Music Artwork issues and standards
I have experienced Artwork issues generally when using UPnP/DLNA as some renderers work OK and others do not. Sometimes using a different server resolves the one not working but the original that worked previously does not with the alternate server.
This appears to be due to the various implementations and the adherence or non-adherence to the "standards".
I have found that Serviio works well with my control app BubbleUPnP.
I have seen reference in the forum to "Serviio adhers to the standards" by PN the developer.
I have not seem a post that states what the standards are and I think it might be helpful if the "standards" are identified and the way/order Serviio handles them.
Perhaps if they have been detailed elsewhere we could have a link.
This would be helpful in diagnosis and sorting problems.
Also experience and guidance with pixel size and file size would be helpful.
I have a right mixture with no apparent implications except they all share the fuzzy artwork.
I also have a specific Artwork problem.
My (excellent) BubbleUPnP control app works perfectly with the artwork on the Qobuz stream (it also supports Tidal but I have no experience of that option - other users may wish to comment).
As the Qobuz protocol is no doubt clear and simple this is not surprising.
The Serviio stream from my local media server also works and displays album artwork and thumbnails but there is a quality issue with the displayed artwork.
I think that it is using a thumbnail and then expanding it to a poor quality artwork.
Of course this may be a BubbleUPnP or Serviio issue or a mix of both.
I have just raised the issue with the BubbleUPnP developer and now await a response.
This may be a topic where we can raise and resolve this and similar Artwork issues.