant frame and constant code recording. The hardware recording system provides Micro SD/TF Card, USB and other storage interfaces, and supports TF card, U disk and mobile hard disk recording and recording. The file format is MP4, which can be directly imported into the non-linear editing system;

9.Built-in Wifi: WLAN main specifications, PHY: support 2.4 band and 5G 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;


11.Live broadcast and release transmission protocol: support FMS live broadcast and release, provide RTMP push and RTMP services, provide APP live broadcast setting system, and can remotely set the publishing address, push bit rate and resolution, etc.;

12.Built-in automatic director control unit, realize video automatic intelligent director control, semi-automatic control, manual control, three modes for users to switch freely, just press the record button, you can start recording and live broadcast, without any intervention in the middle ;

13.Scene switching strategy: Automatically switch between teacher close-up, teacher panoramic view, student close-up, student panoramic view, blackboard close-up and teaching computer screen intelligent switching and manual switching, and different switching strategies can be set according to needs (needs with smart camera Cooperate);



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