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Dolby Pro Logic is a surround sound processing technology developed by Dolby Laboratories, designed to decode soundtracks encoded with Dolby Surround. The terms Dolby Stereo and LtRt ( Left Total , Right Total ) are also used to describe soundtracks that are encoded using this technique.
It uses five full-bandwidth channels and one low-frequency effects channel (the "point one"). [2] Dolby Digital, Dolby Pro Logic II, DTS, SDDS, and THX are all common 5.1 systems. 5.1 is also the standard surround sound audio component of digital broadcast and music. [3]
Height channels are audio channels in surround sound multichannel audio. Height channels are located above the listening area and increase the sound field beyond the horizontal plane. Two systems that use height channels, Dolby Pro Logic IIz and DTS Neo:X, which matrixes a front left and front right height out of the front left and front right ...
Dolby Surround, Dolby Pro Logic, Dolby Pro Logic II, Dolby Pro Logic IIx, and Dolby Pro Logic IIz: these decoders expand sound to a greater number of channels. All can decode surround sound that has been matrixed into two channels; some can expand surround sound to a greater number of speakers than the original source material.
Dolby Pro Logic – Reference active 2:4 matrix decoding system used on Dolby Stereo soundtracks and Dolby Surround [after 1987] Dolby TrueHD – lossless codec for HD DVD and Blu-ray Disc; Dolby E – allows 6 to 8 channels of audio to be compressed into an AES3 digital audio stream; DTS (sound system) – formerly Digital Theater Systems ...
DTS Headphone:X is a spatial audio technology, sometimes referred to as DTS Headphone:X "v2.0" or even "v2.0 7.1", [38] if the technology is to be licensed out to companies and not implemented by DTS themselves (through 1st party applications such as DTS Sound Unbound and others), where usually on non-PC devices such as video game consoles can ...
Dolby Surround (1982) was the first home audio system to use a rear channel. It and its successor, Dolby Pro Logic (1987), used a single rear surround channel, but often using two speakers connected in anti-phase or a dipole radiator, as shown in the speaker configuration diagram to the right in gray.
These are Dolby Digital EX and DTS ES. Dolby introduced Dolby Pro Logic II to allow stereo sources to play back as if they were encoded in surround sound. DTS introduced a similar technology, Neo:6. These decoders have become common on most current receivers. As the number of playback channels was increased on receivers, other decoders have ...
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