Specifications

5.1-Channel Production Guidelines Getting Started
2-5
allow the user to choose full or reduced dynamic range when listening to a Dolby
Digital multichannel soundtrack. When downmixing is in use, overload protection is
applied automatically. The DP562 has the capability to monitor the dynamic range
compression information encoded into the Dolby Digital bitstream. For further
information on Dynamic Range Control (DRC), please consult the Dolby Digital
Professional Encoding Manual.
Example: Selecting Line from the Dynamic Compression section implements both
dynamic range compression and Dialog Normalization. This would simulate
consumer listening conditions such as late night viewing of programs with a wide
dynamic range or dynamic range compression required during downmixing. RF
mode implements dynamic range compression, overload protection, and dialog
normalization to simulate the case when the audio signal must follow an RF
remodulation path for playback or for late night listening, when the least amount of
dynamic range (lower signal peaks relative to dialogue level) is desired. Custom
mode offers the same options for monitoring dynamic range compression as Line
along with the ability to defeat Dialog Normalization (consumer products do not offer
this mode). Caution must be used however. Depending upon how Custom mode is
set up, it may not represent either the level balance or dynamic range heard in a
consumer decoder. None is strictly a professional mode that defeats both dynamic
range compression and Dialog Normalization. This mode (None) is used to hear the
full level and dynamics in the program material being encoded. It is never allowed in
a consumer product and may not represent either the level balance or dynamic range
heard in a consumer decoder. Encoding judgments based on this compression mode
should not be made.