Adtec digital mediaHUB-HD Pro (version 03.07.19) Manual - Manual (Page 52)

The Audio Tab
The Audio Tab allows precision control over the Audio performance of the mediaHUB HD Pro.
Screenshot (reduced for clarity) :
Controls:
Control Function Options API Command
Sampling
Frequency
determines sample frequency for the unit; all audio channels will
sample on the same frequency ;defines the number of samples per
second taken from a continuous signal to make a discrete signal 32000
44100
48000
*.ECMD ASF [freq]
SDI Audio
Group
sets the SDI audio group number (1-4) per SMPTE -272M
1
2
3
4
*.ECMD AGN
[group #]
Mode
sets the unit to either use the on-board DSP's to perform audio
compression (encode), or accept compressed Dolby-type bitstreams
at the AES input and merge them into the transport
stream (passthrough),or the secondary audio can be set to off
(*.ecmd SAS)
Encode = 0
Passthrough =
1
*.ECMD AMO
[mode][type][rate]
Type
selects Dolby Digital or MPEG 1 Layer 2 as the audio type in Encode
Mode.
In Passthrough Mode, unit defaults to Dolby E / 5.1 / 2.0 Type.
Dolby Digital
AC3 = 0
MPEG 1 Layer
2 =2
Linear PCM/E2
= 3
*.ECMD AMO
[mode][type][rate]
Rate
define the rate in Encode Mode. When in Passthrough Mode, the rate
is handled by the unit.
text field;
user-defined
64-640
kBits/sec avail
*.ECMD AMO
[mode][type][rate]
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
Audio Input
selects the type of incoming audio signal to be encoded. Available on
in Encode Mode. Passthrough Mode uses AES
Analog = 0
SDI = 1
AES = 3
*ECMD AIN [type]
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