Table 5. Naturalness evaluation results... | Emerald Publishing

Table 5.

Naturalness evaluation results (five-point MOS with 95% confidence interval)

Models	MOS
Ground truth	$4.01 \pm 0.09$
Clean model baseline	$3.90 \pm 0.09$
Noisy model baseline	$3.55 \pm 0.13$
w/ UTT+CHAR TQL	3.66 $\pm$ 0.10
w/ P’UTT-TQL	$3.59 \pm 0.11$
w/ P’CHAR-TQL	$3.58 \pm 0.11$
w/ P’UTT+CHAR-TQL	$3.57 \pm 0.11$

Models	MOS
Ground truth	$4.01 \pm 0.09$
Clean model baseline	$3.90 \pm 0.09$
Noisy model baseline	$3.55 \pm 0.13$
w/ UTT+CHAR TQL	3.66 $\pm$ 0.10
w/ P’UTT-TQL	$3.59 \pm 0.11$
w/ P’CHAR-TQL	$3.58 \pm 0.11$
w/ P’UTT+CHAR-TQL	$3.57 \pm 0.11$

Source(s): Authors’ own work