13th Annual Conference of the International Speech Communication Association

Portland, OR, USA
September 9-13, 2012

Dialectal and Generational Variations in Vowels in Spontaneous Speech

Robert Allen Fox, Ewa Jacewicz

Department of Speech and Hearing Science, The Ohio State University, Columbus, OH, USA

The pronunciation patterns across dialect regions in the United States are changing. This paper examines acoustic differences between the vowels of old and middle-aged adults produced in spontaneous speech. The new developments in regional vowels systems which differentiate American English dialects found recently in citation-form vowels and in read speech were confirmed in the present analysis. While providing additional evidence for the existence of sound change on the basis of spontaneous speech data, this work brings to light important challenges facing researchers using spontaneous speech in laboratory analyses such as the loss of fine experimental control in the examination of spectral dynamics or the usefulness of statistical assessment.

Index Terms: dialect variation, sound change, spontaneous speech, vowel acoustics, spectral dynamics.

Full Paper

Bibliographic reference.  Fox, Robert Allen / Jacewicz, Ewa (2012): "Dialectal and generational variations in vowels in spontaneous speech", In INTERSPEECH-2012, 1404-1407.