Formant AM-FM for speaker identification

Author

Jankowski, C.R., Jr. ; Quatieri, T.F. ; Reynolds, D.A.

Author_Institution

Lincoln Lab., MIT, Lexington, MA, USA

fYear

1994

fDate

25-28 Oct 1994

Firstpage

608

Lastpage

611

Abstract

The performance of systems for speaker identification (SID) can be quite good with clean speech, though much lower with degraded speech. Thus it is useful to search for new features for SID, particularly features that are robust over a degraded channel. This paper investigates features that are based on amplitude and frequency modulations of speech formants. Such modulations are measured using a high-resolution energy operator and related algorithms for recovering amplitude and frequency from an AM-FM signal. When these features are added to traditional features using an existing SID system with a telephone speech database, SID performance improved by as much as 15%. Energy onset time measurements that yielded improved SID performance are also discussed

Keywords

amplitude modulation; feature extraction; frequency modulation; signal resolution; speaker recognition; telephony; time measurement; AM-FM feature extraction; AM-FM signal; algorithms; amplitude modulation; clean speech; degraded channel; degraded speech; energy onset time measurements; formant AM-FM; frequency modulation; high-resolution energy operator; speaker identification; speech formants; systems performance; telephone speech database; Amplitude modulation; Degradation; Energy measurement; Frequency measurement; Frequency modulation; Robustness; Spatial databases; Speech; Telephony; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Time-Frequency and Time-Scale Analysis, 1994., Proceedings of the IEEE-SP International Symposium on

Conference_Location

Philadelphia, PA

Print_ISBN

0-7803-2127-8

Type

conf

DOI

10.1109/TFSA.1994.467278

Filename

467278