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Tytuł:
The Influence of Bilingualism on the Production of Stop Consonants in L1 (Arabic) and L2 (English): Acoustic Analysis of Stop’s Closure Duration
Autorzy:
Abunima, Somaya
Alshamiri, Sumaya Faisal
Hamid, Shahidi A.
Jaafar, Sharifah Raihan Syed
Refaat, Alareer
Powiązania:
https://bibliotekanauki.pl/articles/2196931.pdf
Data publikacji:
2022-10-06
Wydawca:
Komisja Nauk Filologicznych Polskiej Akademii Nauk, Oddział we Wrocławiu
Tematy:
acoustic analysis
language interaction
stop sounds
Arabic-English bilinguals
pronunciation
difficulties
closure duration
Opis:
This paper investigates the impact of bilingualism on the difficulties of pronunciation for both L1 (Arabic) and L2 (English). It assesses the production of stop sounds in Arabic and English through an acoustic analysis of stops' closure duration (henceforth CD), as pronounced by Arabic-English bilinguals whose L1 is Palestinian Arabic. Additionally, the paper aims to highlight the difficulties of pronunciation in both languages. Three groups of same aged adult subjects participated in the production tests; 1) Arabic-English bilinguals whose L1 is Palestinian Arabic, 2) Arabic-monolinguals, and 3) English-monolinguals. The stops in word-medial and final positions were included in closed syllables (CVC) in meaningful words inserted in carrier sentences. The results revealed that the CD of the interaction of stops was represented in four categories; 1) unidirectional effect of L1 on L2 that caused a foreign accent, 2) bidirectional influence resulting in L1-L2 interference, 3) unidirectional impact of L2 on L1, and 4) nativelikeness in both languages without language interference. In addition, the findings showed that bilinguals faced pronunciation challenges in both similar and dissimilar sounds. This paper is expected to initiate more comprehensive studies in the field of interaction between Arabic and English in the Arabic context.
Źródło:
Academic Journal of Modern Philology; 2022, 15; 7-19
2299-7164
2353-3218
Pojawia się w:
Academic Journal of Modern Philology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vittoria agli Assasini! Jak brzmi sukces w grze komputerowej?
Autorzy:
Bajew, Mikołaj
Powiązania:
https://bibliotekanauki.pl/articles/2083170.pdf
Data publikacji:
2022-01-26
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
success
sound
computer game
sounds
Opis:
The paper addresses the issue of the success of the sound of computer game success. To realise this, the author undertook a study of sound samples selected by him, which he considered to be the auditory representation of success in a computer game. The study was carried out with the help of the Reaper computer program and included 9 different sound characters. In the article, the author also reflects on the source and essence of success in a computer game and the game-player-success relationship.
Źródło:
Conversatoria Linguistica; 2021, 13; 7-24
1897-1415
Pojawia się w:
Conversatoria Linguistica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cadaver as a didactic tool for auscultating lung sounds
Ludzkie zwłoki jako narzędzie dydaktyczne w osłuchiwaniu płuc
Autorzy:
Bakalarski, Paweł
Klepacka, Monika
Sówka, Karolina
Bojko, Izabela
Głowala, Damian
Bodecot, Bastien
Pinet Peralta, Luis M.
Powiązania:
https://bibliotekanauki.pl/articles/1033046.pdf
Data publikacji:
2019
Wydawca:
Towarzystwo Pomocy Doraźnej
Tematy:
Pulmonary auscultation
cadavers
education
learning
lung sounds
Opis:
INTRODUCTION: Lung auscultation is one of the basic physical examination tests both in the pre-hospital and hospital settings and should be performed on any patient who has problems with the respiratory system. Depending on the condition, clinicians can hear different breathing sounds. Our aim is to assess the effectiveness of lung auscultation on cadavers. MATERIAL AND METHODS: The study was conducted in October 2018, among 27 Emergency Medical Services (EMS) students at the University of Natural Sciences and Humanities in Siedlce. The research tool used in this study was prepared human cadaver. Students listened to four pulmonary fields (apices and bases) using a stethoscope. RESULTS: The study included 27 students with an average age of 21.76 (SD ± 3.20). The average auscultation results were: right lung at the apex - 59.26% (SD ± 49.14), right lung at the base - 96.30% (SD ± 18.89), left lung at the apex - 40.74% (SD ± 49 , 14), left lung at the base - 77.78% (SD ± 41.57). The average satisfaction score on a scale from 1 to 5 was 4.37 points (SD ± 1.13). CONCLUSIONS: The study showed that conducting classes on mannequins is not sufficient for effective auscultation of pulmonary fields, which could probably be obtained through practice on cadavers. Students showed a high level of satisfaction with participation in the study. In order to improve the quality of students’ education and practical skills, periodic classes oncadavers should be conducted.
