11-29-2015, 10:52 PM
If I understand your question correctly, then it would be illegal to use sounds in commercially released videos, games, whatever. By commercially released I mean if you're making money off of it. This is obviously the same as with sprites, models, and textures; making a Zelda game that you're selling using sprites from the original games is obviously illegal, and is not what the site is for.
If you only intend to use it for fan arts, or for something that won't make any money, that's a different story. Again using sprites as an example, many people use them in sprite comics, mockups, and fan games. If these are freely available the it's usually fine.
However be aware that it's still the developer's right to ask you to remove their assets from your work, just as it is for them to ask us to remove them from the site. This doesn't happen very often, and the majority of the time developers either don't care or don't know (which usually means they don't care enough to check), but it's still something to keep in mind.
Also, although it's not legally required, morally you should always credit the original creators (and the rippers, if they request credit for ripping). This may even sway a developer's decision to ask you to stop using their resources, they may be inclined to allow it if you've given them credit.
If you only intend to use it for fan arts, or for something that won't make any money, that's a different story. Again using sprites as an example, many people use them in sprite comics, mockups, and fan games. If these are freely available the it's usually fine.
However be aware that it's still the developer's right to ask you to remove their assets from your work, just as it is for them to ask us to remove them from the site. This doesn't happen very often, and the majority of the time developers either don't care or don't know (which usually means they don't care enough to check), but it's still something to keep in mind.
Also, although it's not legally required, morally you should always credit the original creators (and the rippers, if they request credit for ripping). This may even sway a developer's decision to ask you to stop using their resources, they may be inclined to allow it if you've given them credit.