Accession Number:

ADA250203

Title:

Demodulation Processes in Auditory Perception.

Descriptive Note:

Annual rept. 1 Dec 89-30 Nov 90,

Corporate Author:

OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS

Personal Author(s):

Report Date:

1992-03-01

Pagination or Media Count:

6.0

Abstract:

The development of a multi-channel version of the EWAIF model has begun. The revised model is the IWAIF, or Intensity Weighted Average of Instantaneous Frequency model. The intensity is proportional to the square of the amplitude or envelope and in an earlier paper the PI had shown that envelope squared weighting worked at least as well as simple envelope weighting. Anantharamans work, which he used as his masters thesis, led to a much more efficient calculation tion scheme. The model helps understand the intuitive notion that a signals IWAIF value is its spectral center of gravity. Thus, EWAIF calculations may indeed have application to spectral shape discriminations .

Subject Categories:

  • Anatomy and Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE