digital terrestrial television or DTT It remains one of the main entertainment alternatives for homes in Spain, but we often complained that the broadcast quality was questionable both in terms of content and the technical part of the picture and sound, as most channels were still in low resolution.

This Changed February 14, 2024 Blackout of SD channels on DTT resulted in all channels being shut down Mandatory broadcast in high definition or HD offers better audiovisual quality.

However, in addition to resetting the new dials to HD, it is also convenient for us to tap some settings on our screen to enjoy this new definition and thus adapt to the new situation.

Setting to adjust when changing channels from SD to HD

Take shots with very high sharpness, pixelation, mosquito effects, and halos on signs. Image: Sixth

And especially one of the basic settings that needs to be adjusted is sharpness or “sharpening”, The parameter that controls the maximum detail on our television. Because?

We probably had this value before configuring the TV to watch channels in SD. higher than desired number. This was probably because to us the image looked a bit blurry (due to the low resolution), especially when we were sitting far away and tended to turn the image on.

Even if we set this sharpness control to a very low level, the images looks blurry, But it also happened that we watched the channels in low resolution and left them at the level recommended by the manufacturer. What did many users do while watching SD channels? So we tried to solve it by increasing the sharpness.

Shoot at medium sharpness, without such visible artifacts. Image: Sixth

However, now that all channels are available in HD, this value is very high. digital worksjagged edges, image with highly digital appearance, mosquito noise will be highlighted and compression macroblocksAs well as the moiré effect.

How can we adjust the sharpness correctly? Well, there is no optimum value that we can set in the TV settings menu and it is valid for all models.

But we could use one pattern video as we suggest here (especially towards the middle) and adjust the TV’s sharpness control until you get good detail without the artifacts described above appearing.

This is important Let’s sit at normal viewing distance To calibrate this parameter, otherwise we will not achieve the optimal result.

we can too put a DTT channel Since we usually see and change the sharpness control to see everything well, we can read text and details of textures well, but the aforementioned flaws do not show up or become very visible.

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