Accession Number:

AD0785135

Title:

Speaker Verification.

Descriptive Note:

Final technical rept. Mar 72-Apr 74,

Corporate Author:

TEXAS INSTRUMENTS INC DALLAS EQUIPMENT GROUP

Personal Author(s):

Report Date:

1974-07-01

Pagination or Media Count:

114.0

Abstract:

A practical method of automatic speaker verification is developed, based on amplitude spectrum. Precise time registration receives primary emphasis. Verification is based on the similarity of six spectraltime matrices located with a test phrase with corresponding matrices defined during training. Each matrix is 0.1 second long and is precisely located by scanning the test phrase for a best match with the reference matrix. Reject rate for known speakers was plotted versus session number, at a nominal reject rate of 10 percent. Initial and final reject rates of 5 percent and 15 percent, respectively, indicate the necessity of adaptation in a practical system. Modified author abstract

Subject Categories:

  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE