5000T lip-sync issues

Forum Forums Freeview HD FVP 4000T, 5000T 5000T lip-sync issues

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  • #20638
    Anonymous
    Inactive

    Hi there, we have just replaced our older Humax box which died for a 5000T. While it had more features than I think I’ll ever need and with it a number of annoyances (besides being really sloooowwwww), the main one for me is lip-sync issues..

    The lip-sync can be adjusted on both the Humax and our Samsung UHD QLED TV, but no combination seems to work using the TV speakers or our attached Sonos Beam. Before we box it up and ship it back to Amazon had anyone else experienced this issue and managed to resolve it please.

    Thanks

    David

    July 19

    #91554
    grahamlthompson
    Participant

    No problems with mine. Think it might be a issue with the way your TV and sound bar handles Dolby-Digital audio.

    Try the following. Reset the lip synch correction on both TV and 5000T to nothing

    Tune the box to a SD TV channel. Turn down the TV volume to avoid deafening yourself. Using the 5000T increase the volume level to near max. Turn up the TV volume to a suitable listening volume.

    Assuming you use HDMI to deliver audio to TV and sound bar.

    Press the Freeview Play button – Press right 5 times to move to settings and press OK

    Press Right and down to move to Audio and press OK. Press Down to HDMI and then right – Press Up and OK on Stereo.

    Now watch both HD and SD channels. Did this resolve the problem ?

    Welcome to our forum.

    #91555
    Anonymous
    Inactive

    Thank you, yes that did work BUT… The sound is now flat with the surround sound gone. If the TV can manage it why not the Humax box I wonder?

    #91556
    grahamlthompson
    Participant

    dbedford – 27 mins ago  » 

    Thank you, yes that did work BUT… The sound is now flat with the surround sound gone. If the TV can manage it why not the Humax box I wonder?

    The issue is likely that the TV can’t properly decode Dolby Digital audio input via HDMI. There’s no problem with my 5000T when using my Yamaha home cinema 5.1 system.

    If the sound bar has a spdif optical (toslink) input connect that to the Humax box and set the toslink out to Dolby Digital. Mute the TV when viewing a HD source or invest in a proper AV receiver.

    #91557
    Anonymous
    Inactive

    Thanks again.

    Only one input into my sound bar sorry to say HDMI or optical.

    Looks like this box is going back.

    #91558
    Anonymous
    Inactive

    Checking round the Internet, audio lagging video is not uncommon on Humax boxes attempting to display HD and Dolby 2.0 or 5.1.

    #91559
    grahamlthompson
    Participant

    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:StrictlyEpisodesStrictly 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.

    #91560
    Anonymous
    Inactive

    Which version of the Sonos Beam do you have, just the soundbar or the 5.1 set that has a sub and 2 rear speakers?

    If it’s just the soundbar, then you may aswell leave the Humax on stereo as there’s no point sending a 5.1 signal to a stereo device. If the sound is “flat”, as you report, tweak the sound from within the Sonos app.

    #91561
    Anonymous
    Inactive

    My sound bar has one input HDMI, or optical which terminated in a HDMI socket. If I were to connect the sound bar to the Humax box I would get the sound feed from the Humax when using the slightly better tuners in the Samsung or watching 4K streaming video on same.

    We bought the box for the recording of 3/4 programme at once, so I guess we (my wife) can live with stereo for those recordings.

    Firmware is up to date…

    Thanks again.

    #91562
    Anonymous
    Inactive

    https://en.community.sonos.com/home-theater-228993/sonos-beam-lip-sync-issue-6809828/index1.html

    As you can see, the issue does not appear to be caused by the Humax.

    #91563
    Anonymous
    Inactive

    There is a possible Hiccup. I’m using a sound plate with an optical input.

    However, connecting it to your tv ‘s HDMI socket your crossing over audio systems.

    I have a samsung 4K tv and have my system connected to the optical output socket on the TV.That way If you turn on your sound bar ,Whatever your TV is on will come through your soundbar on the same sync as your vision appears, So long as you haven’t set up an audio delay on your TV. Mine works fine on everything that I watch regardless of source.

    You can easily get an optical lead nearly anywhere for a couple of pounds ,and it is specifically for the sound systems. I found it cured a lot of problems. Just leave your Humax volume on Full So that you won’t get a Dip in volume & use your TV, or soundbar volume to control it. It really does work well.

    #91564
    grahamlthompson
    Participant

    dbedford – 11 hours ago  » 

    My sound bar has one input HDMI, or optical which terminated in a HDMI socket. If I were to connect the sound bar to the Humax box I would get the sound feed from the Humax when using the slightly better tuners in the Samsung or watching 4K streaming video on same.

