Dolby Laboratories DolbyRemote DP569, Инструкция по установке и эксплуатации, Страница: 21 / 36

DolbyRemote Installation and Operation Dolby Digital Parameters
4-5
Encoder State
Encoder State displays the status of encoding for the current device. There are three
options for the encoder state:
•
Not Encoding —the user has requested that the unit start encoding, but the
encoder is unable to encode because it is missing a required input signal.
•
Encoding —the unit is encoding
•
Stopped —the user has directed the unit to not encode
4.1.10 Coding Delay
There are displays for both the requested and current coding delay values. The
requested and current values may be different if the unit is unable to provide the
requested delay, based on the value of other inputs.
For example, suppose the clock source is digital input, a DP569 is receiving a 48 kHz
input, and the
Coding Delay is set to 170 ms. In this case, both the requested and the
actual coding delays will be 170 ms. Then the input changes to 44.1 kHz. At 44.1 kHz,
the smallest legal coding delay is 195 ms. The DP569 will switch to a 195ms coding
delay. The actual coding delay will display 195 ms, while the requested coding delay will
continue to display 170 ms.
Current
Current Coding Delay displays the time from the first sample of a particular frame
received by the encoder to the time the first word of the coded output frame appears
in the output bitstream.
Requested
Enter a value for the Coding Delay in milliseconds. Any changes made to the delay
setting will take place immediately by deleting output frames and/or adding gaps to
the output bitstream as necessary. The minimum and maximum delay times depend
on the encoder unit, DP567 or DP569, and the input sampling rate.
Internal/External
Select Internal to specify the amount of coding delay in milliseconds. If External
mode is selected this option is grayed out and the delay is determined from the signal
applied to the TTL delay input.
4.1.11 Unit Name
The unit may be given a name, 16 characters maximum.