I propose a new plugin to help synchronise audio and Synfig animations. It allows to import the timings you highlight as track labels sections in Audacity as Synfig keyframes.
- use Audacity to label track segments
- export your labels via Tracks > Edit Labels > export, in Audacity, and save them as “labels.txt” in your Synfig project directory.
- open your synfig project, save it as SIF (Synfig plugins don’t work on -default- sifz for now)
- run the plugin at > Plug-Ins > Import Audacity Labels as Keyframes
or use the command-line: (only on sif files, need to unzip sifz manually):
python import-audacity-labels-keyframes.py in.sif (labels.txt (out.sif))
Decompress plugin archive into your synfig plugins directory (in linux: home/.synfig/plugins)
Let me know how this works for you and how to improve the thing.