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WMC Recording video
I've a fairly good working WMC uses a Hauppage usb tv tuner almost perfectly. The only problem seems to be audio/video goes out of sync playing back recorded videos. This doesn't happen watching live tv. Happage's own WinTV recordings don't seem to exibit this issue. I've basically given up using Google for help as even links that do lead to the problem no one seems to have any concrete ideas for a solution so asking here. |
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#2
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WMC Recording video
In message , pjp
writes: I've a fairly good working WMC uses a Hauppage usb tv tuner almost perfectly. The only problem seems to be audio/video goes out of sync playing back recorded videos. This doesn't happen watching live tv. Happage's own WinTV recordings don't seem to exibit this issue. When you say _goes_ out of sync, do you mean that it starts in sync but they then slip by an increasing amount the longer you watch, or that it always has an offset? I've basically given up using Google for help as even links that do lead to the problem no one seems to have any concrete ideas for a solution so asking here. [I know what you mean. )-:] -- J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf Q. How much is 2 + 2? A. Thank you so much for asking your question. Are you still having this problem? I'll be delighted to help you. Please restate the problem twice and include your Windows version along with all error logs. - Mayayana in alt.windows7.general, 2018-11-1 |
#3
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WMC Recording video
"Wolf K" wrote in message
... Several players have adjustments for syncing audio/video, e.g, Media Player Classic. When sound and vision are out of sync by a small amount, I find it very difficult to work out which one is leading the other and therefore whether to make a positive or negative adjustment. If you can apply it to playing video, it's a lot easier than if you have to stop the video, adjust it, play it a bit more, stop it, adjust it etc. |
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WMC Recording video
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WMC Recording video
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#7
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WMC Recording video
"pjp" wrote in message
... In article , says... On 2018-11-13 11:18, NY wrote: "Wolf K" wrote in message ... Several players have adjustments for syncing audio/video, e.g, Media Player Classic. When sound and vision are out of sync by a small amount, I find it very difficult to work out which one is leading the other and therefore whether to make a positive or negative adjustment. If you can apply it to playing video, it's a lot easier than if you have to stop the video, adjust it, play it a bit more, stop it, adjust it etc. True, that would be a nice feature. VLC allows you to adjust sync pos or neg amount as it plays, Works easily and well. However that's not a solution for problem but just a work-around. I can also use VirtualDub and try to sync to audio and video but the problem is the offset is not constant but changes as the video plays, e.g. audio becomes increasingly out of sync with video. All you can do is divide a recording into chunks (maybe at advert breaks) and set a different delay for each chunk, and then join them back together. You can at least use VLC as the means of tweaking the delay till it seems right, and then reading what delay you've found to be necessary, so you can apply it to the recording using VideoRedo or VirtualDub. A bit of a nuisance if you have to do it for all/most recordings. When I used to use WMC for recording, I didn't have a problem with sync, apart from very occasional recordings. I wonder if sync delay is affected more by the software you use or by the make/model of DVB/ATSC decoder. If it's software-dependent, you could try using a package such as NextPVR instead of WMC for making your recordings. I used to use NextPVR because it could record more than one overlapping programme per multiplex which WMC unaccountably can't do - you need two tuners if you want to record two overlapping programmes. I now use TVHeadend on a Raspberry Pi (which I also use for logging data from a weather station) because it uses so much less power than leaving a Windows PC on 24/7. |
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WMC Recording video
pjp wrote:
I've a fairly good working WMC uses a Hauppage usb tv tuner almost perfectly. The only problem seems to be audio/video goes out of sync playing back recorded videos. This doesn't happen watching live tv. Happage's own WinTV recordings don't seem to exibit this issue. I've basically given up using Google for help as even links that do lead to the problem no one seems to have any concrete ideas for a solution so asking here. That seemed to be a problem in some versions of Windows 10. https://helgeklein.com/blog/2017/03/...realtek-sound/ Maybe some of the ideas there would help. Paul |
#9
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WMC Recording video
In article ,
