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<blockquote data-quote="marttoma" data-source="post: 1111845" data-attributes="member: 146937">Hello mm,Thank you for explanation. You are right, I am talking about digital TV without knowledge the WSS is related to analog TV only<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />. In my case the Digital TV cable setop-box (DBV-C) provided by UPC can somehow get information about the 4:3 size content which is broadcasted in 16:9 screen size -&gt; as the setop-box switchs between 4:3 and 16:9 automatically and very fast (this change is not even visible on the TV screen).My knowledge in this area is weak, my understading is it can be done somehow if the setop-box can hanle it, may be by one of the following option:<ul>
<li data-xf-list-type="ul">DBV-C broadcasted mpeg file with 16:9 content contains information about content size 4:3 and based on this information the setop-box can automatically stretch the 4:3 content to 16:9 (the TV screen is all time 16:9 only)</li>
<li data-xf-list-type="ul">Information about the 4:3 resolution is available on Scart or HDMI connector and the automaticall stretch of 4:3 content is done by TV</li>
</ul>How is usually the signalling of aspect ratio done for digital TV?Thank youmarttoma</blockquote>

[QUOTE="marttoma, post: 1111845, member: 146937"] Hello mm, Thank you for explanation. You are right, I am talking about digital TV without knowledge the WSS is related to analog TV only:). In my case the Digital TV cable setop-box (DBV-C) provided by UPC can somehow get information about the 4:3 size content which is broadcasted in 16:9 screen size -> as the setop-box switchs between 4:3 and 16:9 automatically and very fast (this change is not even visible on the TV screen). My knowledge in this area is weak, my understading is it can be done somehow if the setop-box can hanle it, may be by one of the following option: [LIST] [*]DBV-C broadcasted mpeg file with 16:9 content contains information about content size 4:3 and based on this information the setop-box can automatically stretch the 4:3 content to 16:9 (the TV screen is all time 16:9 only) [*]Information about the 4:3 resolution is available on Scart or HDMI connector and the automaticall stretch of 4:3 content is done by TV [/LIST] How is usually the signalling of aspect ratio done for digital TV? Thank you marttoma [/QUOTE]

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