A DVD To DVD Copier Is Silent On Copying DTS And Dolby Digital
Once upon a time, movies had no sound. Inventors had to solve many problems when films were first invented, before sound could be added to them. Some of the concerns were technical, while others were not. For example, in regards to the latter, people typically enjoyed silent movies! Although the movies themselves were silent, some sort of music in the theatre accompanied them. The main technical problems related to producing sound for film, were creating sound that was loud enough, and matching up the picture and sound. American corporations such as AT&T, RCA, and Warner Brothers can mainly be credited with finding solutions to these problems. When sound was eventually successfully added to films, this not only improved the quality of the movies, but also made the process of filmmaking more complex and challenging. Today, some issues involving sound in movies involve the duplication of movies, such as by a DVD to DVD copier.
In addition to improvements in the visual aspects of films, the audio quality of modern films has increased as well. Furthermore, hardcore film enthusiasts are not simply satisfied with enjoying high quality sound system in the theatre. They want to experience the same audio quality in the privacy of their own homes. Two of the best and most popular sound systems are Surround Sound (DTS) and Dolby Digital. So you may be wondering, when using a DVD to DVD copier, can these two sound systems be duplicated as well?
In short, the answer is “no.” For recording audio, a DVD to DVD copier only has audio inputs that are for analog stereo. This is then encoded into Dolby Digital, containing two channels. The digital audio outputs of DVD to DVD copier or analog stereo outputs can then be used to access the saved audio’s output.
Though a modern DVD to DVD copier cannot record in DTS audio or Dolby Digital 5.1, with special equipment the two channel recording of audio can be processed again into a 6.1 or 5.1 channel sound fields. Nonetheless, keep in mind that that the precision will be inferior to the original DTS; or Dolby Digital 6.1 or 5.1 soundtrack source. Why can these sound systems not be duplicated? Two primary reasons exist. First, one is not permitted to duplicate a soundtrack with multiple channels. Therefore, one cannot use a DVD to DVD copier to create a true clone of a DVD, which would resemble the original disc. Secondly, in theory, one should be unable to duplicate DVDs. In addition, little other 6.1 or 5.1 channel audio exists, to be captured from other sources. Therefore, this is only a marginal need to copy such sound systems. Nonetheless, the situation is altering, with the increase in Dolby Digital 5.1 transmissions via satellite and cable programming. Also, an interesting development is that some manufacturers have implied that they could introduce a type of DVD to DVD copier that has the capacity to record Dolby Digital 5.1. However, such products have not officially appeared on the market yet. Today’s movie sound systems have improved significantly from the days of silent films. Though a modern DVD to DVD copier cannot duplicate Dolby Digital or Surround Sound systems, remember that the goal of adding sound to films was also once only a dream.
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