The format isn't true surround, but offers a virtual experience by splitting the signal between 5 or 6 speakers.
DOLBY DIGITAL 5.1 VS DTS PRO
While it's growing, it still isn't supported on all consumer grade receivers like Dolby Digital.ĭTS Neo:6 is DTS's equivalent of Dolby Pro Logic II. You can also get virtual 6.1 support if you have a sixth channel, and your receiver has DTS-ES support.Īlso worth noting is the support for DTS. If you don't own relatively high-end speakers, the difference is negligible, and chances are that you won't be able to tell the difference - even though many claim they can. This is due to the quality of the speakers most of us own.
For the average household, DTS and Dolby Digital will sound roughly the same. Now, that doesn't mean that there's a noticeable difference. That said, DTS is transferred at a higher bitrate than Dolby Digital which leads to less sound degradation from the original studio master. Both feature lossy compression and encoding by the studio, both are decoded by the receiver, and both end up slightly diminishing the quality of audio from the original source. This allows support for 6.1 and 7.1 surround systems.ĭTS shares a lot of commonalities with Dolby Digital.
DOLBY DIGITAL 5.1 VS DTS PLUS
Two variations, Dolby Digital EX and Dolby Digital Plus are mostly the same as Dolby Digital, but with the addition of an independent channel (in the case of Digital EX) or two (for Digital Plus). Netflix compresses the audio feeds as well in order to reduce server demand. As such, the audio is encoded and compressed by the studio in order to fit on the disc, or to conserve bandwidth when broadcast digitally through cable or satellite. It's important to note that Dolby Digital is a lossy format. Each speaker operates independently of the others (if the source is encoded in 5.1 surround) and thus allows for an all-encompassing, true surround sound experience. The technology uses a built-in decoder to decode the signal and separate individual sounds in to one of 5 (front left and right, rear left and right, center channel) independent speakers. This allowed you to place additional speakers above the front left and right channels in order to create more realistic-sounding effects such as rustling tree branches, or rain.ĭolby Digital is the successor to Pro Logic, and came about when 5.1 surround started to become commonplace in households around the world. Pro Logic IIz added a new dimension, height. Pro Logic IIx added the ability to process sound amongst 6 or 7 (6.1 and 7.1) channels depending on your speaker setup.
Just to touch on it briefly, Dolby Pro Logic IIx and IIz are essentially the same as the original Dolby Pro Logic. If you're listening to Spotify, for example the audio is in stereo anyway, so it really is a no harm, no foul situation when you're simply adding more speakers to the mix. Where it is useful is in a strictly audio setting.
DOLBY DIGITAL 5.1 VS DTS MOVIE
While this isn't completely useless, it's certainly not the format I'd choose if I were gaming or watching a movie (although there are typically settings in the audio menu for both). The only variation is amid the sounds coming from the left and the right channels. It still isn't actual surround, as you aren't getting different sounds from each speaker. The technology was fundamentally the same, but with the addition of multi-channel support. Pro Logic II came along later, and added the ability to split this signal amongst 5 speakers and a separate subwoofer.
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Pro Logic decoded the audio from a record, cassette tape or VHS movie and played it back over the two channels with the only variation in sound being left and right. Think 70s-style woodgrain cabinet-type speakers. Typically, the subwoofer was actually built in to the speakers it was designed for. The original format was designed to utilize two channels and sometimes a subwoofer.
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