Ericsson AVP 1000 Reference Manual page 236

Web GUI Control
Table 5.25 Audio Description Service Parameters
Parameter Values
Bit Rate 64
Coding Mode 1/0 (Left – input)
Embedded PCR On, Off
Au Information Cont Off, AU Info
Advanced
Lip Sync Offset -500 to 500 ms
Gain -6 to 6dB
Language A selection of languages from across the world.
Audio Stream Type Main Audio; Clean Effects; Hearing Impaired;
Visual Impaired
MPEG Version MPEG-1; MPEG-2
Copyright Off; On
Original Off; On
De-emphasis Off; 50/15us; CCITT J.17
Action on control track No action; Bit rate saving
loss
Action when silence is
No action; Bit rate saving
detected
Silence Threshold Decibels, -90 to -1, dBFS
Silence Period Time, seconds, 0-300
Note: Automatic Loudness Control functionality requires an AVP/SWO/ALC
Table 5.26 Automatic Loudness Control Parameters
Parameter Values
Operating Mode Off
Measure
Measure + ALC
5-60
license that is not currently available for AVP 2000 and AVP 3000 products.
Description
Bit Rate of the audio stream.
Specifies what channel configuration to use for encoding.
Controls whether PCR is to be embedded in the audio
PES.
Controls the insertion of private data in the adaptation unit
of the audio access units (AU). AU Info is defined in ETSI
TR 101 154. Only AU_PTS is present for audio
Configures a delay to the audio to improve A/V
synchronization.
Sets the gain in dB for the audio stream.
The language of the stream to be signaled in descriptors.
Intended use of the audio.
Standard to be used for the output compressed audio.
Set the copyright bits in the MPEG headers.
Set the original bits in the MPEG headers.
Set de-emphasis as applied to the audio, in the MPEG
headers. Does not apply the appropriate pre-emphasis.
If Bit rate Saving is selected, there shall be no emitted
elementary stream for Audio Description if the control track
is not received.
If Bit rate Saving is selected, there shall be no emitted
elementary stream for Audio Description if silence is
detected on the incoming audio track.
Threshold of incoming audio track, which, if below the
threshold will be determined to be silence.
Duration of silence as determined by the threshold,
needed before Action when Silence is Detected will take
place.
Description
ALC is not in use.
Long and short measurements are taken and displayed in
the status but no audio adjustments are made.
Measurements are taken and corrections are made for
short term peak in audio that are measured 1 LU above
the Target level.
EN/LZT 790 0023/1 R16A