Dolby Laboratories P/N 91659 - Manual (Page 29)

DolbyRemote Installation and Operation Dolby Digital Parameters
4-13
Audio Bit
Audio Bit allows you to set the audio bit in the output bitstream as either audio or
non-audio, data. Certain AES/EBU inputs may require this to be set to audio before
they will record the encoded bitstream.
Multiplex Mode
Multiplex Mode allows multiple encoded bitstreams to be combined into the main
digital output bitstream. When enabled, an internally encoded or pre-encoded Dolby
Digital bitstream is multiplexed with other pre-encoded bitstreams contained within
the reference-input signal.
The reference input signal is used as the reference bitstream for the multiplexing
operation. The resulting output bitstream will be a copy of the reference bitstream
with the internally encoded or passed-through bitstream added to it.
When Multiplex Mode is active, the DP567/9 overwrites the contents of the channel
selected by the Output format. If the reference input contains a PCM signal, the
DP567/9 overwrites the selected output channel with the internally encoded or pre-
encoded bitstream but passes through the reference PCM signal on the opposite
channel without modification.
Autodetect and Pass Through modes are allowed when Multiplex Mode is active.
The following options should be selected in order to enable Multiplex Mode:
•
The Reference Input must be selected as the Clock Source.
•
Time Code Control must be disabled.
•
The Output format must be set to either Pro 16-bit Ch 1 or Pro 16-bit Ch 2.
•
Any bitstreams detected in the Reference Input must have been encoded in
the Pro 16-bit mode, and cannot be present in the same channel selected by
the output format.
Include Time Code Packets
Include Time Code Packets determines whether the encoded output bitstream
contains the associated time code information packets.
4.5.3 Input Subcode Status Bits
Input Subcode Status Bits show the format, sample rate, emphasis and audio bit as
indicated in the subcode of the digital input signal.
4.5.4 Test Tone Generation
Test Tone activates an internally generated test signal as the input to the encoding
process rather than the currently selected input signal. Enabling the Test Tone mode