- added command line option --env_transposition_fac, configSynth transposition_env_exp: more natural singing quality by means of dynamic envelop transposition,
- faster synthesis (about 10-30%) byt means of improved FFT library and pulse parameter cache,
- signficiantly reduced memory requirement: now allows synthesizing very long sogs with constant memory,
- support storing of, and resynthesis from semi-symbolic XML files for F0 and loudness contours,
- added progress indicator to the pulse generation phase that may last rather long (30-80% of song duration).
(Database files ave not been changed, please use those from release v1.2.7)