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Is there a setting in VLC to change default audio output to 5.1?

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I guess if the source is not in 5.1 you'll have to find software that emulates 5.1 output from a stereo signal. Could be your audio driver can do that. –  slhck Jun 4 '11 at 16:16
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4 Answers 4

up vote 11 down vote accepted

I felt the need to resurrect this as it’s pretty high up on search results and the solution no longer works for v2.0.2—however, I finally found a fix!

  1. Press Ctrl+P to bring up preferences.
  2. At the bottom of the right-hand navigation select the All radio-button under the Show settings area (bottom left of the interface).
  3. Now expand the Audio tree, select Out Modules and select DirectX.
  4. Select your "Output device" and "Speaker configuration" from the drop down menus.
  5. Restart VLC.
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Best answer. This was working for me. –  joctee Oct 8 '12 at 11:46
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This was a bit confusing for me as well. I have 7.1 audio on my system. VLC always defaulted to stereo audio. Then I finally figured it out. You must have your sound cards speaker configuration set to 5.1 or else VLC will not choose the 5.1 track. I thought that 7.1 set for speaker configuration on my sound card would work for anything so the system would play 5.1 or 7.1 if available. But apparently with VLC, and maybe some other programs, your system must match exactly or it will not recognize your settings. This is a feature that the VideoLan team needs to fix. With the advent of 7.1 audio VLC needs to recognize that it can play 5.1 audio on a 7.1 system.

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From vlc --longhelp --advanced:

  --force-dolby-surround {0 (Auto), 1 (On), 2 (Off)}
                             Force detection of Dolby Surround

There's also the respective setting in the GUI version of the settings under "Audio->Effects->Dolby Surround". Is has the options "Auto", "On" and "Off".

From what I understand, it should automatically detect whether the source media is surround sound or not.

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As far as I can tell, this is a setting that changes whether DS/DTS should be used in the audio channel, but not the line configurati on (stereo, left+right, 5.1....) –  Mahriman Jun 11 '11 at 8:40
    
Okay, then this answer is probably not what you're looking for. Sorry! –  Victor Jun 11 '11 at 10:53
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Only if your audio format is dts/dolby digital 5.1, the 5.1 channel could activated in VLC. If the original file is of only stereo type, the 5.1 option will not get highlighted in the above said menu. You try using SURCODE DTS and Gold wave software for converting a stereo file into user defined 5.1 DTS file.

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