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ACOUSTIC ANALYSIS OF POLISH HOMORGANIC STOP CLUSTER ACROSS WORD-BOUNDARY

100%
Rojczyk A.
LingVaria : Półrocznik Wydziału Polonistyki UJ poświęcony zagadnieniom języka i językoznawstwa
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2008
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issue 1(5)
73-85
EN
The paper endeavours to verify an observation that Polish homorganic stop geminates straddling word boundaries are unreleased. Fifteen Polish subjects participated in the experiment, producing stop geminates in different contexts specified for the place of articulation, articulatory tempo, and voiced-voiceless distinction. The collected samples were acoustically analysed for presence or absence of the release burst. The results do no corroborate a putative unreleased status of Polish homorganic stop geminates across word boundaries. They show, however, that the frequency of released geminates strongly depends on the place of articulation, with dental /t, d/ released most frequently. Voiceless stops tend to be more readily released than voiced stops, albeit this tendency is only close to significant. Moreover, a significant impact of the tempo of articulation on the occurrence of the release burst has been demonstrated for both voiced and voiceless stops - longer utterance are conducive to unreleased realisations of geminates.
2
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FROM THE ACOUSTIC SIGNAL TO THE SEMANTICS OF WORDS – PSYCHOLINGUISTIC RESEARCH ON RECOGNITION AND PRODUCTION OF SPEECH

100%
Rojczyk A.
Biuletyn Polskiego Towarzystwa Językoznawczego
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2008
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vol. 64
249-260
EN
The paper concentrates on psycholinguistic processes which occur while decoding speech from the acoustic signal to a complete recognition of the word. The acoustic signal reaching the hearer fails to reveal any clear-cut phonemic boundaries or invariability, therefore different perception models refer to different sources in speech categorization. The reason for the fact that phonemic categories are so strongly blurred in the signal is coarticulation, which, despite its disruptive effect on the structure of the signal, appears to be crucial in increasing the effectiveness of speech recognition. Having processed the signal into distinct speech categories, the hearer searches for an appropriate lexeme in their lexicon. The process appears to rely strongly on two aspects; competition and neighbourhood. Lexemes congruent with the incoming speech signal are activated in parallel and compete for recognition. Lexemes in dense neighbourhood are activated differently from lexemes in sparse neighbourhood. In its final parts, the article discusses how the ability to write and read influences the phonological representation of words.
3

CATEGORISATION OF SPEECH SOUNDS IN AUDITORY PERCEPTION

100%
Rojczyk A.
Linguistica Silesiana
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2006
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vol. 27
35-44
EN
The paper aims to present the phenomenon of categorization in speech perception. It commences with showing the diversity and distribution of speech sounds in the world's languages. Next, certain distributional tendencies, such as back vowel rounding and low vowel nasalization, are presented and discussed in the light of auditory and acoustic principles. Categorical perception, as the pivotal concept of the paper, is delineated from a procedural and methodological point of view. Last but not least, the article discusses the arguments against categorization in speech perception as well as various attempts to define a unit of perception other than a phonetic segment. As a conclusion, proposals for the reconciliation between categorical and continuous modes of perception are shown.
4

THE PERCEPTION OF ENGLISH LENIS PLOSIVE CONSONANTS WORD-FINALLY AND WORD-INITIALLY BY THE POLES

100%
Rojczyk A.
Linguistica Silesiana
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2005
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vol. 26
91-104
EN
The study endeavours to probe into the perception of English lenis plosive consonants word-initially and word-finally by the Poles without any experience with English either in form of formal classroom teaching or contacts with native speakers. It proceeds from a concise contrastive articulatory and acoustic juxtaposition of Polish and English plosives, grouped into respective phenomena, to the analysis of research data. The research is expected to shed some light upon efficiency of the perception of lenis plosives by the Poles, who utilise the voiced - voiceless rather than fortis - lenis distinction as a functional contrast. Then, more detailed questions are posed concerning the potential influence of neighbouring sounds, such as vowels of front or back quality, on the perception. Finally, certain observed tendencies and regularities are indicated.
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