| Platform | Best For | Weakness | | :--- | :--- | :--- | | | Cinematic SFX, Impact sounds, Whooshes | Small music library | | Artlist | Indie folk & rock music, basic ambience | Generic impact sounds | | Epidemic Sound | YouTube content, vlogs | Too "stock" for serious drama | | Sonnis | High-end trailer sounds | Expensive |
If you want the audio to be part of the file forever, you can use a "muxing" tool like MKVToolNix. Audio-track.com For Movies