PERCEPTION OF COMPLEX AUDITORY STIMULI BY THE DEAF

其长期目的是提供对 听障人士言语感知的基本声学模式。 特别是，寻求形成设计基础的信息 最终的语音处理系统，并调整这些系统以 个人的。辅音感知的主要声学线索的使用 使用辅音研究听力受损和语音提示增强 来自自然发音的音节的刺激，根据频率选择 在谈话中发生的。所研究的辅音将是摩擦音 并在对白、开头和结尾的位置停下来。和/n，1/英寸 声音间的姿势。所研究的线索是那些区分 塞音/摩擦音、浊音/清音、发音位置、鼻音和 横向的。增强，研究摩擦和停顿，是 摩擦/突发放大、杂音放大和光谱 太夸张了。个体听者的辨别训练范式 对线索增强的使用也进行了研究。

The long-range purpose is to provide an understanding of the use of the basic acoustic patterns in speech perception by hearing-impaired persons. Particularly, information is sought that would form a basis for designing eventual speech-processing systems and adjusting these systems for the individual. The use of major acoustic cues to consonant perception by the hearing-impaired, and speech-cue enhancement are studied using consonant stimuli from naturally spoken syllables, chosen on the basis of frequency of occurrence in conversations. The consonants studied will be fricatives and stops in intervocalic, initial, and final positions. and /n,1/ in intervocalic position. The cues studied are those that distinguish stop/fricative, voiced/voiceless, place of articulation, nasal, and lateral. Enhancements, studied for fricatives and stops, are friction/burst amplification, murmur amplification, and spectral exaggeration. Discrimination training paradigms for individual listeners' use of cue-enhancements are also studied.