Pioneer VSX-21 Operating Instructions - Page 53

Additional Information 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, not on the film. It adopts a simultaneous playback format. With a low rate of compression of sound signals and a high rate of transmittance, 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. No. of recorded channels No. of playback channels Playback channel structure Sound processing Rear (Surround) high frequency playback limit Other Dolby Digital 5.1 channels (Max.) 5.1 channels (Max.) Front Left, Front Right, Center, Surround Left, Surround Right, Sub Woofer Digital discrete processing 20,000 Hz • 5.1 completely independent channels • High dynamic range • Stable position, high phase characteristics, and advanced surround effects reproduction • High efficiency (Compression rate of about one-tenth) DTS 6 channels (Max.) 6 channels (Max.) Front Left, Front Right, Center, Surround Left, Surround Right, Sub Woofer Digital discrete processing 20,000 Hz Dolby Pro Logic Surround 2 channels 4 channels Front Left, Front Right, Center, Surround Analog matrix processing 7,000 Hz • 6 completely independent channels • High dynamic range • Stable position, high phase characteristics, and advanced surround effects reproduction • Low compression rate (about one-fourth), high quality sound 53