1. AMFM decompy.. https://pypi.python.org/pypi/AMFM_decompy. AMFM decompy.. https://pypi.python.org/pypi/AMFM_decompy.
2. Boersma P. Praat: doing phonetics by computer. http://www.praat.org/ (2006). Boersma P. Praat: doing phonetics by computer. http://www.praat.org/ (2006).
3. VoCo
4. Mahrt T. PraatIO. https://github.com/timmahrt/praatIO. Mahrt T. PraatIO. https://github.com/timmahrt/praatIO.