Oinarrizko emozioen ezaugarri akustikoez Gaminde Terraza, Iñaki; Garay, Urtza; Etxebarria Lejarreta, Aintzane ...
Fontes linguae vasconum,
10/2019
117
Journal Article
Recenzirano
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Lan honetan gazte euskaldun elebidunek oinarrizko emozio simulatuak egitean erabiltzen dituzten ezaugarri akustikoak ikertzen dira. Aztertu diren ezaugarri akustikoak oinarrizko maiztasuna edo f0, ...iraupena eta energia izan dira. Batetik, emozioek zer ezaugarri fonetiko dituzten jakin nahi izan da; bestetik, informatzaileen ama hizkuntzaren eta jatorri geografikoaren arabera bariazio fonetikorik gertatzen den ere aztertu da. Gure azterketa horiek burutu ahal izateko hizkuntzaren eremu osoko 115 informatzaileren corpusa erabili da.
Cilj ovoga istraživanja je ispitati postoje li razlike u kvaliteti glasa i komunikacijskim iskustvima s obzirom na usvojeni mehanizam alaringealnog govora. Istraživanje je provedeno u prostorijama ...Kliničkog bolničkog centra Zagreb, a u njemu je sudjelovalo 19 muških osoba kojima je učinjen kirurški zahvat totalne laringektomije, od kojih 14 njih (74%) za komunikaciju primarno koristi traheoezofagealni govor, a preostalih su 5 (26%) ezofagealni govornici. Ispitanici su ispunili Upitnik samoprocjene komunikacijskih iskustava laringektomiranih osoba (SECEL:HR); te su iz uzorka prolongirane fonacije vokala /a/ u računalnom programu Praat izračunati akustički parametri jitter, shimmer, omjer harmoničnog i šumnog dijela spektra i maksimalno vrijeme fonacije. Ovim istraživanjem potvrđeno je da ezofagealni govornici imaju statistički značajno kraće maksimalno vrijeme fonacije od traheoezofagealnih govornika, dok razlike u postignuću na SECEL:HR upitniku i ostalim promatranim akustičkim parametrima nisu pronađene. Na temelju dobivenih rezultata ne može se tvrditi da je jedna rehabilitacijska metoda povoljnija od druge.
This ground-breaking resource offers engineers guidance in designing narrowband FMCW radars for surveillance, navigation, and missile seeking. It provides a thorough understanding of underpinnings of ...this burgeoning technology and coverage of the RF components that form the basis of radar construction.
Architectural Acoustics, Second Edition presents a thorough technical overview of the discipline, from basic concepts to specific design advice. Beginning with a brief history, it reviews the ...fundamentals of acoustics, human perception and reaction to sound, acoustic noise measurements, noise metrics, and environmental noise characterization. In-depth treatment is given to the theoretical principles and practical applications of wave acoustics, sound transmission, vibration and vibration isolation, and noise transmission in floors and mechanical systems. Chapters on specific design problems demonstrate how to apply the theory, including treatment of multifamily dwellings, office buildings, rooms for speech, rooms for music, multipurpose rooms, auditoriums, sanctuaries, studios, listening rooms, and the design of sound reinforcement systems. Detailed figures illustrate the practical applications of acoustic principles, showing how to implement design ideas in actual structures. This compendium of theoretical and practical design information brings the relevant concepts, equations, techniques, and specific design problems together in one place, including both fundamentals and more advanced material. Practicing engineers will find it an invaluable reference for their daily work, while advanced students will appreciate its rigorous treatment of the basic building blocks of acoustical theory.
Considered the most complete resource in the field - includes basic fundamental relations, derived from first principles, and examples needed to solve real engineering problems.Provides a well-organized text for students first approaching the subject as well as a reliable reference for experienced practitioners looking to refresh their technical knowledge base.New content for developing professionals includes case studies and coverage of specific focus areas such as audio visual design, theaters, and concert halls.
Fast technological development has made noise an inevitable part of everyday life. The main sources of noise are: machines, factories, traffic and noise from the neighbourhood. As a mixture of sounds ...of different charcteristics, noise can be permanent, nonpermanent and impact with different levels, duration and time distribution. Due to the harmful effects of noise on human health, it is necessary to undertake steps which will conrtribute to the reduction of noise levels. Noise pollution and activities for the protection against noise have been analysed in this paper. / Вследствие технологического развития в современном мире, шум стал неотъемлемой частью повседневности. Основными источниками шума являются различные машины, станки, фабрики, заводы, транспорт и прочие звуки из окружения. Как совокупность различных звуков шум может быть стационарным и нестационарным, постоянным и непостоянным, колеблющимся, прерывистым и импульсным, отличаться по уровню и периоду воздействия. Так как шум оказывает негативное воздействие на здоровье человека, необходимо принять все возможные меры по снижению уровня шума. В данной статье представлен анализ негативного воздействия шума и описаны меры и средства по защите от шума. / Ubrzanim tehnološkim razvojem savremenog čovečanstva buka je postala neizbežan deo svakodnevnog života. Osnovni izvori buke su mašine, fabrike, saobraćaj, kao i zvuci iz susedstva. Kao mešavina zvukova različitih karakteristika buka može biti trajna, isprekidana i udarna, promjenljivih nivoa, različitog trajanja i vremenske raspodele. Zbog njenog štetnog uticaja na ljudsko zdravlje potrebno je preduzeti određene aktivnosti radi redukovanja nivoa buke. U ovom radu analizirana je zagađenost bukom i delatnosti na planu zaštite od nje.
