As we all know, held a large-scale live variety show television need to invest a large number of instrumental, vocand required dancers to participate. For the audio system in terms of the live site easier to problems (video scene with multiple cameras, the director can be any switch which camera lens; audio system is only one signal for the.

director of a site used). To do a live site foolproof, generally take the pre-recording the same period, play the audio tape. Whether it is vocal or, dance, or, many of the instrumental performer in the studio to do a lot of pre-recording work, a lot of manpower, money and time. The use of MIDI technology, it will save a lot of manpower, financial resources, time, improve efficiency several times.