Ultimate Studio Home Theatre

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Sources of Sound signal

Earlier, while the only analog input sources existed (LPs, cassettes), in their output was only enhanced form of the initial signal. After that the signal was increased once more with this type of amplifiers and that kind of signal arrived to the speakers. In the digital age, this process is slightly more complex. It's necessary to read information from a digital medium, and then to transform the system of zeros and ones into analog form. And these are two separate processes. For this purpose it is necessary to obtain the device, at which both of these processes can work simultaneously, or two separate devices: one for reading signals from the carrier, the other for decoding in analog form. The first device is commonly called to as transport and the second is DAC (digital analog converter). Transportation converts the digital signal from the form, which has been recorded on the disk, to a form that is adapted for DAC.

Transport

For transport can be used any of home CD or DVD players that have digital audio output S/PDIF (coaxial, TOSLINK). All studio DAC, except these outputs, have a special studio interface AES/EBU, which differs in that it does not require synchronization during the work, it does not need sync impulse generator. At home devices interface AES/EBU does not exist, but when using good quality players it is also not needed to use a sync impulse generator. Mutual function, transport + DAC, all players can handle, but only if they have a good quality output audio signal. If midfield monitors are used, the quality of the reproduction will be limited by the quality of the ones built into the DAC player which quality is always lower than quality of external DAC devices. Players are universal devices and asking a high quality of them is pointless. Their basic function is to transport. But isn’t it all is as smooth as it looks. Raw digital signal can be of low quality at cheap players, in which the jitter effect occurs due to the poor synchronization or other problems. For this reason you shouldn’t buy cheap players. But studio CD and DVD players are also not the solution. They are used only to make the film visible as most viewers will see it on their middle static equipment and on supporting new audio formats, (SACD, DVD-Audio) let us not talk about.

DAC

External studio DAC is optional attribute for studios. They are used only for the maximum utilization of quality midfield monitors, so there is no need for the external DAC devices, even when it comes to quality two-way acoustic systems. Good sound card or DVD player is enough. Quality DAC devices on the market are a rarity, there are only DCS, JMF and MSB, and that's it, almost.

Personal computer

It is worth to mention the obligatory attribute of any studio - the computer. It is device used for storing and processing all recordings. Especially interesting is that if you have a professional sound card of 150-200 Euros, it can be easily connected to most expensive two-way monitors, and if you have a card of 500-750 Euros you can connect the midfield monitors. From sound cards sound goes to speakers in most studios and all with unlimited possibilities: you can listen to audio and video files of all formats, CD and DVD directly from the Internet, a hard disk or local network. It is not necessary to have only legal items (because pirate he cannot read) and set aside a place for such a device. If you want to get a maximum from midfield monitor with help of superior external DAC, then the computer can easily be converted to transport incorporating the real digital sound cards.

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Basics of studio sound reproduction

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