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