Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


hbk



94 posts

Master Geek


Topic # 46495 7-Nov-2009 08:39
Send private message

Hi,

I have an HTPC running W7 MC, audio out goes to my old receiver which is adding a <100ms delay to the sound, it's only just noticable but annoying. Video goes directly from the HTPC to HDMI in on the TV.

Is there any way to add a delay to the video out from the PC to fix the sync? (Video can't go through the receiver, which would a better solution but that would require buying a new receiver which I didn't want to do yet).

Cheers

Create new topic
722 posts

Ultimate Geek


  Reply # 271716 10-Nov-2009 17:16
Send private message

Can you add a delay to the audio? What codec are you using for sound? Some have an option to add delay. Don't think it's possible with video. Don't have W7, so can't comment further without facts.




Silverstone LC14 HTPC Case/Intel E4600 CPU/GA-EP35-DS3 MOBO/Asus EN9500GT graphics/2GB RAM/total 2TB HDD space/HVR-2200 & 2X 150MCE tuner cards/LG GGC-H20L BD Drive/MCE2005/Mediaportal/TVServer 1.1.0Final/LG 55"3D LED-TV/Denon AVR-1803 receiver/X1 projector

1126 posts

Uber Geek
+1 received by user: 135

Trusted
Subscriber

  Reply # 271724 10-Nov-2009 17:30
Send private message

1gkar: Can you add a delay to the audio?


I'm sure he could, however, that is the exact opposite of what he needs to fix his current problem. I'm not sure of any delay you can add to the video to make it sync up.
Is there a game mode on the tv perhaps?

 
 
 
 


Try Wrike: fast, easy, and efficient project collaboration software
722 posts

Ultimate Geek


  Reply # 271748 10-Nov-2009 17:55
Send private message

dolsen:
1gkar: Can you add a delay to the audio?


I'm sure he could, however, that is the exact opposite of what he needs to fix his current problem. I'm not sure of any delay you can add to the video to make it sync up.
Is there a game mode on the tv perhaps?
What's the difference between adding 100ms of video delay, or subtracting 100ms of audio before it gets to the amp. Unless the amp is the issue which is adding variable delays & the audio delay cannot correct properly. If it is stable at around 100ms, I don't see why negative audio delay wouldn't work.




Silverstone LC14 HTPC Case/Intel E4600 CPU/GA-EP35-DS3 MOBO/Asus EN9500GT graphics/2GB RAM/total 2TB HDD space/HVR-2200 & 2X 150MCE tuner cards/LG GGC-H20L BD Drive/MCE2005/Mediaportal/TVServer 1.1.0Final/LG 55"3D LED-TV/Denon AVR-1803 receiver/X1 projector

1126 posts

Uber Geek
+1 received by user: 135

Trusted
Subscriber

  Reply # 271934 11-Nov-2009 09:27
Send private message

1gkar:
dolsen:
1gkar: Can you add a delay to the audio?


I'm sure he could, however, that is the exact opposite of what he needs to fix his current problem. I'm not sure of any delay you can add to the video to make it sync up.
Is there a game mode on the tv perhaps?
What's the difference between adding 100ms of video delay, or subtracting 100ms of audio before it gets to the amp. Unless the amp is the issue which is adding variable delays & the audio delay cannot correct properly. If it is stable at around 100ms, I don't see why negative audio delay wouldn't work.


By the sounds of it, he has 1 audio going to the amp, 1 video to the tv and the amp is introducing a delay in processing before the sound is heard. He wants to delay the video so they sync up. Introducing a -ve audio delay (is it still a delay) would fix it, however, this may be hard to do on live tv. What you'd essentially be doing is delaying the video.


My suggestion of a game mode is also the opposite of what he wants (wasn't thinking).

1081 posts

Uber Geek
+1 received by user: 176


  Reply # 271975 11-Nov-2009 11:13
Send private message

In the case of digital TV "live TV " in never really live. I think this would have to be done on a per codec bassis :-(




217 posts

Master Geek
+1 received by user: 2


  Reply # 271978 11-Nov-2009 11:22
Send private message

What about buying a really long video cable, so the signal takes ~100ms extra to reach the TV? I reckon you'd need about 29 000 km of cable, so it'd have to be low cost-per-meter stuff, which means signal degradation may start to be an issue...

Infrastructure Geek
4055 posts

Uber Geek
+1 received by user: 195

Trusted
Microsoft NZ
Subscriber

  Reply # 272210 11-Nov-2009 23:52
Send private message

are you sure its the audio thats lagging? i've usually seen people with the opposite problem - especially when feeding a substandard picture to a large flatscreen which has to convert and upscale image first.

depending on your model of screen, you may be able to adjust video delay there too.




Technical Evangelist
Microsoft NZ
about.me/nzregs
Twitter: @nzregs


Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

TCF and Telcos Toughen Up on Scam Callers
Posted 23-Apr-2018 09:39


Amazon launches the International Shopping Experience in the Amazon Shopping App
Posted 19-Apr-2018 08:38


Spark New Zealand and TVNZ to bring coverage of Rugby World Cup 2019
Posted 16-Apr-2018 06:55


How Google can seize Microsoft Office crown
Posted 14-Apr-2018 11:08


How back office transformation drives IRD efficiency
Posted 12-Apr-2018 21:15


iPod laws in a smartphone world: will we ever get copyright right?
Posted 12-Apr-2018 21:13


Lightbox service using big data and analytics to learn more about customers
Posted 9-Apr-2018 12:11


111 mobile caller location extended to iOS
Posted 6-Apr-2018 13:50


Huawei announces the HUAWEI P20 series
Posted 29-Mar-2018 11:41


Symantec Internet Security Threat Report shows increased endpoint technology risks
Posted 26-Mar-2018 18:29


Spark switches on long-range IoT network across New Zealand
Posted 26-Mar-2018 18:22


Stuff Pix enters streaming video market
Posted 21-Mar-2018 09:18


Windows no longer Microsoft’s main focus
Posted 13-Mar-2018 07:47


Why phone makers are obsessed with cameras
Posted 11-Mar-2018 12:25


New Zealand Adopts International Open Data Charter
Posted 3-Mar-2018 12:48



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.