Specifications

Standards and Practices for Authoring Dolby
®
Digital and Dolby E Bitstreams
13
L/R, C/LFE
stems to
DP-570
DP570 Multichannel Audio Tool
Console
solo bus
Digital audio router
output: L/R,C/LFE, Ls/Rs
Lt/Rt output
to Ls/Rs input
through A/D
Metadata
PC running
Dolby Recorder application
DP569 Dolby Digital Encoder
Dolby Digital
output
Timecode
0101
Ls/Rs analog
output for
EX decoding
EX-DU4 Dolby EX Surround Decoder
Ls/Bs/Rs
stems to
SEU-4EX
DP562 Dolby Digital Decoder
For file confidence monitoring
EX-EU4 Dolby EX Surround Encoder
Emulator out to
amps/monitors
Figure 4 Surround EX Encoding with DP570/DP569/EX-EU4 and Dolby Recorder
As in the previous example, the console master functions are still active and the
DP570 provides dim and mute functions for audio production.
The mixed “6.1” stems from the console are separated, and the surround channels (Ls,
Bs, Rs) are sent to the EX-EU4 while the front channels (L, R, C, LFE) are sent
directly to the DP570 (appropriate A/D or D/A conversion is implied). After encoding
the three surround channels in real time as analog audio, the Lt/Rt output of the EX-
EU4 is sent to the Ls/Rs inputs on the DP570 after A/D conversion. When the EX
button is pressed on the DP570, the DP570 performs a Pro Logic decode on the Ls/Rs
inputs and sends the decoded signals to the appropriate speaker channels for
production monitoring.
Standard coding delays are present within the DP569 Dolby Digital Encoder, and
standard latencies are present during confidence checking through the DP562 decoder.
In this example, the analog outputs of the DP562 are used to relay the Ls/Rs channels
to the EX-DU4 Surround EX Decoder.
5 DTV Authoring Overview
5.1 Metadata in Master Control
Monitoring the effects of metadata on program content in a master control situation
can be simply achieved through the use of the DP570.