The Influence of High-Frequency Envelope Information on Low-Frequency Vowel Identification in Noise.

ABSTRACT: Vowel identification in noise using consonant-vowel-consonant (CVC) logatomes was used to investigate a possible interplay of speech information from different frequency regions. It was hypothesized that the periodicity conveyed by the temporal envelope of a high frequency stimulus can enhance the use of the information carried by auditory channels in the low-frequency region that share the same periodicity. It was further hypothesized that this acts as a strobe-like mechanism and would increase the signal-to-noise ratio for the voiced parts of the CVCs. In a first experiment, different high-frequency cues were provided to test this hypothesis, whereas a second experiment examined more closely the role of amplitude modulations and intact phase information within the high-frequency region (

SUBMITTER: Schubotz W 

PROVIDER: S-EPMC4701218 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature