Specifications

5.1-Channel Production Guidelines Preparing the Source Delivery Master
6-5
feeding the Dolby Digital encoder be stable and uninterrupted. Always use the time code
generated from a digital source such as a DA88 or digital VTR. If unsure of the time code
source, it is best to generate clean time code from a synchronizer or use a quality time
code regenerator before routing the time code into the Dolby Digital encoder.
6.5 Documentation
Complete, clear, and accurate documentation should always accompany the source
delivery master used for Dolby Digital encoding. This information is important not
only when the master is in use but also as a reference, once it is archived. Dolby has
created Mix Data and Mastering Information Sheets to facilitate proper documentation
or to use as a guide for creating similar documents. These sheets are available in
Appendix A of this document and on the Dolby website under the Technical
Information heading at
www.dolby.com
. The Mix Data Sheet provides concise
information about the source media to all the engineers on a project. Typically, it will
include information on sampling frequency, bit resolution, time code, track assignment,
titles, and program start and stop times. The Mastering Information Sheet provides
documentation relevant to the mastering engineer or authoring facility on source media,
timing, and encoder settings, as well as general notes.