Hussein HusseinMatthias WolffOliver JokischFrank DuckhornGuntram StrechaRüdiger HoffmannA hybrid speech signal based algorithm for pitch marking using finite state machines.135-1382008INTERSPEECHhttps://doi.org/10.21437/Interspeech.2008-31conf/interspeech/2008db/conf/interspeech/interspeech2008.html#HusseinWJDSH08