42PFL7676H does not send sound from '3D from USB' to optical out

[V4Friend]

Hello All,

I have a 42PFL7676H (as I mentioned before) and I want to play 3D movies from USB.
After some experimenting I got that working (found out that the TV is quite picky when it comes to sound and video-formats), but now my MKV's work, with audio AC3.

I have an old amplifier and I have bought an optical-to-electrical converter, to connect the TV to it. That works like a charm, when watching TV or streaming from my PC. However, when I play 3D from USB, the sound only plays on the TV speakers (no sound on optical out).

Can this be a bug? Or is it something I'm missing...

[Toengel]

Hi,

I think your converter does not support all kinds of AC3 streams...

Toengel@Alex

[V4Friend]

I wasn't aware that there were different types...

What type of stream does the TV send, when watching TV (which comes via HDMI 1)?

[Toengel]

Hi,

I think some converters can only convert 44.1 KHz inputs... so check what your converter supports... and post it ;-)

Toengel@Alex

[V4Friend]

I forwarded that question to the supplier...

But forgive if I don't see the point. The 3D movie sound plays fine when I use the TV-speakers. The converter works fine, when the TV gets its input from my digital decoder (via HDMI). Does the TV not output the same signal to the optical out for any sound?

[Manuel]

I have a 42PDL7906H/12, sound it's ok with 2D films (at de momente I don´t have a 3d movie to test) and ac3 (or mp3 music) movies in my AV amplifier via optical output of Tv.

Audio #1
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : A_AC3
Duration : 25mn 33s
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : 1s 500ms
Stream size : 70.2 MiB (1%)
Title : AC3
Language : Portuguese
Default : Yes
Forced : No



MP3

Audio
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 3
Duration : 2mn 31s
Bit rate mode : Variable
Bit rate : 222 Kbps
Minimum bit rate : 80.0 Kbps
Channel(s) : 2 channels
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 4.00 MiB (100%)
Writing library : LAME3.97b
Encoding settings : -m s -V 2 -q 2 -lowpass 18.6 --vbr-new -b 80

[V4Friend]

Just tried to see if the problem lies with the 'USB -> optical out' connection. I played a W7 video sample (Wildlife in HD.wmv) from USB. That plays fine WITH SOUND on the optical out!

So apparently the video-stream matters

It's a drag, cause now I'll have to find out, what audio to use and convert my MKV... what a drag!

[Toengel]

Hi,

just post the MediaInfo of that file, which does not work. DTS is not supported on Philips TVs.

Toengel@Alex

[V4Friend]

OK, here it is:



As you can see, this one is 44.1k and stereo. I have a few other MKV's which are basically the same, but 48k and 6 channels...

Any ideas?

[Toengel]

Hi,

can you please use the program MediaInfo.sourceforge.net and paste the complete info (text mode). It does contain more information.

Toengel@Alex

[V4Friend]

Hi,

can you please use the program MediaInfo.sourceforge.net and paste the complete info (text mode). It does contain more information.

Toengel@Alex

This is what MediaInfo has to say:

General
Unique ID                                : 172779355973922912876943930916709337615 (0x81FC17F283732D369A200D2D2D280A0F)
Complete name                            : I:\Transformers.Dark.Of.The.Moon.2011.mkv
Format                                   : Matroska
Format version                           : Version 2
File size                                : 9.24 GiB
Duration                                 : 2h 34mn
Overall bit rate                         : 8 572 Kbps
Encoded date                             : UTC 2011-12-27 21:25:46
Writing application                      : mkvmerge v5.1.0 ('And so it goes') built on Nov 28 2011 23:58:28
Writing library                          : libebml v1.2.3 + libmatroska v1.3.0

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.1
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 4 frames
Muxing mode                              : Header stripping
Codec ID                                 : V_MPEG4/ISO/AVC
Duration                                 : 2h 34mn
Bit rate                                 : 8 209 Kbps
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 23.976 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.165
Stream size                              : 8.85 GiB (96%)
Writing library                          : x264 core 120 r2120 0c7dab9
Encoding settings                        : cabac=1 / ref=4 / deblock=1:-3:-3 / analyse=0x3:0x113 / me=umh / subme=7 / psy=1 / psy_rd=1.00:0.15 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-3 / threads=18 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=18.0 / qcomp=0.60 / qpmin=10 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Language                                 : English
Default                                  : No
Forced                                   : No

Audio
ID                                       : 2
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Mode extension                           : CM (complete main)
Muxing mode                              : Header stripping
Codec ID                                 : A_AC3
Duration                                 : 2h 34mn
Bit rate mode                            : Constant
Bit rate                                 : 192 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 44.1 KHz
Bit depth                                : 16 bits
Compression mode                         : Lossy
Stream size                              : 212 MiB (2%)
Default                                  : Yes
Forced                                   : No

I hope this sheds some light on the matter? The compatibility-list for my TV only mentions HE-AAC, AC3, MP3 and PCM as audio-codec. No restrictions of any other kind...

[V4Friend]

Right, things are getting more complicated rapidly.

The supplier of the optical-to-analog converter states that:

The converter only supports 2-channel PCM

So I tried to convert the audio from AC3 to PCM, which eventually succeeded. I attached my USB-drive to the TV, browsed to the file and BINGO:

Error: the file can not be found or played.

Like I said before: the list clearly mentions HE-AAC, AC3, MP3 and PCM as audio-codecs for MKV files. This is what MediaInfo syas this time:

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L5.1
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 2 frames
Muxing mode                              : Header stripping
Codec ID                                 : V_MPEG4/ISO/AVC
Duration                                 : 44mn 2s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 23.976 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Writing library                          : x264 core
Default                                  : Yes
Forced                                   : No
Color primaries                          : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics                 : BT.709-5, BT.1361
Matrix coefficients                      : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

Audio
ID                                       : 2
Format                                   : PCM
Codec ID                                 : A_PCM/INT/LIT
Duration                                 : 44mn 2s
Bit rate mode                            : Constant
Channel(s)                               : 2 channels
Sampling rate                            : 44.1 KHz
Bit depth                                : 16 bits
Default                                  : Yes
Forced                                   : No

Any ideas?

[V4Friend]

Anyone? Toengel?