3-46
OPERATION ORBAN
MODEL
9400
and peak limiter.
Each chain can be adjusted separately. The equalization and five-band compressor
settings are likely to be quite different in the two chains. Except as noted, each con-
trol described in this section is duplicated so there is one control for the analog sec-
tion and one control for the HD AM section.
The crossover frequencies for the bands in the AM analog and HD AM chains are dif-
ferent. In the AM analog chain, the bottom four bands cover 50 – 3000 Hz, while
Band 5 covers 3 kHz to the top of the range set by the 9400’s lowpass filter. In the
HD AM chain, the bottom four bands cover 20 – 6,000 Hz and Band 5 covers 6 – 15
kHz. The analog AM chain therefore concentrates its “automatic re-equalization”
power in the 50 – 3,000 Hz audio bandpass of the typical analog AM radio, while
the HD AM chain covers the much wider bandwidth provided by HD AM.
The HD AM and Advanced Modify controls are accessible only from 9400
PC Remote software.
The tables below summarize the Multiband and Band Mix controls in the dynamics
sections for both analog AM and HD AM.
MB DRIVE
(“Multiband Drive”)
control adjusts the signal level going into the multi-
MB Attack / Release / Threshold
Full Name
Advanced Name
Range
B1 THR
B1 Compression Threshold
–16.0 … 0.0, Off
B2 THR
B2 Compression Threshold
–16.0 … 0.0, Off
B3 THR
B3 Compression Threshold
–16.0 … 0.0, Off
B4 THR
B4 Compression Threshold
–16.0 … 0.0, Off
B5 THR
B5 Compression Threshold
–16.0 … +10.0, Off
---
B1 Attack
4.0 … 50.0 ms, Off
---
B2 Attack
4.0 … 50.0 ms, Off
---
B3 Attack
4.0 … 50.0 ms, Off
---
B4 Attack
4.0 … 50.0 ms, Off
---
B5 Attack
4.0 … 50.0 ms, Off
---
B1 Limiter Attack
0 … 100%
---
B2 Limiter Attack
0 … 100%
---
B3 Limiter Attack
0 … 100%
---
B4 Limiter Attack
0 … 100%
---
B5 Limiter Attack
0 … 100%
---
B1 Delta Release
–6 … 6 [steps with respect to current
---
B2 Delta Release
–6 … 6 MB Release setting]
---
B3 Delta Release
–6 … 6
---
B4 Delta Release
–6 … 6
---
B5 Delta Release
–6 … 6
—
B1MaxDeltGR
0 … 24 dB, Off
—
B2MaxDeltGR
0 … 24 dB, Off
—
B3MaxDeltGR
0 … 24 dB, Off
—
B4MaxDeltGR
0 … 24 dB, Off
—
B5MaxDeltGR
0 … 24 dB, Off
Lookahead
Off, On, Auto
Table 3-8: MB Attack / Release Controls
Summary of Contents for Optimod-AM 9400
Page 1: ...Operating Manual OPTIMOD AM 9400 Digital Audio Processor Version 1 2 Software...
Page 7: ...Operating Manual OPTIMOD AM 9400 Digital Audio Processor Version 1 2 Software...
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Page 261: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 29...
Page 267: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 35 CPU Module...
Page 273: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 41 RS232 BOARD PARTS LOCATOR...
Page 275: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 43 8300 POWER SUPPLY PARTS LOCATOR...
Page 284: ...6 52 TECHNICAL DATA ORBAN MODEL 9400 DSP BOARD PARTS LOCATOR DRAWING 32170 000 14...
Page 292: ...6 60 TECHNICAL DATA ORBAN MODEL 9400 DISPLAY BOARD PARTS LOCATOR...
Page 293: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 61 DISPLAY BOARD...