16,000 BBC Sound Effects made available by the BBC in WAV format to download for use under the terms of the RemArc Licence. The Sound Effects are BBC copyright, but they may be used for personal, educational or research purposes, as detailed in the license.
Freesound aims to create a huge collaborative database of audio snippets, samples, recordings, bleeps, etc., released under Creative Commons licenses that allow their reuse.
This service allows users to limit their searches to only music that is licensed under specific Creative Commons licenses using their Advanced Search features.