Adtec digital mediaHUB-HD 422 (version 1.01.10_M_2) Manual - Manual (Page 65)

Audio Inputs 3 and 4
Audio Inputs 3 and 4 are not capable of PASSTHRU MODE; they can only encode MPEG1 Layer 2. They also cannot encode
Dolby Audio. The control options are the same for both inputs.
Screenshot:
Image reduced for clarity.
Controls:
Control Function Options API Command
Audio Mode
sets the unit to either use the on-board DSP's to perform audio
compression (encodeor the secondary audio can be set to off
(*.ecmd SAS)
Encode = 0
*.ECMD AMO
[mode][type][rate]
Audio Input
selects the type of incoming audio signal to be encoded. Available
on in Encode Mode.
Analog = 0
SDI = 1
AES = 3
*ECMD AIN [type]
Type
selects the audio type in Encode Mode.
Linear PCM/E2 is only available with AES inputs, if selected, all
associated specifications will auto-apply.
MPEG 1 Layer
2 =2
Linear PCM/E2 =
3
*.ECMD AMO
[mode][type][rate]
Format
MPEG mode; can be set for either Mono or Stereo. Available if
using Encode Mode and MPEG 1 Layer 2 Type\. 0 = Mono
1= Stereo
*.ECMD MCM
Rate define the rate in Encode Mode.
text field;
user-defined
64-640 kBits/sec
avail
*.ECMD AMO
[mode][type][rate]
Audio Sync
(ms) audio sync offset in milliseconds (ms) with an available range of
-800 ms to +800 ms text field;
user-defined
*.ECMD AUS
Audio Level
volume in decibels (dB); range of -18dB to +8dB in 1dB increments
. Available only in Encode Mode range of -18
through +8
*.ECMD ALV
Language
Descriptor
3 characters available for describing language
text field;
user-defined
*.ECMD LAO
SDI Audio
Matrix
Per SMPTE 272/299M SDI supports embedded audio Groups 1, 2,
3, 4. This device can route channels from 2 Groups concurrently. 1
and 2 or 3 and 4. Each group has 2 channels and each channel is a
stereo pair. Fpr example, Group 1 3/4 can be routed to any of the 4
audio encoders.
Group 1 1/2
Group 1 3/4
Group 2 5/6
Group 2 7/8
*ECMD SMX
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