Tag: Monitoring Matrix Audio Signal
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The selection of monitoring matrix types, broadcasting and video conferencing applications should use broadcast-grade products, monitoring applications can use monitoring products, video signals (some people also regard it as video) to use the monitoring signal matrix. Monitoring matrix size selection: In one project, audio and video signals and VGA signals should be treated as three different media.
Audio signals generally have a large number of inputs, such as microphones and CDs, as well as audio from disc players. However, considering that amplifiers and stereos are generally only one set, at most one mixer can be added to the mixer before mixing. It may take several Road signal, so the output of the audio matrix will not be very large, such as 32 × 8 or 64 × 8, but it is not necessary to choose 32 × 32 or 64 × 64, unless it is broadcast and video conferencing transmission, there must be audio for each video Synchronous transfer.
Monitoring matrix In the design scheme, the number of signal sources is relatively easy to determine. See how many sources, the input quantity of the matrix is ​​fixed, but the number of independent output channels should be considered. This is the root in many cases. The number of inputs and outputs is very large. If a large matrix is ​​used, the cost will be higher (the larger the matrix, the harder it is, the higher the cost). It can be considered whether it can be used in groups. For example, during monitoring, some display in the display wall can be made. The device only displays the signals of a certain area, and the other devices respectively display the signals of other specific areas, then the large-scale matrix can be divided into small-scale matrices (such as dividing 128×64 into 4 sets of 32×16). It is possible to transmit signals between the two, so that the output of the matrix 2 can include part of the input signal of the matrix 1. The effect is not good, but the cost is reduced.
The monitoring matrix switcher is used as a part of the transmission system. The main problems that arise are as follows: "Common problems and solutions in engineering". The principle is the same. It is nothing more than several mechanisms. As long as the phenomenon can be distinguished, There should be no major problems in the direction of resolution. More specific is the use of small-scale matrix to form a large-scale problem, for example: when using 64 × 32 to form 128 × 32, you can not use two 64 × 32 to form 128 × 64, this is still the concept of group use, and application three The station 64×32 is composed of 128×32, which is the concept of full matrix. Therefore, the difference between group use and full matrix should be distinguished when combined. (The whole matrix means that each output can be selected in all inputs and independent of each other. ).
Depending on the operating mode of the system, sometimes there may be only a few distribution relationships between display devices (which are always consistent with each other, not independent). Then consider occupying an output port and adding a distributor if these devices are likely to be independent. , then it is better to have a separate output.
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