EUROSPEECH '95
Fourth European Conference on Speech Communication and Technology

Madrid, Spain
September 18-21, 1995

Analysis of Acoustic Features Affecting Speaker Identification

Norio Higuchi, Makoto Hashimoto

ATR Interpreting Telecommunications Research Laboratories, Soraku-gun, Kyoto, Japan

In order to investigate the influence of individual acoustic features in the human process of speaker identification, the authors propose a new model to predict the perceptual contribution rate of each acoustic feature. The perceptual contribution rate is measured by a hearing test using speech resynthesized by swapping the acoustic features of natural speech, while its predicted value is calculated using a model based on differences in the acoustic features, that is, a cepstral distance representing spectral information and a difference of the mean logarithmic voice fundamental frequency representing information of the voice fundamental frequency. It is demonstrated that contribution rates can be predicted with an error of 7.71% in RMS after optimization of the acoustic features' weighting factors.

Full Paper

Bibliographic reference.  Higuchi, Norio / Hashimoto, Makoto (1995): "Analysis of acoustic features affecting speaker identification", In EUROSPEECH-1995, 435-438.