The Programs:
Surround
Lexicon
Program Parameters cont'd |
|
Auto Azimuth/ | The AUTO AZIMUTH/BAL parameter should be set to ON for films, OFF |
Balance | for music. When it is on, special digital circuits continually monitor the |
| dialog and adjust both the relative level and time offset of the two channels |
| to keep the dialog properly centered. This automatic feature is why the CP- |
| 1 does not have or need a |
| Surround decoding. |
Bass Blend | BASS BLEND takes the low bass from the center, where it is in many film |
| and music mixes, and distributes it instead to the left and right front- |
| channel speakers. Its initial value is 0 in the Stereo Logic program and 6 in |
| Pro Logic. This is valuable because in many video installations the center |
| speaker is smaller than the two main stereo speakers and is, therefore, less |
| capable of handling the lowest frequencies. |
Front Effect/ The essence of the Dolby PRO LOGIC circuit is that dialog, music and sound | |
Rear Effect | effects are dynamically directed to the output channels, a process called |
| steering. The FRONT EFFECT and REAR EFFECT parameters in Stereo |
| Logic allow you to adjust the amount of this steering. Both are preset for |
| their maximum values in PRO LOGIC. In STEREO LOGIC, FRONT |
| EFFECT has a default value of 8, which is equivalent to 6 dB of steering; at |
| this level, central (monaural) sources are reduced in level by 6 dB in the main |
| stereo speakers. With FRONT and REAR EFFECT both set to 0, STEREO |
| LOGIC becomes the equivalent of a simple |
| decoder. If you have no rear speakers, REAR EFFECT should be set to 0. The |
| |
| configuration with no rear channels. (See page 13.) |
Rear Noise Chip | Dolby Surround decoding specifications call for a special form of Dolby B- |
| type noise reduction. Because STEREO LOGIC is also meant for music, the |
| |
| parameter that allows you to turn this Dolby NR circuit off. |
Calibrate | The CALIBRATE mode in Stereo Logic and Pro Logic is for setting up and |
| checking the levels of the channels in |
| covered in the section on Balancing Additional Channels on page 10. |
Set Program Name/ | The procedures for naming a new version of the program (SET PROGRAM |
Memorize Program | NAME) and storing it in one of the User registers (MEMORIZE PROGRAM) |
| are described on page 29. |
Page 28