Complex Cepstrum Based Voice Conversion Using Radial Basis Function

Table 3

Prediction performance of complex cepstrum based for formant frequencies.

Transformation model	Formant frequencies	% Predicted frame within deviation
		2%	5%	10%	15%	20%	25%	50%	𝜇RMSE	Υ𝑋,𝑦
M1-F1	F1	59	80	89	91	91	93	95	4.45	0.7197
	F2	52	72	85	88	91	92	95	3.55	0.8149
	F3	63	83	90	92	93	95	99	2.65	0.8837
	F4	72	86	91	93	95	97	100	2.049	0.8909
F2-M2	F1	38	60	71	78	80	86	90	8.56	0.757
	F2	60	82	89	92	92	93	98	3.62	0.790
	F3	72	87	92	95	95	95	100	2.93	0.778
	F4	70	86	91	96	97	99	100	2.41	0.756