中国听力语言康复科学杂志2012，Vol.10Issue(3)：185-188,4.DOI:10.3969/j.issn.1672-4933.2012.03.005
正常听力受试者佩戴不同组合全向性与方向性麦克风的效果比较
The Outcomes of Different Combinations of Omnidirectional and Adaptive Directional Microphones in Normal-hearing Hearing Aid Users
田元元 1胡旭君 2田宏斌1
作者信息
- 1. 唯听助听器,上海,有限公司,上海,200010
- 2. 浙江中医药大学听力与言语科学学院杭州,310000
- 折叠
摘要
Abstract
Objective To compare the effects of different combinations of omnidirectionaland adaptive directional microphones on the speech recognition scores of normal-hearing youngadults and to choose the best combination based on the results. Methods Twenty normal-hearingyoung adults (10 males,10 females) were fitted with three different combinations of microphones(binaural omnidirectional microphone pattern, binaural adaptive directional microphone pattern,an omnidirectional microphone on one ear and an adaptive microphone on the other known as“monofit” pattern). The speech recognition scores were tested and compared as a function offluctuant signal-to-noise ratios (SNR) in a diffuse sound field. Results The L50 values (speechto-noise ratio for 50% intelligibility) of binaural omnidirectional microphone pattern, binauraladaptive directional microphone pattern and “monofit” pattern were-3.55 dB,-7.15 dB and-5.40dB, respectively. The statistical analysis showed that there were significant differences in the L50between the three patterns(P<0.05). Conclusion The speech recognition abilities in noise arehigher when fitted with binaural adaptive directional microphone or “monofit” pattern as comparedto binaural omnidirectional microphone pattern. Also, the speech recognition ability of binauraladaptive directional microphone pattern in noise is significantly higher than that of “monofit”pattern.关键词
全向性麦克风/自适应方向性麦克风/助听器/信噪比/言语识别率Key words
Omnidirectional microphone/ Adaptive directional microphone/ Hearing aid/
Signal-to-noise ratio/ Speech recognition score引用本文复制引用
田元元,胡旭君,田宏斌..正常听力受试者佩戴不同组合全向性与方向性麦克风的效果比较[J].中国听力语言康复科学杂志,2012,10(3):185-188,4.
