| タイトル | Speech Intelligibility Advantages using an Acoustic Beamformer Display |
| 本文（外部サイト） | http://hdl.handle.net/2060/20150020454 |
| 著者（英） | Sunder, Kaushik; Begault, Durand R.; Godfroy, Martine; Otto, Peter |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 2015-10-29 |
| 言語 | eng |
| 内容記述 | A speech intelligibility test conforming to the Modified Rhyme Test of ANSI S3.2 "Method for Measuring the Intelligibility of Speech Over Communication Systems" was conducted using a prototype 12-channel acoustic beamformer system. The target speech material (signal) was identified against speech babble (noise), with calculated signal-noise ratios of 0, 5 and 10 dB. The signal was delivered at a fixed beam orientation of 135 deg (re 90 deg as the frontal direction of the array) and the noise at 135 deg (co-located) and 0 deg (separated). A significant improvement in intelligibility from 57% to 73% was found for spatial separation for the same signal-noise ratio (0 dB). Significant effects for improved intelligibility due to spatial separation were also found for higher signal-noise ratios (5 and 10 dB). |
| NASA分類 | Acoustics; Behavioral Sciences |
| レポートNO | ARC-E-DAA-TN26713 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
