Accession Number:

AD0750537

Title:

Application of Shannon's Rate Distortion Theory to Speech Encoding,

Descriptive Note:

Corporate Author:

NORTH CAROLINA STATE UNIV RALEIGH DEPT OF ELECTRICAL ENGINEERING

Personal Author(s):

Report Date:

1972-09-15

Pagination or Media Count:

89.0

Abstract:

The digital encoding of speech is considered from the point of view of Shannons rate distortion theory. First, a non-adaptive predictor-subtractor operating at intervals less than the pitch period is used to whiten the speech signal. This makes possible the derivation of upper and lower bounds on Shannons rate distortion function which gives the minimum rate necessary to achieve a specified mean square error. Finally, a subjective test was performed to determine the relationship between speech quality and the value of the rate distortion function. Author

Subject Categories:

  • Cybernetics
  • Voice Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE