INTERSPEECH 2012
13th Annual Conference of the International Speech Communication Association

Portland, OR, USA
September 9-13, 2012

Automatic Detection of High Vocal Effort in Telephone Speech

Jouni Pohjalainen, Tuomo Raitio, Hannu Pulakka, Paavo Alku

Department of Signal Processing and Acoustics, Aalto University, Espoo, Finland

A system is proposed for the automatic detection of high vocal effort in speech. The system is evaluated using both PCM-coded speech and AMRcoded telephone speech. In addition, the effect of far-end noise in the telephone conditions is studied using both matched-condition training and cases with additive noise mismatch. The proposed system is based on Bayesian classification of mel-frequency cepstral feature vectors. Concerning the MFCC feature extraction process, the substitution of a spectrum analysis method emphasizing the fine structure improves the results in the noisy cases.

Index Terms: vocal effort detection, speech analysis

Full Paper

Bibliographic reference.  Pohjalainen, Jouni / Raitio, Tuomo / Pulakka, Hannu / Alku, Paavo (2012): "Automatic detection of high vocal effort in telephone speech", In INTERSPEECH-2012, 691-694.