When comparing Freesound vs CraftPix.net, the Slant community recommends CraftPix.net for most people. In the question“What are the best sources of royalty free game assets?” CraftPix.net is ranked 4th while Freesound is ranked 5th.
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Pros
Pro Creative Commons licensing
All assets made available through Freesound are required to be licensed under either CC0, CC-BY or CC-BY-NC.
Pro Extensive asset information
Each sample has a details page which includes a waveform view, a full-length audio preview, user-assigned tags, author-assigned "pack" grouping, and an author chain ("remixes and sources") for derivative assets.
Pro Opportunity to get unlimited access to the entire collection for $17 a month
Pro Regular updates
Regular updates of the collection.
Pro Price-quality ratio
Pro High-priority support
Cons
Con Some assets may have restrictive licenses
Freesound permits uploaders to select the CC-BY license, which disallows the use of DRM, and the CC-BY-NC license, which disallows commercial use entirely. Licenses are prominently displayed on an asset's details page, and represented by a small icon in list views, but there is no option to filter by asset when searching or browsing.
Con Audio samples and sound effects only
Freesound does not host any kind of non-audio asset.
Choice of music is also scant.