Operating instructions

3-58
OPERATION ORBAN MODEL 9400
Sync
determines if the sample rate appearing at a given AES3 output is synced to
the 9400’s internal clock or to a signal appearing at its digital input.
If there is no sync signal detected at the digital input, the AES3 output will always
sync to the 9400’s internal clock.
Format
determines if a given AES3 output format follows the professional AES3 or
consumer SPDIF standard.
We expect that AES will be appropriate for almost all users, but some consumer
sound cards may require SPDIF.
Stereo/Mono Mode
St./Mono
(“HD Output Stereo/Mono Mode”) determines if the digital-channel
processing will be fed by the normal stereo output of the Stereo Enhancer / AGC
front end or by a mono feed taken from the front end’s left channel, right channel,
or sum of left and right channels. In all mono modes, an identical signal appears on
both the left and right channels of any output configured to emit the digital radio
processed signal.
The 9400 does not set the AES3 stereo/mono status bits to reflect the setting of this
control. The AES3 status bits appearing at the digital radio output are always set
“stereo” even when the two audio channels carry identical mono signals.
Digital Radio Operating Controls
The tables below summarize the controls exclusive to the digital radio processing
chain. Note that many of these controls share the same names as controls in the
analog AM processing chain. The digital radio controls are located on the HD AM
Multiband Controls
Intermed. Name Advanced Name Range
--- HD Multiband Drive 0 ... 25
--- (see MB Attack/Rel screen) Slow, Slow2, Med, Med2, MFast,
MFast2, Fast
--- HD Gate Thres Off, –44 ... –15 dB
--- HD Down Expand Off, –6.0 … 12.0 dB
--- (see Band Mix screen) 0 ... 100 %
--- (see Band Mix screen) 0 ... 100 %
--- (see Band Mix screen) 0 … 100 %
--- (see Band Mix screen) 0 ... 100 %
--- (see Band Mix screen) 0 ... 100 %
--- HD B1 Compression Threshold –16.00 … 0.00, Off
--- HD B2 Compression Threshold –16.00 … 0.00, Off
--- HD B3 Compression Threshold –16.00 … 0.00, Off
--- HD B4 Compression Threshold –16.00 … 0.00, Off
--- HD B5 Compression Threshold –16.00 … +10.00, Off
--- HD B1/B2 Xover 100. 200 Hz
Table 3-12: Digital Radio Multiband Controls