10 free music sound download sites, and the sound material here is not only free, most of them can also be licensed for free commercial use!
 YouTube Free Music Sound Library
Https://www.youtube.com/audiolibrary/music
All are free and can be used for commercial purposes. It should be noted that some materials with special notes should be "added to the author's mark" (such as the final list of the film).

1.Freesound
Http://www.freesound.org/browse/tags/music/
Free environmental sound files, such as busy streets, noisy vocals, or drum sounds and background music for soundtracks. Most of the materials are free for commercial use, but the source of the author should be noted.

"StockSnap.iohttps://stocksnap.io/" does have a high percentage of high-quality photo works, and the site often updates a large number of new images, all of which are licensed under CC0, which means that they can be freely used for commercial and non-commercial purposes, and can be modified. There is no need to mark the author's source.

The Videvo website currently contains nearly 5,000 HD movies and high-quality animations, all of which are free to download and are also licensed for free for your commercial use!

• Use keyword search to find the videos you need.
• Use keyword search to find the videos you need.
• Into a certain movie material, you can start movie playback, view video specifications and other information.

"Videvo" is a large and high quality HD commercial video free library.

"OpenShot" is an open source free software, cross-platform (Windows, Mac, Linux), supports a variety of video formats, stability and speed is also very good, is also often updated, providing conversion output, multi-track editing film and sound channel Features, built-in video effects, subtitle effects, can be dragged and applied directly.
Download