Covert articulation of Scottish English /r/ now you see and hear it… now you don’t MFM Manchester James M Scobbie Speech Science Research Centre, QMUC Jane Stuart-Smith English Language, Glasgow
Overview Plus ça change, plus c'est la même chose When is phonological change phonological? How is fine phonetic detail grammaticalised? What are phonological features? What is a phonological inventory? Coda /r/ derhoticisation in Scottish English Study 1: Auditory and acoustic – socially stratified Study 2: Ultrasound Tongue Imaging – pilot
Coda /r/ in Scottish English Scottish English is typically described as rhotic (e.g. Wells, 1982: 10-11) Coda /r/ is “phonetically” variable [ ] - trills are rare and/or stereotypical (Ladefoged and Maddieson, 1996: 236) [ ] - alveolar taps are more often noted (e.g. Johnston 1997) [ ] [ ] – approximants – retroflex and post-alveolar - are also common (e.g. Johnston 1997)
Coda /r/ is changing Changes to coda /r/ have been reported in working-class speakers in Edinburgh (e.g. Romaine 1978) and Glasgow (Johnston 1997; Stuart-Smith 2003) to a very weak approximant vowels produced with secondary articulation (e.g. pharyngealization / uvularization) vowels without any audible secondary articulation, i.e. similar to vowels in syllables without /r/
Characteristics of /r/ Differing acoustic properties for approximants (e.g. Ladefoged and Maddieson 1996) lowered F3 – retroflex and post-alveolar approximants high F3 – uvular articulations Coda /r/ in Dutch also shows variable ‘deletion’ (Plug and Ogden 2003; Scobbie & Sebregts 2005) longer vowels differing vowel and consonantal quality covert post-alveolar articulations
Study 1: Coda /r/ in Glaswegian 12 male working-class informants 1m = years 2m = years 3m = years 4m = years Words selected from larger wordlist hatbanfancat heartbarnfarmcardfarcar
Study 1: Coda /r/ in Glaswegian Impressionistic auditory analysis transcription Acoustic analysis duration of vocalic portion vowel quality by formant analysis (midpoint; every 5 pulses up to and including end of vocalic portion)
Auditory results Older speakers showed most articulated /r/ - [ ] [ ] [ ]: [ ] 4m1_farm and even [ ]: [ ] 4m2_car
Auditory results Younger speakers showed: weakly approximated [ ] [ ] [ ]: [ ] 3m1_far pharyngealized/uvularized vowels: [a ] 2m1_card
Auditory results Younger speakers showed - vowels with no audible ‘colouring’ [ ] 1m3_car odd instances of vowels followed by [h] or [ ] [ ] 3m3_far
Acoustic analysis - duration Overall, the vocalic portion of words with /r/ is longer than those without /r/ (p =.0039). Age group 1
Acoustic analysis - duration This is regardless of whether an apical /r/ is heard (red dots) or not. There is also some variation. Age group 3
Acoustic analysis – vowel quality Midpoint formant values show that words with /r/ are generally more retracted than for words without /r/. Age group 1
Acoustic analysis – vowel quality Words heard with /r/ (red dots), tend to be even more retracted. Age group 3
Acoustic analysis – vowel quality Sample tracks (3m1 ‘rhotic’) shows slight dip in (high) F3 in most words with /r/.
Acoustic analysis – vowel quality Sample tracks (3m3 ‘pharyngealized /r/’) shows high, flat F3.
Phonological Implications Has /r/ changed phonologically? How can we tell? If only from neutralisation then “phonology” is thin What is changing in speakers’ grammars? Features and phonotactics? oPlace, manner, timing, duration, phonation all affected Fine-grained phonetic targets? oArticulatory or acoustic? oHow is variation encoded?
