Surcode for Dolby E Decoder manual - Herzlich .SurCode for Dolby E Decoder ... Dolby E is used to

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  • Decoder Plug-In

    USER MANUAL

  • 1 Introduction..................................................................................................................12 Main Screen..................................................................................................................2

    2.1 Program Configuration......................................................................................................... 22.2 File-based Operation ............................................................................................................ 42.3 Metadata ............................................................................................................................... 52.4 Active Channel Selection ..................................................................................................... 52.5 Output Metering ................................................................................................................... 62.6 Solo / Mute ........................................................................................................................... 72.7 Settings ................................................................................................................................. 8

    2.7.1 Program Output Channel Mapping .............................................................................. 82.8 Timecode ............................................................................................................................ 102.9 Metadata File ...................................................................................................................... 10

    3 Using the Decoder in Pro Tools ...............................................................................133.1 Decoding from Track and Live Input................................................................................. 133.2 Monitoring 5.1 + 2 Programs ............................................................................................. 14

    4 Using the Decoder in Nuendo...................................................................................215 Appendix A Program Configurations.....................................................................26

  • Introduction

    1 Introduction

    Dolby E is used to transmit audio-for-video from a network center to affiliate stations, where it is decoded into analog or re-encoded into Dolby Digital for rebroadcast to the consumer.

    The Dolby E data takes the space of a stereo pair of digital audio, at 48 kHz. Dolby E contains up to 8 channels which can be divided in different ways to create up to 24 unique channel configura-tions, called Program configurations. Each Program configuration is made of one or more pro-grams, or groups of channels. A program can be a single mono channel, surround sound up to 7.1 channels. A Program configuration can be combinations of Programs such a 5.1 plus stereo. See Appendix A for a complete list of Program configurations.

    This plug-in is available as a file-based-only plug-in. A Dolby E file is selected using a browser inside the plug-in, and it plays in sync with the timeline in the host application. The plug-in decodes it and sends out up to 8 channels of PCM digital audio.

    SurCode for Dolby E Decoder page 1

  • Main Screen

    2 Main ScreenFigure 2-1 shows the Surcode for Dolby E Decoder plug-in.

    Figure 2-1

    2.1 Program Configuration

    The plug-in displays the Program configuration in two ways - - 1) in a text listing at the upper right, and 2) by the graphic grouping of level meters. For example, if the Dolby E stream has two programs, one 5.1 channel program and one stereo program, the text will be displayed as shown in Figure 2-2.

    Figure 2-2

    SurCode for Dolby E Decoder page 2

  • Main Screen

    The meters will be shown in 2 groups - - one group of 6 meters for the 5.1 program, and one group of 2 meters for the stereo program (see Figure 2-3).

    Figure 2-3

    As another example, Figure 2-4 and Figure 2-5 show how four mono programs are displayed.

    Figure 2-4

    SurCode for Dolby E Decoder page 3

  • Main Screen

    Figure 2-5

    2.2 File-based Operation

    For file-based operation, you must select an input file for the Dolby E data. This is done by click-ing on the Browse button under the timecode display (see Figure 2-6).

    Figure 2-6

    The name of the selected file will appear to the left of the Browse button.

    The plug-in will play the Dolby E file in sync with the timecode of your host application.

    SurCode for Dolby E Decoder page 4

  • Main Screen

    2.3 Metadata

    Dolby E streams can contain embedded AC3 metadata. This metadata is available for viewing as tabs on the main screen. There is a numbered tab for each Program in the Dolby E stream. When you click on a numbered tab, the metadata for that program is displayed (see Figure 2-7).

    Figure 2-7

    2.4 Active Channel Selection

    Above each group of level meters is a round button (see Figure 2-8). It appears over the leftmost meter. This is the button that activates each program.

    Figure 2-8

    SurCode for Dolby E Decoder page 5

  • Main Screen

    To make a program active, click on the button. It will turn green to indicate that the program is now active (i.e, that program will now pass decoded audio to the output (see Figure 2-9).