says... "pjp" wrote in message ... In article , says... On 2018-11-13 11:18, NY wrote: "Wolf K" wrote in message ... Several players have adjustments for syncing audio/video, e.g, Media Player Classic. When sound and vision are out of sync by a small amount, I find it very difficult to work out which one is leading the other and therefore whether to make a positive or negative adjustment. If you can apply it to playing video, it's a lot easier than if you have to stop the video, adjust it, play it a bit more, stop it, adjust it etc. True, that would be a nice feature. VLC allows you to adjust sync pos or neg amount as it plays, Works easily and well. However that's not a solution for problem but just a work-around. I can also use VirtualDub and try to sync to audio and video but the problem is the offset is not constant but changes as the video plays, e.g. audio becomes increasingly out of sync with video. All you can do is divide a recording into chunks (maybe at advert breaks) and set a different delay for each chunk, and then join them back together. You can at least use VLC as the means of tweaking the delay till it seems right, and then reading what delay you've found to be necessary, so you can apply it to the recording using VideoRedo or VirtualDub. A bit of a nuisance if you have to do it for all/most recordings. When I used to use WMC for recording, I didn't have a problem with sync, apart from very occasional recordings. I wonder if sync delay is affected more by the software you use or by the make/model of DVB/ATSC decoder. If it's software-dependent, you could try using a package such as NextPVR instead of WMC for making your recordings. I used to use NextPVR because it could record more than one overlapping programme per multiplex which WMC unaccountably can't do - you need two tuners if you want to record two overlapping programmes. I now use TVHeadend on a Raspberry Pi (which I also use for logging data from a weather station) because it uses so much less power than leaving a Windows PC on 24/7. I'm checking out Hauppages own WinTv software as I write. I'll check 1/2 hr recording and if it's in sync then good bye WMC for recording purposes. I'm curious to see file size given WMC creates an 8 Gb file for an hour recording!!! I can't be bothered trying to alter sync after the fact. It's only a tv show for my wife when there's a conflict between two shows at same time she'd like to watch. Anything more elaborate and it's easier to just download from a torrent and then you have no ads etc. either. I'm waiting to receive an external TV Tuner outputs HDMI, Composite and co-axial. It also takes a USB drive and docs state you can use it as a PVR. Assuming that does it's job properly and the file format is something at least semi-common then that's likely a more dependable means of achieving recording. Maybe I'll let ya's know after it comes and I try it out. |
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WMC Recording video
In article ,
says... In article , says... "pjp" wrote in message ... In article , says... On 2018-11-13 11:18, NY wrote: "Wolf K" wrote in message ... Several players have adjustments for syncing audio/video, e.g, Media Player Classic. When sound and vision are out of sync by a small amount, I find it very difficult to work out which one is leading the other and therefore whether to make a positive or negative adjustment. If you can apply it to playing video, it's a lot easier than if you have to stop the video, adjust it, play it a bit more, stop it, adjust it etc. True, that would be a nice feature. VLC allows you to adjust sync pos or neg amount as it plays, Works easily and well. However that's not a solution for problem but just a work-around. I can also use VirtualDub and try to sync to audio and video but the problem is the offset is not constant but changes as the video plays, e.g. audio becomes increasingly out of sync with video. All you can do is divide a recording into chunks (maybe at advert breaks) and set a different delay for each chunk, and then join them back together. You can at least use VLC as the means of tweaking the delay till it seems right, and then reading what delay you've found to be necessary, so you can apply it to the recording using VideoRedo or VirtualDub. A bit of a nuisance if you have to do it for all/most recordings. When I used to use WMC for recording, I didn't have a problem with sync, apart from very occasional recordings. I wonder if sync delay is affected more by the software you use or by the make/model of DVB/ATSC decoder. If it's software-dependent, you could try using a package such as NextPVR instead of WMC for making your recordings. I used to use NextPVR because it could record more than one overlapping programme per multiplex which WMC unaccountably can't do - you need two tuners if you want to record two overlapping programmes. I now use TVHeadend on a Raspberry Pi (which I also use for logging data from a weather station) because it uses so much less power than leaving a Windows PC on 24/7. I'm checking out Hauppages own WinTv software as I write. I'll check 1/2 I just did a 1/2 hour recording using Haupagges own WinTV software. Flawless with perfect lip sync all the way thru file even after converted from ".ts" format to "Xvid/MP3" format. Guess that's what I'll use to record with although kinda like WMC more in a general way. |
#11
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WMC Recording video
"pjp" wrote in message
... I'm checking out Hauppages own WinTv software as I write. I'll check 1/2 hr recording and if it's in sync then good bye WMC for recording purposes. I'm curious to see file size given WMC creates an 8 Gb file for an hour recording!!! Blimey! 8 GB for a 1-hour recording? Is that for SD or HD? Recording from BBC One in the UK (DVB-T), a 1-hour recording is about 1.5 GB. ITV (the leading commercial channel) is quite a lot less: about 900 GB/hour. That for 720x576x25 SD (European spec), with DVB subtitles and two sound streams (programme sound and audio description for the blind). I would imagine that 640x480x30 (US spec) would be fairly similar. So if you are getting 8 GB/hour, then the broadcasters must either be adding a lot of extra streams or else only lightly compressing the signal. HD (1920x1080x25 H264) uses more bandwidth. The recent broadcast of They Shall Not Grow Old (colourised WWI film) is 4.1 GB for 1h 35m. But H264 is a more efficient means of encoding, so quality is better for an equivalent bitrate. If HD was broadcast using MPEG2 with same degree of compression as SD, you'd expect it to be about 1.5 * (1920 x 1080 / (720x576) or 7.5 GB/hour. |
#12
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WMC Recording video
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