Comparison of spectral representation for speaker-adaptive HMM-based speech synthesis

Speaker 4oa (Real speech )

Speaker-adaptive HTS voices

	Order	12+C0	24+C0	39+C0	49+C0	59+C0
	Mel-cepstrum
	Mel-generalized cepstrum
	MGC-LSP

Copy synthesis

	Order	12+C0	24+C0	39+C0	49+C0	59+C0
	Mel-cepstrum
	Mel-generalized cepstrum
	MGC-LSP

Target Speaker 4oi (Real speech )

Speaker-adaptive HTS systems

	Order	12+C0	24+C0	39+C0	49+C0	59+C0
	Mel-cepstrum
	Mel-generalized cepstrum
	MGC-LSP

Copy synthesis

	Order	12+C0	24+C0	39+C0	49+C0	59+C0
	Mel-cepstrum
	Mel-generalized cepstrum
	MGC-LSP

System configuration
Training data for average voice model:SI-84 set of WSJ corpora
Adaptation data: 40 'block adaptation' sentences included in November 1993 CSR H2 task
Model: state-tied context-dependent MSD-HSMMs
Adaptation: CSMAPLR+MAP
Acoustic features: STRAIGHT spectral parameters above, logF0 and aperiodicity + their delta and delta-delta