WSTĘP: Osłuchiwanie płuc jest jednym z podstawowych badań zarówno w warunkach przedszpitalnych jak i w trakcie hospitalizacji. Należy je wykonać u każdego pacjenta, u którego występują problemy z układem oddechowym. W zależności od obecnego schorzenia, można usłyszeć różne szmery oddechowe. Celem publikacji jest ocena efektywności osłuchiwania płuc na kadawerach. MATERIAŁ I METODY: Badanie przeprowadzono w październiku 2018 roku, wśród 27 studentów ratownictwa medycznego Uniwersytetu Przyrodniczo-Humanistycznego w Siedlcach. Narzędziem badawczym był preparat ludzkiego korpusu, który wcześniej został odpowiednio przygotowany. Studenci przy użyciu stetoskopu osłuchiwali cztery pola płucne (szczyty i podstawy). WYNIKI: W badaniu wzięło udział 27 studentów, u których średnia wieku wyniosła 21.76 (SD ± 3.20). Średnie wyniki osłuchiwania wyniosły: prawe płuco u szczytu – 59,26 % (SD ± 49,14), prawe płuco u podstawy – 96.30 % (SD ± 18,89), lewe płuco u szczytu – 40,74 % (SD ± 49,14), lewe płuco u podstawy – 77,78 % (SD ± 41,57). Średni wynik poziomu satysfakcji w skali od 1 do 5 wyniósł 4,37pkt (SD ± 1,13). WNIOSKI: Badanie wykazało, iż prowadzenie zajęć na fantomach nie jest wystarczające pod względem odpowiedniego przygotowania studentów do efektywnego osłuchiwania pól płucnych, co prawdopodobnie można by było uzyskać poprzez ćwiczenia na kadawerach. Studenci wykazali wysoki poziom satysfakcji z udziału w badaniu. Należy poszukać rozwiązań umożliwiających okresowe prowadzenie zajęć na kadawerach dla studentów w celu podnoszenia jakości ich kształcenia i umiejętności praktycznych.
Źródło:
Critical Care Innovations; 2019, 2, 3; 11-18
2545-2533
Pojawia się w:
Critical Care Innovations
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficient Covid-19 disease diagnosis based on cough signal processing and supervised machine learning
Autorzy:
Bensid, Khaled
Lati, Abdelhai
Benlamoudi, Azeddine
Ghouar, Brahim Elkhalil
Senoussi, Mohammed Larbi
Powiązania:
https://bibliotekanauki.pl/articles/2174478.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
voice disease
Covid-19
cough sounds
features extraction
classification
ekstrakcja cech
klasyfikacja
kaszel
przetwarzanie sygnału
uczenie maszynowe
Opis:
The spread of the coronavirus has claimed the lives of millions worldwide, which led to the emergence of an economic and health crisis at the global level, which prompted many researchers to submit proposals for early diagnosis of the coronavirus to limit its spread. In this work, we propose an automated system to detect COVID-19 based on the cough as one of the most important infection indicators. Several studies have shown that coughing accounts for 65% of the total symptoms of infection. The proposed system is mainly based on three main steps: first, cough signal detection and segmentation; second, cough signal extraction; and third, three techniques of supervised machine learning-based classification: Support Vector Machine (SVM), KNearest Neighbours (KNN), and Decision Tree (DT). Our proposed system showed high performance through good accuracy values, where the best accuracy for classifying female coughs was 99.6% using KNN and 88% for males using SVM.
