Hello. I found the following open source speech editor. It requires Snack which is also open source. http://www.csc.fi/kielipankki/puhe/ Puh Editor, a tool for collaborative annotation of multimodal spoken language resources developed by the Finnish IT center for science CSC. Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software