4th International Conference on Spoken Language Processing

Philadelphia, PA, USA
October 3-6, 1996

Modeling Intra-Speaker Pitch Range Variation: Predicting F0 Targets when "Speaking Up"

Elizabeth Shriberg (1), D. Robert Ladd (2), Jacques Terken (3)

(1) SRI International, Menlo Park, CA, USA
(2) University of Edinburgh, Edinburgh, UK
(3) Institute for Perception Research, Eindhoven, The Netherlands

We study F0 variation produced by "speaking up", as part of a larger study of pitch range variation within and across speakers [1]. We provide a function to predict target F0 values in this "raised" mode from F0 values at corresponding locations in speech produced in a neutral mode. Targets were F0 measurements at points of low internal variability in read Dutch sentences produced by 15 speakers. Across speakers, the relationship between normal and raised targets was well fit by an additive-multiplicative function. The offset for this function was set to a speaker-specific measured value. In the transformed space, the free parameters can be interpreted as (1) an upward shift in F0, and (2) a multiplier affecting the size of F0 excursions. Parameter values varied independently across speakers, suggesting that individuals use different strategies when speaking up. We conclude that at least three speaker-specific values (offset, shift factor, and multiplier) are required for pitch range scaling in this domain.

Full Paper

Bibliographic reference.  Shriberg, Elizabeth / Ladd, D. Robert / Terken, Jacques (1996): "Modeling intra-speaker pitch range variation: predicting F0 targets when "speaking up"", In ICSLP-1996, 650-653.