[MPlayer-users] Low voice with 6 channel DTS and libdca

[deepak]

I tested it on Opteron 165/Dual core and mplayer 64 bit and 5.1 sound. 
Doesn't work, getting only 2 front channels.
Totem-xine plays it correctly.

Giacomo Comes wrote:
> On Tue, Sep 18, 2007 at 01:29:34PM +0000, amadeo wrote:
>   
>> I've played the sample from
>> http://www.sr.se/laddahem/MultiKanal/Dts/SURROUNDTEST_011212.zip with the not so
>> long ago added libdca decoder, which is the default DTS decoder now in MPlayer,
>> and noticed that after a view seconds of playing the voice get very low and
>> barely understandable. I think this affects only one particular channel because
>> before the voice was fine. Can somebody confirm this? Maybe someone who speaks
>> Swedish can tell which channel it is.
>>
>>
>> Here's my mplayer output in case someone is interested:
>>
>> MPlayer dev-SVN-r24562-4.2.1 (C) 2000-2007 MPlayer Team
>> CPU: AMD Athlon(tm) 64 Processor 3000+ (Family: 15, Model: 31, Stepping: 0)
>> CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
>> Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx SSE SSE2
>> Menu inited: /etc/mplayer/menu.conf
>>
>> Playing SURROUNDTEST_011212.wav.
>>
>> Audio file file format detected.
>> ==========================================================================
>> Opening audio decoder: [libdca] DTS decoding with libdca
>> AUDIO: 44100 Hz, 6 ch, s16le, 1411.2 kbit/33.33% (ratio: 176400->529200)
>> Selected audio codec: [dts] afm: libdca (DTS-libdca)
>> ==========================================================================
>> AO: [alsa] 44100Hz 6ch s16le (2 bytes per sample)
>> Video: no video
>> Starting playback...
>> A:   0.9 (00.8) of 126.0 (02:06.0)  8.2% 95%
>>
>> Exiting... (End of file)
>>     
>
> I can play the sample without problem.
> Both downmixing to two channels and decoding all the six channels
> and listen to each channel separately (I don't have a 6 channels setup).
>
> I don't know Swedish but if you listen in stereo any pay attention
> to the words it is easy to tell which channel you are listening.
> In the sample the order is L C R Ls Rs LFE.
>
> I can test only on 32 bit intel cpu. It would be good if somebody
> else can test on AMD cpu and or 64 bit mplayer.
>
> Ciao
> Giacomo
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