Orban OPTIMOD-FM 8500S Operating Manual page 11

Digital audio processor
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Two-Band Purist Processing ..................................................................................3-13
Digital Radio Processing........................................................................................3-13
BS.1770 Compliance for Digital Radio .................................................................3-14
Input/Output Delay ...............................................................................................3-14
Basic Modify...........................................................................................................3-15
Advanced Modify ..................................................................................................3-16
Gain Reduction Metering .....................................................................................3-17
To Create or Save a User Preset ............................................................................3-17
Table 3-1: Factory Programming Presets ....................................................................... 3-20
....................................................................................................3-26
Table 3-2: Five-Band Equalization Controls................................................................... 3-28
Table 3-3: Stereo Enhancer Controls.............................................................................. 3-32
............................................................................................................3-32
Table 3-4: AGC Controls.................................................................................................. 3-33
Table 3-5: Clipper Controls ............................................................................................. 3-38
Figure 3-1: 0-100 kHz Baseband Spectrum (Loud-Hot preset)...................................... 3-42
Figure 3-2: 19 kHz Pilot Notch Filter Spectrum (Loud-Hot preset; detail).................... 3-42
The Protection Presets...........................................................................................3-45
Setting Up the Two-Band Structure for Classical Music......................................3-45
Customizing the Settings ......................................................................................3-46
The Two-Band Structure's Setup Controls ...........................................................3-47
Table 3-6: Two-Band Controls ........................................................................................ 3-47
Putting the Five-Band Structure on the Air.........................................................3-51
Customizing the Settings ......................................................................................3-52
Table 3-7: Multiband Controls ....................................................................................... 3-52
Table 3-8: Multiband Controls ....................................................................................... 3-53
Table 3-9: MB Attack / Release Controls ........................................................................ 3-55
Table 3-10: MB Band Mix Controls................................................................................. 3-59
To Override the Speech/Music Detector ........................................................................ 3-63
Delay Difference between HD and FM Outputs .................................................3-66
Table 3-11: HD I/O Setup Controls ................................................................................. 3-66
HD I/O Setup Controls ...........................................................................................3-67
Input/Output > HD Digital Radio screen:....................................................................... 3-67
Digital Output................................................................................................................. 3-68
Unique HD Audio Controls ...................................................................................3-70
Table 3-12: Unique HD Audio Controls (found in HD Distortion page in PC Remote)3-71
MPX Power Meter........................................................................................................... 3-73
Multiplex Power Threshold ............................................................................................ 3-74
Figure 3-3: Multiplex power over 15 minute observation interval with Multiplex power
controller active, measured at the Optimod's composite output ................................ 3-74
Audio Processing and the Multiplex Power Threshold Control ................................... 3-75
About the Multiplex Power Controller's Time Constants ............................................. 3-75
..................................................................................3-15
...............................................................................3-18
...................................................................................3-19
.........................................................................................3-31
................................................................................................3-38
...........................................................................................3-44
............................................................................................3-51
............................................................................3-72
......................................................3-64

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