15th International Congress of Phonetic Sciences (ICPhS-15)

Barcelona, Spain
August 3-9, 2003

Perception of the Place of Articulation Feature for Plosives and Fricatives in Noise

Willa Chen (1), Abeer Alwan (2)

(1) TRW, USA
(2) University of California at Los Angeles, USA

This study aims at uncovering perceptually-relevant cues for place of articulation in noise. Stimuli consisted of /CV/ syllables where /C/ is one of /b,d,p,t,f,s,v,z/ and /V/, one of /a,i,u/, in different levels of white noise (SNR range: -15 to 10 dB.) Four subjects participated in the study. Results show that the perception of the labial and alveolar place distinction in noise is dependent on the manner, voicing, and vowel. Perception of place for fricatives is more robust than that for plosives except for voiced /Ca/ syllables. For voiceless consonants, differences in thresholds between fricatives and plosives are, on average, 11.8 dB, 3.8 dB, and 5 dB for the /a/, /i/ and /u/ contexts, respectively. Voiceless consonants are typically more robust than their voiced counterparts; this is especially true for fricatives. As for context, the /a/ context is more robust than /u/ which is more robust than /i/ except for the /p,t/ case.

Full Paper

Bibliographic reference.  Chen, Willa / Alwan, Abeer (2003): "Perception of the place of articulation feature for plosives and fricatives in noise", In ICPhS-15, 1497-1500.