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Audio and Video Talk
General Discussion
Video quality: Chromecast vs XBox Series X
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<blockquote data-quote="KenMasters" data-source="post: 1127442" data-attributes="member: 517"><p>A couple of things going on. First, you're converting 4K to SDR - they use different colour spaces, so there's an extra conversion there (in addition to whatever chroma scheme and output format you've selected). Secondly, the Xbox is not a great video source, it performs an extra colour conversion step most other devices don't (even if it was just straight SDR or HDR).</p><p></p><p>Centrally though, it looks like the issue is with the black level setting of the Xbox, it looks like it's outputting a full range RGB signal instead of limited RGB or YCbCr, so the black level is elevated.</p><p></p><p>Additionally, while nothing to do with colour, 60Hz also means you'll have judder in the image, as frames will not be distributed evenly.</p><p></p><p>As for the audio, I believe the Xbox also doesn't bitstream DD+, it's either down-converting the audio to Dolby Digital or PCM - in which case it could be stripping away dialnorm, altering the volume level. Also could be a dynamic range compression setting on either the Chromecast or the Xbox.</p><p></p><p>I don't have either device though, just speaking off the top of my head. Point is in both cases you're not dealing with straight ones and zeros.</p><p></p><p>EDIT: Google tells me there is an option in the Xbox menu to allow passthrough audio in the General settings under Additional Options. I assume the same is possible with the Chromecast - do that and the audio should be exactly the same.</p></blockquote><p></p>
[QUOTE="KenMasters, post: 1127442, member: 517"] A couple of things going on. First, you're converting 4K to SDR - they use different colour spaces, so there's an extra conversion there (in addition to whatever chroma scheme and output format you've selected). Secondly, the Xbox is not a great video source, it performs an extra colour conversion step most other devices don't (even if it was just straight SDR or HDR). Centrally though, it looks like the issue is with the black level setting of the Xbox, it looks like it's outputting a full range RGB signal instead of limited RGB or YCbCr, so the black level is elevated. Additionally, while nothing to do with colour, 60Hz also means you'll have judder in the image, as frames will not be distributed evenly. As for the audio, I believe the Xbox also doesn't bitstream DD+, it's either down-converting the audio to Dolby Digital or PCM - in which case it could be stripping away dialnorm, altering the volume level. Also could be a dynamic range compression setting on either the Chromecast or the Xbox. I don't have either device though, just speaking off the top of my head. Point is in both cases you're not dealing with straight ones and zeros. EDIT: Google tells me there is an option in the Xbox menu to allow passthrough audio in the General settings under Additional Options. I assume the same is possible with the Chromecast - do that and the audio should be exactly the same. [/QUOTE]
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Audio and Video Talk
General Discussion
Video quality: Chromecast vs XBox Series X
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