    We bought the box for the recording of 3/4 programme at once, so I guess we (my wife) can live with stereo for those recordings.

    Firmware is up to date…

    Thanks again.

    Most Dolby Digital is in fact stereo, very little is 5.1. However stereo dolby digital does sound superior to mpeg1 layer 2 stereo provided you have reasonable speakers because it has enhanced dynamic range over mpeg stereo. Why don’t you connect the sound bar to the 5000T optical output and enable dolby digital on that output, that should improve the sound when using HD channels.

    eg

    Don’t buy the gold plated ones they can ruin the sockets.

    #91565
    Anonymous
    Inactive

    grahamlthompson – 15 mins ago  » 

    dbedford – 11 hours ago  » 

    My sound bar has one input HDMI, or optical which terminated in a HDMI socket. If I were to connect the sound bar to the Humax box I would get the sound feed from the Humax when using the slightly better tuners in the Samsung or watching 4K streaming video on same.

    We bought the box for the recording of 3/4 programme at once, so I guess we (my wife) can live with stereo for those recordings.

    Firmware is up to date…

    Thanks again.

    Most Dolby Digital is in fact stereo, very little is 5.1. However stereo dolby digital does sound superior to mpeg1 layer 2 stereo provided you have reasonable speakers because it has enhanced dynamic range over mpeg stereo. Why don’t you connect the sound bar to the 5000T optical output and enable dolby digital on that output, that should improve the sound when using HD channels.

    eg

    https://www.amazon.co.uk/AmazonBasics-Digital-Optical-Audio-Toslink-Black/dp/B00L3KO3YU/ref=sr_1_2_sspa?crid=1V0RXG9B6HDXM&keywords=toslink+optical+cable&qid=1562835344&s=electronics&sprefix=toslink+%2Cinstant-video%2C139&sr=1-2-spons&psc=1

    Don’t buy the gold plated ones they can ruin the sockets.

    The Sonos Beam only has a single HDMI port, not separate HDMI and optical. Connection with optical is via the included adapter. Connecting direct to the Beam will mean that it cannot then be used to enhance anything viewed directly on the TV but may indicate whether or not the issue is the way the Sonos processes the audio from the Humax. But, as the link I provided indicates, the issue appears to be the fault of the Sonos and not limited to specific peripherals.

    #91566
    Anonymous
    Inactive

    I will guess that there is a setting on the Samsung TV to control the audio output (via hdmi arc) that is separate to the lipsync controls and the OP has not found this yet (probably hidden deep in a sub menu).

    #91567
    grahamlthompson
    Participant

    SSThing – 1 hour ago  » 

    grahamlthompson – 15 mins ago  » 

    dbedford – 11 hours ago  » 

    My sound bar has one input HDMI, or optical which terminated in a HDMI socket. If I were to connect the sound bar to the Humax box I would get the sound feed from the Humax when using the slightly better tuners in the Samsung or watching 4K streaming video on same.

    We bought the box for the recording of 3/4 programme at once, so I guess we (my wife) can live with stereo for those recordings.

    Firmware is up to date…

    Thanks again.

    Most Dolby Digital is in fact stereo, very little is 5.1. However stereo dolby digital does sound superior to mpeg1 layer 2 stereo provided you have reasonable speakers because it has enhanced dynamic range over mpeg stereo. Why don’t you connect the sound bar to the 5000T optical output and enable dolby digital on that output, that should improve the sound when using HD channels.

    eg

    https://www.amazon.co.uk/AmazonBasics-Digital-Optical-Audio-Toslink-Black/dp/B00L3KO3YU/ref=sr_1_2_sspa?crid=1V0RXG9B6HDXM&keywords=toslink+optical+cable&qid=1562835344&s=electronics&sprefix=toslink+%2Cinstant-video%2C139&sr=1-2-spons&psc=1

    Don’t buy the gold plated ones they can ruin the sockets.

    The Sonos Beam only has a single HDMI port, not separate HDMI and optical. Connection with optical is via the included adapter. Connecting direct to the Beam will mean that it cannot then be used to enhance anything viewed directly on the TV but may indicate whether or not the issue is the way the Sonos processes the audio from the Humax. But, as the link I provided indicates, the issue appears to be the fault of the Sonos and not limited to specific peripherals.

    Doesn’t the TV have toslink out that you can use to connect the soundbar to ?

    There’s no advantage in using HDMI for audio unless you have a lossless source like DTS Master HD. (as found on blu-ray disks).

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