Why ultrasound? Ultrasound Tongue Imaging (UTI) Relatively informal Dynamic Real-time Image of whole mid-sagittal tongue surface Impressionistic and objective analyses /r/ is characterised by Open approximation Multiple articulations
Study 2. Pilot 1. Field transcription Glasgow Science Centre, QM open days, Edinburgh International Science Festival Live qualitative analysis Numerous subjects (dozens) All age groups, wide spectrum of social mix Handheld probe plus microphone Possible to record data for re-analysis Visual and auditory transcription
Pilot 1. Preliminary results Lots of inter-speaker variation Acoustically derhoticised /r/ is often Acoustically something else (cf. Study 1) Articulatorily present oMay involve retracted tongue root oMay be anterior –retroflex or bunched (inter & intra-speaker variation) Little or no meta-linguistic self-awareness of change or variation in /r/ among Scots Cf. labiodental /r/, vocalised /l/ and others
Study 2. Pilot 2. Lab study Laboratory recordings Still piloting method Head stabilisation Higher sampling rate to become available Subject read from semantic-class wordlist e.g. “eyes, hair, teeth, nose, ear, mouth”
Study 2. Pilot 2. UTI lab subjects Control rhotic speaker, female (23) Argyll UTI shows characteristic retroflex /r/ bar harm Paham
Study 2. Pilot 2. continued Derhoticiser, male (22) Edinburgh Impressionistically Coda /r/ vary from weak approximants to vocalisation Onset /r/ is approximant or fricative Medial /r/ may be tap Onset clusters are tapped, approx, affricated Other variables also suggest he is comparable to derhoticisers from Study 1
Pilot 2. Vowel space & inventory
Pilot 2. UTI – derhoticising speaker He has acoustic (and articulatory) rhotics Approximants rain Taps ferry
Pilot 2. Acoustics – higher V + /r/ Weakly rhoticised forms shading into derhoticised centring glides & diphthongs
Pilot 2. continued – lower vowels + /r/ Derhoticisation is more frequent, with relatively monophthongal productions – yet no mergers? Weak syllables may sound highly vocalised
Articulatory dynamics with UTI Scobbie & Sebregts (2005) at MFM Dutch derhoticisation Covert /r/ reflex oeasier to see, harder to hear olate, devoiced, weakened, coarticulated Scottish pilot speaker also has visible but not so audible anterior lingual constrictions
UTI orientation A frame of [ ] from rain Tongue surface is the clearest feature – white line Internal structures are visible and help gin transcription
UTI – derhoticising speaker Covert anterior rhotic-like post-alveolar tongue movement in derhoticised words car, storm, suburb car towards end of phonation car target 120ms later covert tip raising
Summary & discussion Fairly extreme auditory derhoticisation Listeners hear little rhoticity from speakers like this Probably can acquire “same” contrasts, lexical sets Articulatory evidence of an [ ] (and an /r/) Anterior gestures are delayed and/or weak Posterior (pharyngeal?) gestures also seen
Targets We assume acoustic derhoticisation and covert articulatory targets are required in the grammar Are the targets compatible or incompatible? Speaker-hearer models suggest there is no need to give either priority… they are in equilibrium Various models Demands from speech production tend to make speakers economical with effort and reduce contrastivity Perceptual demands from listeners tend to make speakers enhance contrasts Covert articulation is the opposite Speakers / hearers have social demands too (Foulkes & Docherty 2005)
Rough exemplar model A shared lexicon is crucial Highly detailed lexical entries (exemplars) Quantity of stored memories causes overlap and abstraction of commonalities Abstraction = formation of ocategorical features (recurrent if functionally-motivated) ogradient tendencies (may also be recurrent) Sociophonetic variation is crucial It stretches and structures phonetic variation Learning and abstraction are not replication of input
Rough exemplar model Within a prosodic position, nothing is gained by positing independent labels such as “/r/” in addition to the fine social and phonetic detail plus recognising emergent recurrent categories (cf. Docherty 1992, Scobbie 2006)
Rough Model We create a system mediated by the input Our intended output is mediated by our articulation Cognitive knowledge has to reflect all three loci The Speaker Hearer The Community
Conclusion Derhoticisation is a typical phenomenon of central phonological interest To merely describe the linguistic situation in Scottish English We need more phonetic detail We need more social detail To develop theories of the traditional core topics of phonology We need new quantitative evidence of all sorts
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