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Does GS accepts YPbPr with Bi-level sync signal on HDCI input?

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Does GS accepts YPbPr with Bi-level sync signal on HDCI input?

 
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Polycom Employee & Moderator

Re: Does GS accepts YPbPr with Bi-level sync signal on HDCI input?

Response from elsewhere I went to (we = Polycom):

 

The YPrPb we specify is TRI-level sync.

Usually the bi-level sync kinda-sorta works but is flaky (flashes and blue-screens).

Tri-level sync is the only HD analog form that is reliable with our HDCI inputs.

 

Additional information, from the same person who provided the initial response.

 

BTW… here’s a nice reference about tri-level sync.

 

http://jwsoundgroup.net/index.php?/topic/15497-tri-level-sync-in-a-bi-level-world/

 

 

 

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Polycom Employee & Moderator

Re: Does GS accepts YPbPr with Bi-level sync signal on HDCI input?

Response from elsewhere I went to (we = Polycom):

 

The YPrPb we specify is TRI-level sync.

Usually the bi-level sync kinda-sorta works but is flaky (flashes and blue-screens).

Tri-level sync is the only HD analog form that is reliable with our HDCI inputs.

 

Additional information, from the same person who provided the initial response.

 

BTW… here’s a nice reference about tri-level sync.

 

http://jwsoundgroup.net/index.php?/topic/15497-tri-level-sync-in-a-bi-level-world/

 

 

 

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Message 2 of 5
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Trusted Contributor

Re: Does GS accept YPbPr with Bi-level sync signal on HDCI input?

Dear Steven!

 

Thank you for answer. Once more question: what about input 4 of GS 700? Does it work with Bi-level sync component signal?

 

 

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Message 3 of 5
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Polycom Employee & Moderator

Re: Does GS accept YPbPr with Bi-level sync signal on HDCI input?

Here again, we may have a misunderstanding of the port configuration.

That port is intended for YPrPb with tri-level sync.
The port DOES support Composite video 480i on the yellow connector.
 

YPrPb in our environment demands tri-level sync.

 

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Re: Does GS accept YPbPr with Bi-level sync signal on HDCI input?

Dear Steven!

 

Thank you for such full qualified answers! I really appreciate your help!

 

I knew that HDX lineup requires tri-level sync, but wanted to verify this against GS lineup.

 

Threre is article 14021 in knowlege base about it. (HDX)

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