Harman Kardon AVR45 Owners Manual - Page 26

Operation 23 Selection of a surround mode is based on personal taste, as well as the type of program source material being used. For example, motion pictures or TV programs bearing the logo of one of the major surround encoding processes, such as Dolby Surround, DTS† Stereo or UltraStereo†† may be played in either the Dolby Digital, Dolby Pro Logic or Movie Surround depending on the source material. Surround Mode Chart NOTE: Once a program has been encoded with surround information, it retains the surround matrix as long as the program is broadcast in stereo. Thus, movies with surround sound will carry surround information when they are broadcast via conventional TV stations, cable, pay TV and satellite transmission. In addition, a growing number of madefor-television programs, sports broadcasts, radio dramas and music CDs are also recorded in surround sound. You may obtain a list of these programs and discs from the Dolby Laboratories web site at www.dolby.com When a program is not listed as carrying intentional surround information, you may find that Pro Logic or Dolby 3-Stereo modes often deliver enveloping surround presentations through the use of the natural information present in all stereo recordings. However, for stereo, but nonsurround programs, we suggest that you try the Hall 1, Hall 2 or Theater modes. MODE FEATURES DELAY TIME RANGE DOLBY DIGITAL This mode is available only when the source material is encoded with Dolby Digital (AC-3) data. It provides up to five separate main audio channels and a special dedicated Low-Frequency Effects channel. Center: 0 ms - 5 ms Surround: 0 ms - 15 ms DOLBY PRO LOGIC Dolby Pro Logic is the standard mode for analog surround sound decoding. It uses information encoded in a two-channel stereo recording to produce four distinct channels: Left, Center, Right and Surround. Use this mode for accurate reproduction of programs bearing the Dolby Surround, DTS Stereo, UltraStereo or other "Surround" logos. Surround encoded programs include videocassette, DVD and LD movies, TV and cable programs, radio programs and audio CDs. Dolby Pro Logic processing may also be used to provide a pleasing surround effect with some stereophonic source material that does not carry surround encoding. 15 ms - 30 ms Initial Setting = 20 ms DOLBY 3 STEREO Dolby 3 Stereo uses the information contained in a surround encoded or two-channel stereo program to create center channel information. In addition, the information that is normally sent to the rear channel surround speakers is carefully mixed in with the front left and right channels for increased realism. Use this mode when you have a center channel speaker, but no surround speakers. No Surround Channels THEATER Theater Surround processing uses matrix surround decoding to simulate a standard 27.3 ms movie or stage theater. HALL 1 and HALL 2 These modes are designed for use with stereo recordings. They provide a sound-field effect that simulates the complex combination of direct and reflected sounds that create the rich reverberant atmosphere of a medium-sized concert hall (Hall 1) or a larger concert hall (Hall 2). Hall 1 - 41.6 ms Hall 2 - 67.4 ms STEREO This mode turns off all surround processing and presents the pure left and right channel presentation of two channel stereo programs. No Surround Channels