1994 Volume 37 Issue 3 Pages 203-209
A new monosyllable list (TS-1), recorded in a CD disk and consists of 50 nonsense monosyllables was composed. The monosyllables are the same as those of 57 and 57-S lists but the order of the presentation is different from either of these lists. The intensity levels of each monosyllable in TS-1 list is the same as that of the 1000Hz calibration tone.
The speech discrimination tests were performed using each of TS-1 list, tape recorded 57-S list and TY-89 list (CD recorded 57-S list) in 8 normally hearing adults. The speech discrimination curves and consonant confusion pattern were compared among the three lists.
The results were summarized as follows,
1) The maximum speech discrimination score was obtained at 50dB in all lists. The maximum discrimination score showed no significant difference among the three lists.
2) In comparison of discrimination score at the levels from 0dB to 60dB, the significant difference was obtained at 20dB and 30dB.
3) In comparison of consonant discrimination, low consonant discrimination score at 50dB was “t∫” and “ts” of the TY-89 list.
4) The consonant confusion pattern of the three lists was similar. For the evaluation of the results of speech discrimination tests, we must take account of a peculiarity of each monosyllable list.
