DTS, AAC, MP3, WMA codec
In modern conditions, in the digital age, sound transmission occurs digitally. The sound file can be transferred in an uncompressed state, but in this case the volume of the digital file will be very large. To reduce the amount of information transmitted, various codecs were invented. The original audio file is compressed using the developed algorithm. A device that plays audio decodes a compressed file and plays sound. The procedure for encoding and decoding an audio file is prescribed in the algorithms developed by various companies. The most common codecs are DTS, ACC, MP3, WMA. These codecs compete with each other using slightly different coding algorithms, so the codec has certain disadvantages. The popularity of codecs plays a large role in whether device manufacturers support the corresponding codecs.
MP3 - compression codec, quite common is supported by almost all devices, the lack of quality loss in compression, but about 70% of people do not will distinguish the difference between the original file or compressed codec MP3.
WMA - codec developed by Microsoft as an alternative to MP3, protected and licensed codec can support copy protection.
ACC - compression codec developed by Apple as an alternative to MP3, as well as to protect the audio files from the copy downloaded from the iTunes store at this time is the standard codec compression for many such resources YouTube, PlayStation 3.
DTS - codec for digital cinema and home theater, unlike previous is that it was developed initially for sound support 5.1 and 7.1 analogue of this codec Dolby Digital codec.
Dolby Digital codec
Dolby Digital - codec, and a system designed to create surround sound in cinemas in the era of digital audio files 1991. It supports 5.1 sound in a subsequent improvement of the system and began to support 7.1 sound. DTS analogy.
What the viewer can experience discomfort
When watching video on an HD television quality and with the support of the DTS sound track, if your TV does not support this format, you will not hear the sound on the TV. But to tell the truth as a rule can be maintained and other audio standard, there may be several audio tracks, is another question if the TV supports their choice.
Just need to pay attention to the audio codec. But if we take the example Philips PFL4208T it does not support Dolby Digital and DTS.