SPTK Version 4.2

New features

• Enable to whiten residual signal (amgcep -k) by @takenori-y in #27
• Enable to change of signal in unvoiced region (excite -n) by @takenori-y in #28
• Add ap command by @takenori-y in #30
• Add pitch_spec command by @takenori-y in #34
• Add world_synth command by @takenori-y in #35
• Support Harvest (pitch -a 4) by @takenori-y in #36
• Support recursive vector merge (merge -q) by @takenori-y in #44
• Add pitch2sin by @takenori-y in #46 and #48
• Convert GUI to sinusoidal waveform (pitch_mark -o 3) by @takenori-y in #49
• Support statistics merge (vstat -o 7) by @takenori-y in #51
• Windows support by @takenori-y in #42

Minor fixes

• Add cmake find_package compatibility by @ascii255 in #33
• Remove +e option from draw command by @takenori-y in #41
• Fix bug in magic_intpl by @takenori-y in #43
• Reduce computational cost of vstat by @takenori-y in #50
• Fix minmax by @takenori-y in #53

Acknowledgments

• Keiichi Tokuda @k1tokuda
• Keiichiro Oura @uratec
• Takenori Yoshimura @takenori-y
• Takato Fujimoto @taka19