| utterance | VOC | PIC-GP | DNN | DGP |
|---|---|---|---|---|
| A | ||||
| B | ||||
| C | ||||
| D | ||||
| E |
| Methods | Meaning |
|---|---|
| VOC | Vocoder speech by STRAIGHT. |
| PIC-GP | HMM-Gaussian process hybrid model using partially independent conditional approximation. |
| DNN | Deep neural network. |
| DGP | Proposed method based on deep Gaussian processes. |