dbedford - 3 hours ago »
Thanks again.
Only one input into my sound bar sorry to say HDMI or optical.
Looks like this box is going back.
So use the optical input to the sound bar as suggested. toslink is s/pdif optical (SPdif is a connection jointly designed by Philips and Sony that can carry up to 5.1 Dolby Digital or DTS) using coax or optical cables. Baffled You come back with a post that says your sound bar has the connection that I suggested you use and say it does not.
Whatever you replace it with will have the same issue. The audio format is as transmitted by the broadcaster and the required delays for the video so that the audio is in synch is built into the broadcast is built in to the broadcast. (Be it terrestrial or satellite). Until you recognise it's a limitation of your kit and perhaps actually try the suggested connection, you will get the same issue.
That's because TV's that do not handle Dolby Digital properly is common especially on hdmi inputs. Proessing Video takes longer than audio so all sources have a delay built in to the audio stream to compensate. There is nothing wrong with the lip synch on any of Humax Freeview or Freesat boxes (including a FVP-5000T). I have 3 Humax Freeview and two Freesat Pvrs connected to my AV receiver none of them has any lip synch issues. They all output Dolby Digital on HDMI. I also use the toslink outputs to feed a toslink matrix switch to feed wireless WiFI surround headphones. The headphones which have there own DD decoder also do not have lip synch issues.
Typical Freesat HD broadcast
General
ID : 2050 (0x802)
Complete name : D:\StrictlyEpisodes\Strictly Come Dancing_20170930_1844.ts
Format : BDAV
Format/Info : Blu-ray Video
File size : 7.68 GiB
Duration : 2 h 6 min
Overall bit rate mode : Variable
Overall bit rate : 8 699 kb/s
FileExtension_Invalid : m2ts mts ssif
Video
ID : 5400 (0x1518)
Menu ID : 6941 (0x1B1D)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings, CABAC : Yes
Format settings, RefFrames : 4 frames
Format settings, GOP : M=8, N=24
Codec ID : 27
Duration : 2 h 6 min
Bit rate : 7 893 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 FPS
Standard : Component
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : MBAFF
Scan type, store method : Interleaved fields
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.152
Stream size : 6.96 GiB (91%)
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio #1
ID : 5401 (0x1519)
Menu ID : 6941 (0x1B1D)
Format : AC-3
Format/Info : Audio Coding 3
Format settings, Endianness : Big
Codec ID : 6
Duration : 2 h 6 min
Bit rate mode : Constant
Bit rate : 192 kb/s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -1 s 156 ms
Stream size : 173 MiB (2%)
Language : English
Service kind : Complete Main
Audio #2
ID : 5402 (0x151A)
Menu ID : 6941 (0x1B1D)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Codec ID : 3
Duration : 2 h 6 min
Bit rate mode : Constant
Bit rate : 256 kb/s
Channel(s) : 2 channels
Sampling rate : 48.0 kHz
Compression mode : Lossy
Delay relative to video : -1 s 96 ms
Stream size : 231 MiB (3%)
Language : nar
Text
ID : 5404 (0x151C)
Menu ID : 6941 (0x1B1D)
Format : DVB Subtitle
Codec ID : 6
Duration : 2 h 6 min
Delay relative to video : 5 s 648 ms
Language : English
Recording From a Foxsat-HDR though Freeview is the same.
The fact that converting the same HD source from Dolby-Digital to Mpeg1 layer 2 audio should prove that the lip synch issues are introduced in the TV dolby digital decoding circuitry. Perhaps you should check with the TV maker for a firmware update.
If the delay is not correct for the DD decoding in your TV you will still have the problem. Hopefully your sound bar when connected as suggested will be OK.
| Wed 10 Jul 2019 20:47:36
#7 |
