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The contribution of von Kempelen’s “Mechanism of Speech” to the ‘phonetic sciences‘ will be analyzed with respect to his theoretical reasoning on speech and speech production on the one hand and on the other in connection with his practical insights during his struggle in constructing a speaking machine. Whereas in his theoretical considerations von Kempelen’s view is focussed on the natural functioning of the speech organs – cf. his membraneous glottis model – in constructing his speaking machine he clearly orientates himself towards the auditory result – cf. the bag pipe model for the sound generator used for the speaking machine instead. Concerning vowel production his theoretical description remains questionable, but his practical insight that vowels and speech sounds in general are only perceived correctly in connection with their surrounding sounds – i.e. the discovery of coarticulation – is clearly a milestone in the development of the phonetic sciences: He therefore dispenses with the Kratzenstein tubes, although they might have been based on more thorough acoustic modelling. Finally, von Kempelen’s model of speech production will be discussed in relation to the discussion of the acoustic nature of vowels afterwards [Willis and Wheatstone as well as von Helmholtz and Hermann in the 19th century and Stumpf, Chiba & Kajiyama as well as Fant and Ungeheuer in the 20th century].
This study examines the movement trajectories of the dorsal tongue movements during symmetrical /VCa/ -sequences, where /V/ was one of the Hungarian long or short vowels /i,a,u/ and C either the voiceless palatal or velar stop consonants. General aims of this study were to deliver a data-driven account for (a) the evidence of the division between dorsality and coronality and (b) for the potential role coarticulatory factors could play for the relative frequency of velar palatalization processes in genetically unrelated languages. Results suggest a clear-cut demarcation between the behaviour of purely dorsal velars and the coronal palatals. Moreover, factors arising from a general movement economy might contribute to the palatalization processes mentioned.
This study is an electropalatographic investigation of clusters composed of /n/ or /l/ followed by the (alveolo)palatal consonants /ʎ, ɲ/ or by dental /t/ in three Catalan dialects, i.e., Majorcan, Valencian and Eastern. Data show that articulatory blending through superposition occurs in the palatalizing environment except when C1 is highly constrained (e.g., dark /l/) or C2 is purely palatal and therefore, produced at a distant articulatory location from C1. Contrary to previous descriptions in the literature, data for /nt, lt/ reveal that blending through superposition rather than assimilation is at work. The implications of these data for theories of speech production are discussed.
Die vorliegende Arbeit widmet sich der phonetischen Motivation phonologischer Palatalisierungsprozesse, bei welchen Vorderzungenvokoide die Palatalisierung (bzw. Affrizierung) vorangehender Plosive bewirken. Durch akustische Analysen zu deutschen und bulgarischen stimmlosen alveolaren und velaren Verschlußlauten wird der Einfluß nachfolgender vorderer Vokoide und des tiefen Vokals /a/ auf die geräuschähnliche Phase nach der plosiven Verschlußlösung der Konsonanten untersucht. Zum Zwecke der Überprüfung einer nach universellen phonologischen Prinzipien formulierten Hierarchie der wahrscheinlichen Inputkandidaten für Palatalisierungen werden akustische Messungen zur Zeitdauer und zu den spektralen Eigenschaften des konsonantischen Segments in wortinitialen Konsonant-Vokoid-Sequenzen vorgestellt. Die Ergebnisse der Studie unterstützen nur teilweise die vorgeschlagene Hierarchiehypothese und zeigen, daß sprachspezifische Besonderheiten einen Einfluß auf die Anordnung der Elemente der Hierarchie ausüben.
Four speakers repeated 8 times 15 sentences containing 'pVp' syllables (V being /a/, /i/ and /u/). The 'pVp' syllables were located in final, penultimate and antepenultimate position relatively to the Intonational Phrase (IP) boundary. They were embedded in lexical words of 1-3 syllables and were either word-initial or word-final. Results show that the closer the vowel in word-final position is to the IP boundary, the longer the duration and the higher the fundamental frequency of the vowel; it is also characterised by larger lip opening gestures. The potential reduction or coarticulation of vowels in wordinitial position compared to their counterparts in word-final position is discussed.