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Selecting Audio Settings for a Non-Contour DVR Cable Box

Last Updated: Mon, 31 Oct 2016 > Related Articles

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Learn to change your audio settings.



Press the SETTINGS button on the remote, then press the A button.


Use the arrow buttons to scroll to the Audio/Video preference and press SELECT.


Highlight the Audio Digital Output option and press SELECT.


Highlight either Dolby Digital, Two Channel Only, or HDMI and press SELECT.
See Audio Settings Explained below.


Press EXIT.

Audio Settings Explained

There are 3 Audio settings to choose from.

  • Two Channel Only
  • Dolby Digital
  • HDMI
    : This option appears only if the DVR cable box is connected to your system using the HDMI cable.

Select one of the following.

  • Dolby Digital - If you have a TV or unit that can receive and decode Dolby Digital AC3 surround sound, select this setting. Use either the Digital Audio, SP/DIF, or Optical Audio port on the back of the DVR.
  • Two Channel Only - If you want Left and Right (L / R) stereo or 2-channel Prologic digital audio from an RCA Digital Audio or Optical port.
  • HDMI - If the DVR is connected to the TV using the HDMI cable. HDMI delivers digital stereo. Note: If you keep the HDMI connected, you can still set up either the Two Channel Only RCA / Optical audio cables and setting, or the Dolby Digital RCA / Optical cables and setting. When set up, the Two Channel Only or Dolby Digital cable connections and Audio setting simply disable the audio portion of the HDMI stream.

RCA and Optical Audio OUT Ports on a Cable Box

The image below shows the back of a cable box. The red boxes show the RCA and Optical Audio Out connections.

On the back of the box are the following ports.

  • Three sets of stereo L / R (Left / Right) audio out ports - They use audio cable connectors called RCA.
  • One Digital Audio Out port - It uses a special digital coax cable with an RCA type plug.
  • One Optical Audio Out port - It uses an optical audio digital cable and connector.

highlights cable outputs

  • The ports are grouped.
  • The first column labeled ARCHIVE has three ports below it: Video, Left (L) and Right (R). Together these are a set.
  • The next section, labeled OUT 1, has nine ports under it. The Video port could also use the other audio L / R or Digital Audio ports in the section. The HDTV (Y /Pb / Pr) video could use any of the audio ports in the section.
  • The Optical Audio Out port can be used with either the Video or Y / PB / Pr ports in the OUT 1 box.

Follow the steps below for customers with Motorola video equipment.

These instructions show you how to select the following four audio settings: Volume Level, Analog Output, Digital Output, and Dynamic Range.

These steps work with cable box that is providing DVR service, not a standard- or HD-only cable box.


To locate the audio settings follow these steps.

  1. Press the SETTINGS button, then the A button.
  2. Scroll to the Audio / Video preference and press SELECT.
  3. Scroll to Audio Settings.
    Result: Your current settings are displayed to the right.

In the following image, see the current settings.

  • Variable (for the Volume Level)
  • Stereo (for the Analog Output)
  • Dolby Digital (for the Digital Output)
  • Wide (for the Dynamic Range)


To locate settings follow these steps.

  1. After highlighting Audio Settings in step 1, press SELECT. The Settings column displays.


  1. Press SELECT. The Options column displays.

  1. Select one of the following.
    • Variable - If you use the remote control to adjust television volume
    • Fixed - If you control your television volume through a separate stereo or surround sound receiver
  1. Scroll to Audio Output. This setting lets you adjust the audio output delivered to your television while watching analog television. Select one of the following options.
    • Mono
    • Stereo (Most television programs today are available in stereo.)
    • Surround sound (Surround sound encompasses a range of techniques for
      enriching sound quality via additional speakers. Select this option if you
      have surround sound system or if your television has surround sound
      speakers built-in.)
  1. Scroll to Digital Output. This setting lets you adjust the audio output delivered to your television while watching digital television. Select one of the following options.
    • Pulse Code Modulated (PCM) -This is the default format of digital output.
    • Dolby Digital - If you have a unit that can receive and decode Dolby Digital
      output, use this option.
  1. Scroll to Dynamic Range. This setting adjusts the audio spectrum for digital programming. Dynamic Range refers to the difference between the highest audio peaks and the
    lowest ones. Action movies, for instance, will use the full dynamic range while news programs will not. The Dynamic Range preference lets you control the volume of the high audio peaks. Select one of the following options.
    • Wide  - Plays the entire audio dynamic range, including and highest and
      lowest sounds. This setting is appropriate for audio enthusiasts.
    • Medium - Slightly lowers the higher volumes.
    • Narrow - Dramatically lowers the higher volumes.
  1. Press the EXIT button.

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