Results for Speech Signals of a single speaker

The algorithm was first tested on single-channel speech signals of a single speaker. A comparison of accuracies between cepstrum and proposed method for each speaker are shown in table 1. As the results, our algorithm significantly outperforms cepstrum. An example of detected $F_0$ contour is depicted in figure 3 where the reference is shown in figure 4.

図: Detected $F_0$ contours of two concurrent speakers
図: Reference $F_0$ contours corresponding to Figure 5

表 2: Results for two speakers (Cepstrum)

Speech files		Accuracy(%)
File 1	File 2	Speaker 1	Speaker 2
`myisda01'	`myisda03'	63.7	63.1
`myisda01'	`myisda04'	45.7	51.6
`myisda02'	`myisda03'	63.3	50.1
`myisda02'	`myisda04'	59.4	42.1
`fymsda01'	`fymsda02'	57.7	54.0
`fymsda01'	`fymsda04'	53.1	41.0
`fymsda02'	`fymsda03'	52.9	59.6
`fymsda02'	`fymsda04'	64.9	64.7
`myisda01'	`fymsda03'	45.7	43.0
`myisda02'	`fymsda05'	55.0	44.5
`myisda03'	`fymsda04'	41.4	59.9
`myisda04'	`fymsda02'	64.9	50.6
`myisda05'	`fymsda03'	59.4	62.8
`myisda04'	`fymsda01'	62.0	71.7

表 3: Results for two speakers (Proposed)

Speech files		Accuracy(%)
File 1	File 2	Speaker 1	Speaker 2
`myisda01'	`myisda03'	90.1	83.0
`myisda01'	`myisda04'	92.8	81.3
`myisda02'	`myisda03'	88.2	85.7
`myisda02'	`myisda04'	84.4	87.6
`fymsda01'	`fymsda02'	90.7	84.3
`fymsda01'	`fymsda04'	85.3	82.6
`fymsda02'	`fymsda03'	79.2	90.3
`fymsda02'	`fymsda04'	86.2	92.6
`myisda01'	`fymsda03'	76.1	84.9
`myisda02'	`fymsda05'	74.8	92.8
`myisda03'	`fymsda04'	72.6	88.4
`myisda04'	`fymsda02'	86.3	85.5
`myisda05'	`fymsda03'	78.0	86.6
`myisda04'	`fymsda01'	79.0	86.6