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Audio / Video Sync Issue with BBC iPlayer Downloads

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Audio / Video Sync Issue with BBC iPlayer Downloads

Postby hans302 » 18 Aug 2017, 05:41

Hi - I am downloading content from BBC iPlayer using the PASTE AND ADD TO LIST function on the main screen and then selecting 50 FPS - Everything downloads fine, but the output file gradually looses Audio/Video synchronisation after around 1 minute (The Audio is ahead of the video by around half a second and gets gradually worse) - I have checked the output on my PC and on my APPLE TV and the same issue occurs on both devices.

When I download the same content using LINK FINDER and convert the FLV file to MP4 - Everything works OK - Could it have something to do with when the program stitches together all of the segments when it prepares the MP4 file?

Here is the BBC iPlayer LINK
http://www.bbc.co.uk/iplayer/episode/p0 ... ys-abscess


Any ideas

Regards
Hans

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Re: Audio / Video Sync Issue with BBC iPlayer Downloads

Postby Chris » 19 Aug 2017, 10:57

There is no issue playing the 50 fps MP4 file on Win10 with Windows Media Player, VLC or BsPlayer.
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Re: Audio / Video Sync Issue with BBC iPlayer Downloads

Postby hans302 » 19 Aug 2017, 14:23

Must be an IOS and Apple issue then - As when playing on my APPLE TV via iTunes (after downloading using your software) the AV sync is out by around 4 seconds at the end of the half hour programme.

I will continue to use LINK FINDER from now on for BBC iPlayer downloads.

Regards
Hans

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Re: Audio / Video Sync Issue with BBC iPlayer Downloads

Postby theedger » 19 Aug 2017, 15:45

It's a frame rate issue. I had the same problem. DL 25fps flash and convert with vlc to mp4 to solve the issue. For some reason the program is treating the 25 and 50 fps as slightly less than that fps (something like 24.9ish and 49.9ish) and so it slowly slips.

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Re: Audio / Video Sync Issue with BBC iPlayer Downloads

Postby hans302 » 19 Aug 2017, 16:35

Thanks for that - That make perfect sense - LINK FINDER its is then !!

Hans

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Re: Audio / Video Sync Issue with BBC iPlayer Downloads

Postby Chris » 15 Feb 2018, 11:44

Please try version 10.02.15, the FPS issue should be fixed now for BBC videos.
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Re: Audio / Video Sync Issue with BBC iPlayer Downloads

Postby hans302 » 17 Feb 2018, 04:51

Works a treat now Chris !

Thanks

:D

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