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3.0 dB
1.5 dB
0.0 dB
-1.5 dB
-3.0 dB
-4.5 dB
-6.0 dB
Mute
6.31.2.16. Dolby Surround EX Encoding Control
This control allows the user to author the Surround EX Control metadata for the Dolby bit-stream. This
parameter is used to identify the encoded audio as material encoded in Surround EXTM. This parameter
is only used if the encoded audio has two Surround channels. An amplifier or receiver with Dolby Digital
Surround EX decoding can use this parameter as a flag to switch the decoding on or off automatically.
The behavior is similar to that of the Dolby Surround Mode parameter. The Dolby Surround EX Control
drop down menu provides the following options:
Not Indicated
Not Dolby Surround Encoded
Dolby Surround Encoded
6.31.2.17. DC Filter Control
This control allows the user to author the DC Filter Control metadata for the Dolby bit-stream. This
parameter determines whether a DC-blocking 3 Hz high-pass filter is applied to the main input channels of
a Dolby Digital encoder prior to encoding. This parameter is not carried to the consumer decoder. It is
used to remove DC offsets in the program audio and would only be switched off in exceptional
circumstances. The DC Filter Control drop down menu provides the following options:
Disable
Enable
7812UDXD Series 3G/HD Up/Down/Cross Converter with Simultaneous Dual Format Outputs and AES I/O
3.0 dB level shift applied to the Surround channels
1.5 dB level shift applied to the Surround channels
0.0 dB level shift applied to the Surround channels
-1.5 dB level shift applied to the Surround channels
-3.0 dB level shift applied to the Surround channels
-4.5 dB level shift applied to the Surround channels
-6.0 dB level shift applied to the Surround channels
-999 dB level shift applied to the Surround channels
Not Indicated
Not Surround EX
Dolby Surround EX
Filter is disabled.
Filter is enabled.
Revision 1.1.1
7800/7700 MultiFrame Manual
Page - 105
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