Hi! I just released a new version of Rhubarb Lip Sync. Until now, all discussion of Rhubarb has happened in the "Lip Sync" thread over at the Unity forum. As Rhubarb has nothing to do with Unity, I'm creating a new thread for Rhubarb here.
Rhubarb Lip Sync is a free and open-source tool that automatically generates mouth animations from audio files. You can use it with a number of software packages, including Spine. Here are some links:
The latest version 1.8.0 adds support for Ogg Vorbis files. Now Rhubarb supports both .wav and .ogg files.
I'll update this thread whenever there is news regarding Rhubarb for Spine.
Please let me know what you think. I'm always happy to get feedback!