Audio submenu, Embedded group enable, Output source – Sierra Video FRS-181 User Manual
Page 14: Output gain, Output polarity, Tone frequency

Page 14 of 27
FRS-181 Owner’s Manual
• (V 2.1)
Audio Submenu
Menu Structure
Parameter Type
Aud
Embd
Grp1
Enbl
Embedded Group Enable
Ch01-
Ch04
(x4)
Src
Output Source
Gain
Output Gain
Pol
Output Polarity
Grp2
Enbl
Embedded Group Enable
Ch05-
Ch08
(x4)
Src
Output Source
Gain
Output Gain
Pol
Output Polarity
Grp3
Enbl
Embedded Group Enable
Ch09-
Ch12
(x4)
Src
Output Source
Gain
Output Gain
Pol
Output Polarity
Grp4
Enbl
Embedded Group Enable
Ch13-
Ch16
(x4)
Src
Output Source
Gain
Output Gain
Pol
Output Polarity
Tone
TG1-TG4 (x4)
Tone Frequency
Embedded Group Enable
Enables or disables the embedding of a particular embedded audio group. Disabling a group preserves
the settings of the channels belonging to that group.
Output Source
Because the cards audio system functions like a router, each output can be sourced from any input
channel. This parameter lets you choose from the many different sources. Here is an explanation of the
different source names:
Source Name
Description
EmXX
Input embedded audio channel XX (1 through 16)
TgX
Test Generator channel X (1 through 4)
DbX
Dolby Decoded channel X (1 through 8)
DmX
Dolby Mixdown channel X (1 through 2)
Output Gain
The gain of each output is adjustable from +30 dB to –100 dB in 0.1 dB steps. After –100 dB gain is
set to –Inf, which means that output is present, but muted.
Output Polarity
If set to “Norm” output polarity is the same as input polarity, if set to “Inv” the output polarity is
inverted. This can be used to correct polarity errors in the input signals fed to the card.
Tone Frequency
This sets the frequency of the test tone for each of the four tones. Each of the four tones TG1 – TG4
can be set to a different frequency, and are available as audio sources for the embedded or AES audio
outputs. The tones can range from 50Hz to 16kHz.