4 IN 1 Encoder is a high quality, broadcasting level, digital compressing encoder equipment which comply MPEG-2/DVB standard. It is able to simultaneously compress analog/digital video and audio signal. Through DVB standard ASI/SPI port, it can interconnect other equipment. This encoder equipped TBC (Time Base Correction) circuit, which greatly reduces the requirements for signal source, ensuring first rate video/audio quality, providing perfect picture. Besides, it supports all kinds of standard video/audio interface, including analog constituent, analog composite video and mono/stereo etc. The formats of digital compressing data output are ASI/SPI. Compression input adopts MPEG-2 MP@ML code. Encoder makes real time encoding and multiplexing, generating DVB transport stream. It completely complies MPEG-2 standard, having great compatibility.