TANDBERG E5714 DSNG Voyager, Reference Manual

Page: 143 / 314

Operating the Equipment Locally — Audio Menu: Dolby Digital (AC-3) Menu
Reference Guide: E57xx DSNG and DENG Voyager Encoder Page 4-65
ST.RE.E10076.3
Production Info Option
This option indicates whether the Mixing Level and Room Type parameters
exist within the bit-stream.
Mixing Level Option
This option is only available if the Production Info option is set to On. This
parameter indicates the acoustic sound pressure level of the dialogue level
during the final audio mixing session. This makes it possible for the
program to be replayed at the same loudness, or at a known difference
from the original. Refer to ATSC Doc. A52 for further details.
Table 4.56: Mixing Level Options
Selected Option Description
0 dB to 31 dB Mixing levels between 0 dB to 31 dB.
Room Type Option
This option is only available if the Production Info option is set to On. This
parameter indicates the type and calibration of the mixing room used for
the final audio mixing session. Refer to ATSC Doc. A52 for further details.
Table 4.57: Room Type Options
Selected Option Description
Not Indicated
Small, Flat Mon Type and calibration of the mixing room used
Large, X Curve Mon for the final audio mixing session.
Copyright Option
This controls the Copyright flag in the bit-stream. If set to On the
bit-stream is shown to be protected by copyright.
Original Option
This controls the setting of the Original flag in the bit-stream. If set to On
the bit-stream will be signalled as an original, if set to Off the bit-stream
will be signalled as a copy of an original bit-stream.
Dynamic Range Option
The dynamic range of audio material can vary according to its origin. This
function determines which compression profile is applied to the encoding
process.
The dynamic range compression profile determines the characteristic curve
of the dynamic range compression algorithm (each profile has its own
boost, null-band and cut parameters).