Specifications

Standards and Practices for Authoring Dolby

Digital and Dolby E Bitstreams

PC running

Dolby Recorder application

DP569 Dolby Digital

Encoder

Dolby Digital

output

Mixed audio stems

to DP570

DP570 Multichannel

Audio Tool

Audio router output Metadata

Console

solo bus

Timecode

DP562 Dolby Digital

Decoder

For file confidence monitoring

Emulator out to

amps/monitors

Figure 3 DP570/DP569 with Dolby Recorder

This configuration provides several key features.

1. The DP570 Multichannel Audio Tool provides the ability to monitor the effects of

metadata in real time, without the delays found in an encode/decode configuration.

This allows audio and picture to remain synchronous while selecting and previewing

various metadata parameter settings.

2. The software remote and graphical user interface (GUI) provide a simple procedure

for the measurement and selection of the Dialogue Normalization (dialnorm)

parameter. As dialnorm is the single most important parameter in the metadata

stream, this procedure helps eliminate the guesswork in setting this important value.

3. The metadata selections made are automatically forwarded to the DP569 encoder,

limiting user input to a single, user-friendly device in the selection and preview of

metadata.

4. The solo bus within the console is still active, and the DP570 provides dim and mute

functions for audio production. Additionally, the DP570 provides a General Purpose

Input/Output (GPI/O) connector for external control of key features within a console-

driven hardware remote control. This allows many controls within the DP570 to be

located close to the engineer and even integrated within the console itself.

4.3 Surround EX Encoding with DP570/DP569/EX-EU4 and Dolby

Recorder

This configuration, a modification of the previous one, prepares, creates, and

monitors a Dolby Digital bitstream encoded in Surround EX

for DVD.