【 Weak current College 】 digital audio connections from digital mixer-Power By 【 China power house network 】

During the initial contact clock adjustment, you might think that this process is tedious, if it is a large data source connection, the device may make you feel like a nightmare, but as long as we make plans prior to connection, connection more carefully, to build a secure, well-performing systems is not a very difficult thing. Digital mixer of the most basic problem is to ensure that audio sources as well as between the sound source and the sound mixer are correctly synchronized between. In order to combine two or more signals, their data arrives at the same time have a mixer, a bit by bit, this also means that they must go through the same clock settings on the console. Many digital multitrack recorder manufacturers recommend their products in a big way as the main clock source (such as the built-in clock), can be delivered directly to digital mixing console, and then in the internal sound mixer directly receive Word clock data, operating principles and said the workstation. Options include a built-in clock, an external reference to the Word clock input, or any digital input (usually in pairs). Once the sound mixer are clock synchronization, then the system in other devices also have the Word clock. Connect the sound mixer digital output of stereo recording opportunities through their S/PDIF and Toslink AES-EBU or interface receives the correct clock. Like external a/d converter and CD player so digital source requires a separate Word clock output, typically connected to a digital mixer in one word clock output interface (usually BNC interface). Remind everyone in the actual operation needs some attention. Not all DAT devices are able to playback via the digital input clock settings, and very few CD player will be equipped with an external Word clock input. DAT test approach is this: the playback of a sound recording or musical notes, at the same time listen to have occasionally beat ticking sound or — if not, explains DAT's clock is accurate. (You can enter numbers separated again, you should occasionally hear the law of rhythm sound). If you do not have to carry out external clock of the CD player, don't take it as a control system clock reference (so you can avoid this problem). Most home and semi-professional CD player's clock are not too are relatively stable and not too accurate. Although the use of quality managed more plausible, but if you use 250 pounds of CD player as a thousand pounds of digital audio recording device, you may reference the clock appears in some trouble. There are two possible ways to solve the problem of the CD. But the two approaches are required to purchase a sample rate converter, it can from the device clock synchronization, from a free run of the CD player offers a result on the exact timing of the data, or CD player's analog output to connect to the analog inputs on the mixing console (or a control Word clock as a reference for the external analog to digital converters). You can also connect the simulation as a "universal sample rate converter", because modern analog to digital and digital-to-analog converter of quality are very good, so the simulation is the fastest of the path, the simplest and cheapest solution — if you don't tell anyone, then no one will know it is not a number. If you want a digital source to speed processing, or tune into a common sample rates, so you might use other skills. When you use a digital multi-track machine control clock source, you might think the result is getting better and better, in fact, from the perfect are far worse. If there is no external clock, you may need to record continuously select clock again between devices, while mixing constantly choose between multiple Rails Machine clock, this approach might make the debugging process becomes very complex. Even if you are ready to put up with this kind of confusing, you should also take into account due to instability of the clock jitter problems arising. With a built-in clock, the sampling frequency in 16 bit or more, and you can fully meet "no dithering" operation of digital devices is rare.