Results
In total, 94 children (47 girls and 47 boys) with hearing loss were recruited, and their ages ranged from 30 to 180 months old (mean 79.6±37.3 months, median 72 months). All 94 children completed the test. In brief, SIS1 were the highest, followed by SIS2 and then SIS3. The interquartile range (IQR) for SISASR was 40 to 92, with a median of 72. The IQR for SIS1 was 77.5 to 100, with a median of 96. The IQR for SIS2 was 74 to 100, with a median of 94. The IQR for SIS3 was 71.4 to 98.7, with a median of 89. The scores of the tests are shown in Table 1.
To intuitively analyze the differences between different raters, 20 of the 94 children were randomly sampled in the final analysis using the SPSS software program. Among them, the SISASR for 17 children was lower than the subjective assessments. Only the SISASR for two children was higher than the SIS1. Only the SISASR for one child was higher than the SIS3. Figure 1 shows the scores of subjective evaluations (including three levels) and the scores of the automatic speech recognition system.
The correlations between the SISASR and the SISTE are shown in Figure 2. The overall trend showed that the higher the SISASR, the higher the SISTE, indicating a positive correlation between the scores.
SISASR showed perfect consistency with the SISTE, as shown in Table 2. The lowest correlation between a rater and the mean of the other two levels was 0.928 (SIS1 vs SIS3), and the highest was 0.971 (SIS2 vs SIS3). Table 2 also shows the correlations between different raters. The correlation between the traditional evaluation group and automatic speech recognition is 0.883. This means that the agreement between the human raters and the machine and the agreement among the humans alone can be regarded as significant.