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Date: Fri, 15 Jun 2012 13:25:36 +0200
From: Bernt Hansson <bah@bananmonarki.se>
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To: David Demelier <demelier.david@gmail.com>
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Cc: freebsd-questions@freebsd.org
Subject: Re: No surround sound with Creative SB Live! card
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On 2012-06-15 10:06, David Demelier wrote:
> On 15/06/2012 05:43, Edward M wrote:
>> On 06/14/2012 09:03 AM, David Demelier wrote:
>>> I have an old SB Live! card with a 5.1 speaker set, but i can't get
>>> sound from center and rear speakers with mplayer.
>>>
>>> I'm using the snd_emu10kx driver and when I try to play a DVD I get
>>> sound only through the front speakers (and LFE) like a 2.1
>>>
>>> Adding -channels 6 to the mplayer args does not help.
>>>
>>> Cheers,
>>
>> Sounds like the DVD surround audio is encoded in AC-3 Dolby Digital or
>> DTS. So a decorder is needed.
>>
>
> That's what mplayer says:
>
> ==========================================================================
> Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
> AUDIO: 48000 Hz, 6 ch, s16le, 448.0 kbit/9.72% (ratio: 56000->576000)
> Selected audio codec: [ffac3] afm: ffmpeg (FFmpeg AC-3)
> ==========================================================================
> AO: [oss] 48000Hz 6ch s16le (2 bytes per sample)
>
> What do you mean by "a decoder is needed"?

Have you tried vlc or xine?