Źródło:
Diagnostyka; 2023, 24, 1; art. no. 2023103
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Percepción de acento y acortamiento vocálico en español
Autorzy:
Broś, Karolina
Powiązania:
https://bibliotekanauki.pl/articles/2079783.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Warszawski. Wydział Neofilologii
Tematy:
speech perception
perception of non-native sounds
stress pttern
vowel reduction
default vowel
Spanish sound perception
percepción
patrón melódico
reducción vocálica
percepción de la schwa
vocal por defecto
sonidos no nativos
Opis:
Spanish is well-known for its consonant reduction processes across all dialects. At the same time, its vowel inventory is not particularly rich, with five evenly distributed, stable vowel categories that tend not to change their qualities regardless of stress and rhythm. At the same time, several Spanish varieties show vowel reduction, but crucially without accompanying advancement in terms of consonantal weakening. Based on this evidence it is proposed that the two types of reduction are correlated to the extent that one excludes the other. Given the extraordinary stability of the Spanish vowels in the vast majority of the dialects, various cues to stress and reduction were investigated, followed by a series of empirical studies in the form of perception experiments. These studies are based on the assumption that changes in Spanish stress and vowel quality should inhibit comprehension of native categories (sounds, words and prosodic elements). The research conducted in order to test this hypothesis has shown that this is indeed the case. What is more, an indication of a potential boundary between native segments with important implications for speech signal perception has been discovered.
Źródło:
Itinerarios; 2015, 22; 13-34
1507-7241
Pojawia się w:
Itinerarios
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Federico Incardona and Giovanni Damiani
Autorzy:
Carapezza, Paolo Emilio
Powiązania:
https://bibliotekanauki.pl/articles/780337.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
Federico Incardona
Giovanni Damiani
University of Palermo
Post-serial dodecaphony
Heterophony
Natural harmonic sounds
Abstract expressionism
Sound vegetation
Thought in sounds
Sound architecture
Opis:
Together with Sciarrino and Casale, Incardona and Damiani are the most important composers trained at Palermo University’s Musicological Institute. Federico Incardona (Palermo, 1958-2006) reconciles the social commitment of Berg and the political tension of Nono with the sublimated eroticism of Szymanowski. If Nono’s works, like those of Evangelisti in a different way, blend dodecaphonic dialectic with the corporeity of the sound of Varèse, Incardona blends Evangelisti’s sonorous cosmogony with the erotic immediateness of Bussotti. But his principal reference point is Mahler. His music is rich in meaning and strong emotional intensity, concentrated and sublimated: it is like “processes of denuding of the melody, carnal embraces between the parts, dodecaphonic series modelled on the body of the loved one” (Spagnolo). Its “new linearity and temporal tension”, is wedded to the “absolute primacy of expression and emotion”, in full awareness of the “deep unity of emotion and knowledge” (Lombardi Vallauri). Indeed, in the intense expressionism of his music, dodecaphonic construction is always at the service of a dialectical discourse which is dense and deep, but - in his last works - clear and fluid like a melody by Bellini. “Infinite melos”, Marc Crescimanno defines it: harmonic richness and dense hétérophonie complexities are blended; the counterpoint is based “on the superimposition of manifold variations on the same figure, with precise control of the vertical encounters on its melodic-harmonic hinges”. Born into a dynasty of engineers and architects, Giovanni Damiani (Palermo, 1966) is himself an engineer and architect, but in sound space. Rather than music, his works are organized Sound: “embodiment of the intelligence inherent in sounds themselves”, in the manner of Varèse, and specifically “sound vegetation”, in the manner of Bartok. His most important work, Salve follie precise (1998-2004: on a libretto in verse by Francesco Carapezza, based on Semmelweis et l’infection puerpérale that Louis-Ferdinand Céline wrote between 1924 and 1929), represents precisely the germination of life (of algae from water, of grass from rock, of man from woman, of sounds from Sound) and the threats of death that surround it, that is to say of regression of the animal and vegetable kingdoms to the mineral kingdom. In it Damiani exclusively uses, as previously in the great symphony Matrice/Organon (1995), natural harmonic sounds. We thus assist at harmonic germination; Sound generates sounds, the Note generates notes. If Damiani as a musicologist follows on from Réti, as a composer he follows on from Schenker. For him the note, seen as pure Sound internally structured a priori, is everything: the universe of artistic creation in sound space is only unfolding of the tension internal to the note itself. Everything (melody, tonality, polyphony, harmony), as Cesare Brandi wrote, “comes from the very nature of the note, which is, in the stratification of harmonics, tonic, isolated note (of a melody), vertical chord and horizontal encounter of polyphonic lines”.
