For realtime multi-voice synthesis, I keep using a not very well advertised side-project that performs reasonably well and also doesn't have a huge codebase: ht

For realtime multi-voice synthesis, I keep using a not very well advertised side-project that performs reasonably well and also doesn't have a huge codebase: http://pippin.gimp.org/lyd/ http://pippin.gimp.org/lyd/