So i have made sound to a animation but when i tried to upload it i got this message: This post was deleted by Mairo. Reason: Inferior version/duplicate of post #1664207 (Artificial upscale, Compression)... The orginal webm video had no sound so i added sound to the webm video and i gave credits to the artist

Your edit was bad, plain and simple. While the audio is okay you upscaled the video and compressed it further. I'd be much better if you'd actually leave the video alone and just add the audio stream. Though some of the sound effects could have been better as well, for example the swooping bird sounds like a laser effect, not like a bird.

NotMeNotYou said:
Your edit was bad, plain and simple. While the audio is okay you upscaled the video and compressed it further. I'd be much better if you'd actually leave the video alone and just add the audio stream. Though some of the sound effects could have been better as well, for example the swooping bird sounds like a laser effect, not like a bird.

So if i just add the audiostream to the orginal webm video then its ok? and witch audio effects could have been better? Btw if i upload it again will it be removed again because of a duplication?

dornyderp said:
So if i just add the audiostream to the orginal webm video then its ok? and witch audio effects could have been better? Btw if i upload it again will it be removed again because of a duplication?

In case where only audio is added, most ideal situation is to simply copy the video track to container with audio, yes. Sadly really small amount actually does this.
In case of audio edits in general, re-encodes do not matter as much when we already have the video content available and in cases of watermarking or editing content itself that's pretty much required, however the visual quality should still match at least close to original and upscales are generally not allowed.

In this case the deletion reason was because the content was upscaled and had clearly visual compression artifacting especially compared to source material, so uploading it again without these issues wouldn't count as dublicate or previously deleted.

i got it