Dual license for some sounds?

[Andrettin]

Hello,

I am currently working on an open-source RTS using the Stratagus engine, and I would like to use some of the 0 A.D. sounds in the game. However, almost all of the content (artwork, etc.) I'm using is licensed under the GPLv2, and for practical reasons I would prefer to keep it all under the same license, it would be very useful if certain 0 A.D. sounds were also licensed under the GPLv2 (the civic center, barracks, farmstead and metal resource select sounds, as well as the "alarm" one, the wood harvesting ones and the click sound). Would it be possible for the 0 A.D. sounds to be licensed under the GPLv2, or failing that, at least these specific sounds?

Kind regards,
Andrettin

[sanderd17]

I'm afraid we can't help in a legal way. The sounds aren't owned by WFG in any way, the authors still have all their original rights, and WFG only has the rights granted per CC-BY-SA, as anyone has. So to do it in a legal way, you'd have to search the original author of the sound, and ask permission directly. It will be a hard job, certainly for old files, as most old-time contributors are gone.

You can view the history of most sound files in our trac (like this for the barracks sound: http://trac.wildfiregames.com/log/ps/trunk/binaries/data/mods/public/audio/interface/select/building/sel_barracks.ogg ), there you can ask the one who originally uploaded it, if the source his sounds came from can legally be licensed under GPLv2, and if he's willing to.

[Andrettin]

I'm afraid we can't help in a legal way. The sounds aren't owned by WFG in any way, the authors still have all their original rights, and WFG only has the rights granted per CC-BY-SA, as anyone has. So to do it in a legal way, you'd have to search the original author of the sound, and ask permission directly. It will be a hard job, certainly for old files, as most old-time contributors are gone.

You can view the history of most sound files in our trac (like this for the barracks sound: http://trac.wildfiregames.com/log/ps/trunk/binaries/data/mods/public/audio/interface/select/building/sel_barracks.ogg ), there you can ask the one who originally uploaded it, if the source his sounds came from can legally be licensed under GPLv2, and if he's willing to.

Thanks!

[Jeru]

In general, the GPL is a license best used for source code, not for other works.