Duggirala V, Studebaker G A, Pavlovic C V, Sherbecoe R L
Department of Linguistics, Osmania University, Hyderabad, India.
J Acoust Soc Am. 1988 Jun;83(6):2372-82. doi: 10.1121/1.396316.
The relative importance of different parts of the auditory spectrum to recognition of the Diagnostic Rhyme Test (DRT) and its six speech feature subtests was determined. Three normal hearing subjects were tested twice in each of 70 experimental conditions. The analytical procedures of French and Steinberg [J. Acoust. Soc. Am. 19, 90-119 (1947)] were applied to the data to derive frequency importance functions for each of the DRT subtests and the test as a whole over the frequency range 178-8912 Hz. For the DRT as a whole, the low frequencies were found to be more important than is the case for nonsense syllables. Importance functions for the feature subtests also differed from those for nonsense syllables and from each other as well. These results suggest that test materials loaded with different proportions of particular phonemes have different frequency importance functions. Comparison of the results with those from other studies suggests that importance functions depend to a degree on the available response options as well.
确定了听觉频谱不同部分对诊断韵律测试（DRT）及其六个语音特征子测试识别的相对重要性。三名听力正常的受试者在70种实验条件下各接受了两次测试。将French和Steinberg [《美国声学学会杂志》19, 90 - 119 (1947)] 的分析程序应用于数据，以得出DRT每个子测试以及整个测试在178 - 8912 Hz频率范围内的频率重要性函数。对于整个DRT，发现低频比无意义音节的情况更重要。特征子测试的重要性函数也与无意义音节的不同，并且彼此之间也不同。这些结果表明，加载不同比例特定音素的测试材料具有不同的频率重要性函数。将结果与其他研究的结果进行比较表明，重要性函数在一定程度上也取决于可用的反应选项。
