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Lip Sync

 
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Franin



Joined: 21 Jun 2013
Posts: 1



PostLink    Posted: Fri Jun 21, 2013 4:00 am    Post subject: Lip Sync Reply with quote


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Hi I'm looking at getting a Lumagen Mini and want to know before I make the commitment.

I'm looking at this configuration

Denon blu ray 2500 -Marantz-mini-projector.

With this configuration will there be lip syn issue. I had to sell my Duo for this reason.

Thank you
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kal
Forum Administrator


Joined: 06 Mar 2006
Posts: 15868
Location: Ottawa, Canada

TV/Projector: JVC DLA-RS56


PostLink    Posted: Fri Jun 21, 2013 12:34 pm    Post subject: Reply with quote

I have never heard of any of the Radiance units introducing any noticeable delays causing lip sync issues. Never had any complaints.

That said, you may be best to check directly with the Lumagen support team just to be safe. I'd email them at support@lumagen.com, or you can call them at: 503-574-2211

Heads up that our Radiance Mini sale ends at the end of June so don't delay!

Kal

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Last edited by kal on Mon Jun 24, 2013 6:02 pm; edited 1 time in total
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Rolls-Royce



Joined: 30 Sep 2007
Posts: 288
Location: Victorville, CA


PostLink    Posted: Mon Jun 24, 2013 5:57 pm    Post subject: Re: Lip Sync Reply with quote

Franin wrote:
Hi I'm looking at getting a Lumagen Mini and want to know before I make the commitment.

I'm looking at this configuration

Denon blu ray 2500 -Marantz-mini-projector.

With this configuration will there be lip syn issue. I had to sell my Duo for this reason.

Thank you


I've been using a Lumagen Mini since last September with a Panasonic Blu-Ray player, Toshiba HD-DVD player, and (at first) DISH and (now) FIOS receivers. No lipsync issues noticed.

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CIR Engineering



Joined: 25 Aug 2008
Posts: 3886
Location: Chicago USA & Berlin Germany

TV/Projector: Sony G90 RadiancePro 4446 - Moome FullHDv2 3D


PostLink    Posted: Mon Jun 24, 2013 10:06 pm    Post subject: Reply with quote

The Lumagen VP is so fast that you will have zero lip sync issues at all resulting from it.

With digital projectors there is always some video delay as the projector decodes the digital to an image. This is why we have audio delay in modern HDMI receivers.

On the other hand, CRT has no video delay at all and the image is essentially displayed at the speed of flight. Because of this with some CRT theaters I have found issues with the video getting to the screen before the audio comes out of the receiver (with slower receivers). This results in the opposite delay that a digital projector suffers from, it's actually audio delay instead of video delay! In this case, adding the Lumagen can only improve matters.

However, the Lumagen is so fast that even with it in the chain I still sometimes wish that I could delay the video even more. One feature we were thinking of adding to the Radiance processors is a adjustable video delay. This would be really cool because no receiver can add audio advance. Video delay could fix the issue we sometimes have with CRT projectors using modern HDMI. But unfortunately the Radiance doesn't have enough memory to allow for very much video delay so the feature idea was dropped. It takes a lot more RAM than the Radiance has to provide a significant amount of video delay.

So again, no, you won't have any lip sync issues due to a Radiance processor Smile

craigr

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kal
Forum Administrator


Joined: 06 Mar 2006
Posts: 15868
Location: Ottawa, Canada

TV/Projector: JVC DLA-RS56


PostLink    Posted: Tue Jun 25, 2013 11:55 am    Post subject: Reply with quote

Great post Craig - thanks for the extra info!

Kal

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My basement/HT/bar/brewery build 2.0
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