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[{"key": "dc.contributor.advisor", "value": "Grahn, Tuomas", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Richterich, Nicolas", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2023-09-13T05:47:55Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2023-09-13T05:47:55Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2023", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/89057", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "T\u00e4ss\u00e4 tutkielmassa k\u00e4sitell\u00e4\u00e4n puheen tuottamisen fysiikkaa ja automaattista puheentunnistamista. Tutkielma jakautuu nelj\u00e4\u00e4n osaan, joista ensimm\u00e4isess\u00e4 tutustutaan puheen fyysisiin perusteisiin lagrangelaisen mekaniikan ja termodynamiikan keinoin sek\u00e4 k\u00e4yd\u00e4\u00e4n l\u00e4pi pitkitt\u00e4isten aaltojen seuraksena ilmenevi\u00e4 akustisia ominaisuuksia fluideissa. Toisessa luvussa esitell\u00e4\u00e4n analogisen aaltosignaalin digitoinnin periaatteet ja tutustutaan eri muunnoksiin signaalink\u00e4sittelyn ty\u00f6kaluina, jonka j\u00e4lkeen syvennyt\u00e4\u00e4n signaalin lyhytaikak\u00e4sittelyyn ja sen sovelluksiin puheenk\u00e4sittelyss\u00e4. Kolmannessa luvussa puheentuotantoa k\u00e4sitell\u00e4\u00e4n foneettisesti l\u00e4hde-suodin-mallin avulla sek\u00e4 k\u00e4yd\u00e4\u00e4n l\u00e4pi yksitt\u00e4isten foneemien laskennallisia tunnistamismetodeja. Tutkielman nelj\u00e4nness\u00e4 luvussa perehdyt\u00e4\u00e4n ensin neuroverkkojen ja koneoppimisen perusteisiin, jonka j\u00e4lkeen k\u00e4yd\u00e4\u00e4n l\u00e4pi niille perustuvia nykyaikaisessa puheentunnistuksessa k\u00e4ytetyttyj\u00e4 kielimalleja ja akustisia malleja. Lopuksi esitell\u00e4\u00e4n suomenkielinen puheentunnistumalli.\nTutkielman tavoite on tutustuttaa lukija puheen aaltomekaaniseen luonteeseen sek\u00e4 luoda yleiskatsaus puheentuotannon ja -tunnistamisen mekanismeihin.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "This thesis is concerned with the physics of speech production and the mechanisms of automatic speech recognition. The thesis is split into four parts, of which the first investigates the physical basis of speech through Lagrangian mechanics and thermodynamics and the acoustic phenomena caused by longitudinal waves in fluids. The second chapter presents the principles of analog signal discretization and examines different transformation methods as tools for signal processing, after which short-term signal processing and its applications in speech processing are delved into. In the third chapter speech production is explained with the source-filter-model of phonation and different ways of phoneme recognition are discussed. Neural networks and machine learning are presented in the fourth chapter, after which language models and acoustical models based on them are investigated. Finally, a Finnish language speech recognition model is presented.\nThe goal of the thesis is to familiarize the reader with the wave mechanical nature of speech and to give an overview in the mechanisms of speech production and recognition.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2023-09-13T05:47:55Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2023-09-13T05:47:55Z (GMT). No. of bitstreams: 0\n Previous issue date: 2023", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "85", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "puheakustiikka", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Automaattinen puheentunnistus ja puheen fysikaaliset perusteet", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "bachelor thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-202309135080", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Bachelor's thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Kandidaatinty\u00f6", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Fysiikan laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Physics", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Fysiikka", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Physics", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_7a1f", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "bachelorThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4021", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "puheteknologia", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "puheentunnistus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "signaalink\u00e4sittely", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "teko\u00e4ly", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "fonetiikka", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "akustiikka", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "fysiikka", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}]
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