Department of Computer Science;
Bogor Agricultural University;
Bogor;
Indonesia;
Department of Computer Science;
Tarumanagara University;
Jakarta;
Indonesia;
Department of Electrical Engineering;
Universitas Indonesia;
Jakarta;
Indonesia;
2D; Mel-Frequency; Cepstrum; Coefficients; Bispectrum; Hidden; Markov; Model; Genetics; Algorithms;