    Figure 2-9

    2.5 Output Metering

    The SurCode for Dolby E plug-in will display one meter for each output channel, and the number of output channels will change depending on the Program configuration. They are grouped to reflect the grouping of channels in the current Program configuration (see section 2.1, Program Configuration).

    The meters will show outgoing audio from decoded Dolby E streams. The meters do not show audio from PCM passthrough.

    A pull-down menu below the solo buttons selects between peak and RMS metering (see Figure 2-10).

    Figure 2-10

    SurCode for Dolby E Decoder page 6

  • Main Screen

    2.6 Solo / Mute

    Under each output meter is one mute button and one solo button (see Figure 2-11).

    Figure 2-11

    When you click on a mute button or a solo button, it turns green to show that it is active.

    When at least one solo button is active, the mute buttons for all of the non-soloed channels will turn green.

    SurCode for Dolby E Decoder page 7

  • Main Screen

    2.7 Settings

    Figure 2-12 shows the Settings tab.

    Figure 2-12

    2.7.1 Program Output Channel Mapping

    The Surcode for Dolby E Decoder plug-in gives you flexibility in assigning Dolby E channels to I/O soundcard output channels. The button under Program determines the channel labels over

    SurCode for Dolby E Decoder page 8

  • Main Screen

    the eight buttons to the right. Clicking on the Program button will present a list of all the Program Configurations available in Dolby E (see Figure 2-13).

    Figure 2-13

    The selected Program Configuration appears on the Program button. The eight buttons to the right now have labels above them which indicate the correct channels for the selected program config-uration. They define how the audio channels will map to the eight outputs of the plug-in. You can change the mapping by clicking on the button under each channel, and choosing a different output for that channel (see Figure 2-14).

    Figure 2-14

    SurCode for Dolby E Decoder page 9

  • Main Screen

    2.8 Timecode

    The embedded timecode in the Dolby E stream is displayed in the upper left corner of the plug-in (see Figure 2-15).

    Figure 2-15

    The button to the right of the timecode display lets you select the timecode display format (see Figure 2-16). Timecode will display the timecode in Hours:Minutes:Seconds:Frames, and Frame Count will display timecode in frames. The button will be labeled with the currently selected format.

    Figure 2-16

    2.9 Metadata File

    The SurCode for Dolby E Decoder can save the metadata out to a file, for later use in Dolby Dig-ital encoding. The metadata can be saved either as a text or xml file, or the metadata can be writ-ten into the header of a .wav file.

    SurCode for Dolby E Decoder page 10

  • Main Screen

    The text listing of metadata can be viewed by clicking on the Meta File tab (see Figure 2-17).

    Figure 2-17

    This metadata listing shows the metadata at the current timecode position in the host application.

    SurCode for Dolby E Decoder page 11

  • Main Screen

    The metadata can be saved by clicking on the Save As button. This brings up the Save dialog (see Figure 2-18).

    Figure 2-18

    The filename extension that you use determines the way that the metadata is stored. If you use a .txt extension, the metadata is stored in a simple text file. If you use a .xml extension, the metadata will be stored as an XML-formatted file. The third option is to select the .wav file that was created by the decoding of the Dolby E file. In this case, the audio in the file is unaffected, but the file is updated to include the metadata. At a later time, if this .wav audio file is encoded into Dolby E or Dolby Digital, the metadata is available to be read by the encoder and thus used in the encoding process.

    SurCode for Dolby E Decoder page 12

  • Using the Decoder in Pro Tools

    3 Using the Decoder in Pro Tools

    3.1 Decoding from Track and Live Input

    In Pro Tools, SurCode for Dolby E Decoder can play an encoded Dolby E stream from a track or from a live input. The decoder will decode from file if an encoded file is open in the decoder, and will decode fro

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