As a data file format (declarative, no code to run) no, there is nothing else. SVG SMIL is the only file format for saving vector animations as data.<p>Here is an example SVG SMIL file with a cartoon episode with embedded audio in synch:<p><a href="https://imgh.us/LoveDota.svg" rel="nofollow">https://imgh.us/LoveDota.svg</a><p>The animation with the audio is reproduced correctly on Chrome and Firefox.<p>On Safari there is no audio, but the bug is currently under review:
<a href="https://bugs.webkit.org/show_bug.cgi?id=155778" rel="nofollow">https://bugs.webkit.org/show_bug.cgi?id=155778</a><p>(NOTE: the above animation was made with AnimateCC and exported in SVG format with the flash2svg addon).<p>Without SMIL you just lose the option of saving complex animations like that. SVG SMIL is the PNG of vector animations.