Pioneer VSX-26TX manual Techno Tidbits & Problem-solving, Dolby Digital, Dolby Pro Logic, Surround

Techno Tidbits & Problem-solving

DTS

DTS has been adopted as a sound recording format in the latest movie theaters since the release of “JURASSIC PARK” in 1993, and has a good reputation for high quality sound and dynamic surround effects.

In this system, 6 channels of digital sound are recorded on CD-ROM, rather than on the film. DTS adopts a simultaneous playback format. With a low rate of compression of sound signals and a high rate of transmittance, a higher sound quality format is produced. Also, unlike the process of recording digital sounds on film directly, the only components required are a CD-ROM player as might be used with a personal computer and a DTS processor, and therefore less investment is required than with other formats. For this reason, the format is being introduced in more and more movie theaters, and is being adopted in home movie software (DVD, LD) and music software (5.1 channel CD).

More than 11,000 movie theaters around the world have adopted the DTS format, which is now the most popular digital format for movie theaters, especially in U.S.A, Europe, and Asia.

	Dolby Digital		DTS		Dolby Pro Logic
					Surround
No. of recorded channels	5.1 channels (Max.)		6 channels (Max.)		2 channels
No. of playback channels	5.1 channels (Max.)		6 channels (Max.)		4 channels
Playback channel structure	Front Left, Front Right,		Front Left, Front Right,		Front Left, Front Right,
	Center, Surround Left,		Center, Surround Left,		Center, Surround
	Surround Right, Sub Woofer		Surround Right, Sub Woofer
Sound processing	Digital discrete processing		Digital discrete processing		Analog matrix processing
Rear (Surround) high	20,000 Hz		20,000 Hz		7,000 Hz
frequency playback limit
Other	•	5.1 completely	•	6 completely independent
		independent channels		channels
	•	High dynamic range	• High dynamic range
	• Stable position, high phase		•	Stable position, high phase
		characteristics, and		characteristics, and
		advanced surround effects		advanced surround effects
		reproduction		reproduction
	•	High efficiency	•	Low compression rate
		(Compression rate of about		(about one-fourth), high
		one-tenth)		quality sound

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