Operation
22
Surround Mode Selection
The AVR5 offers a choice of surround modes. To select a surround mode press the Surround Mode button *(î on the front panel or remote. The choice of which surround mode to use is influenced by the type of program mater- ial being played and the specifics of your listening room setup.
True surround sound processing enables four separate audio signals to be trans- mitted within the left and right channels of a DVD, videocassette, radio or TV broadcast. Through a process known as
matrix encoding a separate center chan- nel signal for dialogue and a surround channel for effects are encoded into the stereo signal. When you see the Dolby Surround, Dolby Stereo, DTS Stereo or other similar logos on a movie or broad- cast this indicates that the program has surround information.
When the program you are listening to has encoded surround information, as shown by one of the logos or brand names described above, select the Pro Logic mode using the Pro Logic button
*on the front panel or the Surround Selector on the remote.
If you are listening to a conventional
Surround Mode Chart
MODE | FEATURES | DELAY TIME RANGE |
|
|
|
DOLBY PRO LOGIC | Dolby Pro Logic is the standard mode for analog surround sound decoding. It uses | 15 ms – 30 ms |
| information encoded in a | Initial Setting = 20 ms |
| 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. |
|
|
|
|
DOLBY 3 STEREO | Dolby 3 Stereo uses the information contained in a surround encoded or | No Surround Channels |
| 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. |
|
|
|
|
THEATER | Theater Surround processing uses matrix surround decoding to simulate a standard | Fixed Delay |
| movie or stage theater. |
|
|
|
|
HALL 1 and HALL 2 | These modes are designed for use with stereo recordings. They provide a | Fixed Delay |
| effect that simulates the complex combination of direct and reflected sounds that |
|
| create the rich reverberant atmosphere of a |
|
| larger concert hall (Hall 2). |
|
|
|
|
STEREO | This mode turns off all surround processing and presents the pure left and right | No Surround Channels |
| channel presentation of two channel stereo programs. |
|
|
|
|