SAŽETAK
Totalna laringektomija kao metoda kirurškog liječenja tumora područja glave i vrata nosi doživotne posljedice koje su funkcionalnog, psihološkog i socijalnog karaktera, a jedna od najtežih ...jest gubitak sposobnosti glasnog govora. Zbog toga rehabilitacija glasa/govora poslije totalne laringektomije predstavlja važan aspekt funkcionalne rehabilitacije laringektomirane osobe. Dvije najčešće korištene metode usvajanja alaringealnog govora jesu ezofagealni (EF) i traheoezofagealni (TEF) glas/govor. Cilj istraživanja bio je utvrditi razlike u akustičkim vrijednostima ezofagealnog i traheoezofagealnog glasa te na osnovi objektivnih akustičkih parametara prikazati i obrazložiti koji od ova dva modaliteta alaringealnog glasa posjeduje akustičke vrijednosti bliže vrijednostima laringealnih glasova. Materijali i metode: Proveli smo retrospektivno istraživanje na 75 ispitanika u Klinici za bolesti uha, nosa i grla i kirurgiju glave i vrata Kliničkoga bolničkog centra Zagreb. Akustičke vrijednosti mjerene su programom za akustičku analizu glasa LingWAVES SLP Suite Pro VPR (WEVOSYS medical technology GmbH – Germany) te su analizirani slijedeći parametri: fundamentalna frekvencija, intenzitet, varijacije u osnovnoj frekvenciji (jitter), varijacije u intenzitetu glasa (shimmer). Rezultati statističke analize pokazali su da postoji statistički značajna razlika (p<0,05) između dvije skupine alaringealnih govornika na svim mjerenim parametrima osim na vrijednosti varijacija u intenzitetu glasa. Zaključak: Traheoezofagealni glas/govor postiže bolje rezultate od ezofagealnog glasa/govora na svim mjerenim akustičkim parametrima. Vrijednosti TEF govora značajno odstupaju od vrijednosti urednoga laringealnog glasa.
Room Acoustics Kuttruff, Heinrich
2009, 2014-05-14
eBook
Since publication of the first edition in 1973, this professional and scientific reference has become the standard work in the field, providing detailed analysis of the state of the art in room ...acoustics.
It outlines the theory and practice of sound behaviour in enclosed spaces. Particular emphasis is given to the properties and calculation of reverberation, the most obvious acoustical feature of a closed room. Further key topics include the mechanisms of sound absorption and psychoacoustical factors, from which design parameters and figures of merit are derived. Two chapters are devoted to practical questions such as measurement techniques and the procedures of room acoustical design. The interaction between a room's acoustic properties and its electroacoustic systems is also considered, and refined systems for optimizing listening conditions in a room are presented.
This edition includes a new list of symbols, and updated sections include the measurement of the impulse response including a discussion of distortions, sound propagation as a diffusive process and scattering by wall irregularities.
Razvoj mjerne opreme naročito je došao do izražaja u akustici i elektroakustici. Izrađeni su uređaji i razvijene su nove mjerne metode i postupci za mjerenje svojstava materijala koji se koriste za ...akustičku obradu različitih prostora. Uspoređivanjem rezultata dobivenih različitim načinima pokazalo se da može doći i do znatnih razlika u rezultatima. Stoga je načinjen niz mjerenja i uspoređivanja rezultata dobivenih klasičnim i novim mjernim metodama i postupcima
Surface Acoustic Wave Filters gives the fundamental principles and device design techniques for surface acoustic wave filters. It covers the devices in widespread use today: bandpass and pulse ...compression filters, correlators and non-linear convolvers and resonators. The newest technologies for low bandpass filters are fully covered such as unidirectional transducers, resonators in impedance element filters, resonators in double-mode surface acoustic wave filters and transverse-coupled resonators using waveguides. The book covers the theory of acoustic wave physics, the piezoelectric effect, electrostatics at a surface, effective permittivity, piezoelectric SAW excitation and reception, and the SAW element factor. These are the main requirements for developing quasi-static theory, which gives a basis for the non-reflective transducers in transversal bandpass filters and interdigital pulse compression filters. It is also needed for the reflective transducers used in the newer devices. * A thorough revision of a classic on surface acoustic wave filters first published in 1985 and still in print * Uniquely combines easy-to-understand principles with practical design techniques for all the devices in widespread use today * Complete coverage of all the latest devices which are key to mobile phones, TVs and radar systems * Includes a new foreword by Sir Eric Albert Ash
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