The role of visual speech cues in reducing energetic and informational masking
The role of visual speech cues in reducing energetic and informational masking
复制标题
DOI：
10.1121/1.1836832
复制
发表时间：
2005-02-01
影响因子：
2.4
通讯作者：
Freyman, RL
中科院分区：
文献类型：
--
作者：
Helfer, KS;Freyman, RL
两个实验比较了提供视觉语音信息的效果（例如，唇读线索）的能力，听到一个女性说话者的声音，在存在稳态噪声或掩蔽复合体组成的两个其他女性的声音。在第一个实验中，句子的可懂度测量存在的两种类型的掩蔽和不知觉的空间分离的目标和掩蔽。第二项研究在相同的实验条件下测试句子的检测。结果表明，视觉线索提供了更多的好处时，由其他声音（与稳态噪声）的掩蔽语音的识别和检测。此外，视觉线索提供了更大的好处时，目标语音和掩蔽空间重合时，他们似乎从不同的空间位置。这里获得的数据是一致的假设，唇读线索有助于隔离的目标声音从竞争的声音，除了既定的好处，补充掩蔽语音信息。(C)2005年美国声学学会。
Two experiments compared the effect of supplying visual speech information (e.g., lipreading cues) on the ability to hear one female talker's voice in the presence of steady-state noise or a masking complex consisting of two other female voices. In the first experiment intelligibility of sentences was measured in the presence of the two types of maskers with and without perceived spatial separation of target and masker. The second study tested detection of sentences in the same experimental conditions. Results showed that visual cues provided more benefit for both recognition and detection of speech when the masker consisted of other voices (versus steady-state noise). Moreover, visual cues provided greater benefit when the target speech and masker were spatially coincident versus when they appeared to arise from different spatial locations. The data obtained here are consistent with the hypothesis that lipreading cues help to segregate a target voice from competing voices, in addition to the established benefit of supplementing masked phonetic information. (C) 2005 Acoustical Society of America.