I have a laptop with Windows 7 x64 and a Sound Blaster X-Fi Surround 5.1 Pro. I connect the HDMI output of the notebook to my LCD-TV and the external soundcard to my home-theater receiver through an optical audio cable (S/PDIF).
I have no problems viewing .mkv videos with 6 channels DTS or Dolby Digital. But this file is a .mp4 with AAC 6 Channels.
The problem is that I only get 2 channels/stereo in my receiver (it shows PCM 48 and only left and right speakers are shown in the display). When I get the 6 channels, all the speakers are shown in the display and also it says DTS or Dolby Digital.
Any idea how to make it work? I don't mind installing another player or other external codec to make it work.
Here's the MediaInfo shown by MPC-HC.
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 2.00 GiB
Duration : 2h 5mn
Overall bit rate : 2 278 Kbps
Encoded date : UTC 2010-01-23 21:34:19
Tagged date : UTC 2010-01-23 21:34:19
Writing application : Yamb 2.1.0.0 [http://yamb.unite-video.com]
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : [email protected]
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 2h 5mn
Bit rate : 1 951 Kbps
Maximum bit rate : 9 358 Kbps
Width : 1 280 pixels
Height : 544 pixels
Display aspect ratio : 2.35:1
Frame rate mode : Constant
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.117
Stream size : 1.71 GiB (85%)
Writing library : x264 core 67 r1145bm d2e1e1c
Encoding settings : cabac=1 / ref=4 / deblock=1:-3:0 / analyse=0x3:0x133 / me=umh / subme=7 / psy_rd=0.0:0.0 / mixed_ref=1 / me_range=32 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=2 / deadzone=21,11 / chroma_qp_offset=0 / threads=2 / thread_queue=2 / nr=0 / decimate=1 / mbaff=0 / bframes=3 / b_pyramid=1 / b_adapt=2 / b_bias=0 / direct=3 / wpredb=1 / keyint=250 / keyint_min=25 / scenecut=40 / rc=2pass / bitrate=1951 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:1.00
Encoded date : UTC 2010-01-23 21:34:19
Tagged date : UTC 2010-01-23 21:37:59
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 2h 5mn
Bit rate mode : Variable
Bit rate : 327 Kbps
Maximum bit rate : 444 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 294 MiB (14%)
Encoded date : UTC 2010-01-23 21:37:12
Tagged date : UTC 2010-01-23 21:37:59