Źródło:
Interdisciplinary Studies in Musicology; 2013, 12; 41-56
1734-2406
Pojawia się w:
Interdisciplinary Studies in Musicology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Usefulness of the matching pursuit method in phonocardiographic signal analysis
Autorzy:
Damps, Natalia
Kłaczyński, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/2146641.pdf
Data publikacji:
2021
Wydawca:
Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:
heart sounds
phonocardiographic signal
matching pursuit
stethoscope
tony serca
sygnał fonokardiograficzny
poszukiwanie dopasowujące
stetoskop
Opis:
This paper presents a phonocardiographic signal analysis with special emphasis on the Matching Pursuit method. To the knowledge of the authors, this method has not been used before to analyze PCG (phonocardiogram) signals. For this reason, its usefulness for this signal type was tested and a dictionary of Gabor atoms was created. Based on these findings, PCG signal analysis was performed as a Wigner-Ville distribution and compared with a spectrogram. Observing the obtained graphs, it was found that the Wigner-Ville map gives more detailed information about the frequencies which make up the given signal and the time of their occurrence. This method can be used to detect anomalies and pathologies of the heart.
Źródło:
Vibrations in Physical Systems; 2021, 32, 1; art. no. 2021102
0860-6897
Pojawia się w:
Vibrations in Physical Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Virtual Sound Localization by Blind People
Autorzy:
Dunai, L.
Lengua, I.
Peris-Fajarnés, G.
Brusola, F.
Powiązania:
https://bibliotekanauki.pl/articles/178022.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
virtual sounds
localization
distance
azimuth
blind people
Opis:
The paper demonstrates that blind people localize sounds more accurately than sighted people by using monaural and/or binaural cues. In the experiment, blind people participated in two tests; the first one took place in the laboratory and the second one in the real environment under different noise conditions. A simple click sound was employed and processed with non-individual head related transfer functions. The sounds were delivered by a system with a maximum azimuth of 32° to the left side and 32° to the right side of the participant’s head at a distance ranging from 0.3 m up to 5 m. The present paper describes the experimental methods and results of virtual sound localization by blind people through the use of a simple electronic travel aid based on an infrared laser pulse and the time of flight distance measurement principle. The lack of vision is often compensated by other perceptual abilities, such as the tactile or hearing ability. The results show that blind people easily perceive and localize binaural sounds and assimilate them with sounds from the environment.
Źródło:
Archives of Acoustics; 2015, 40, 4; 561-567
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aspekte der Neuordnung des Kanzleiwesens im preußischen Ordensland nach dem 2. Thorner Friedensschluss
Aspects of the new ordinance concerning the chanceery in the monastic Teutonic State in Prussia after the Second Peace of Toruń
Autorzy:
Heckmann, Dieter
Powiązania:
https://bibliotekanauki.pl/articles/1194012.pdf
Data publikacji:
2016
Wydawca:
Towarzystwo Naukowe w Toruniu
Tematy:
chancellery
the chancellery landscape
personal relations
double sounds
Opis:
After the outbreak of the Thirteen Years‘ War there was created a certain kind of the Pomesan chancellery landscape. Its creation resulted from the tendency of various chancelleries to cooperate. The central point of the landscape was Marienburg’s [Polish: Malbork] chancellery of the Grand Master under the supervision of the clergyman and chancellor Andreas Santberg. He organized the manner of administering the written documentation with the help of public notaries, who had prepared the earliest files. The personal relations between the city chancelleries of the Monastic State and the Teutonic chancelleries may be noticed. The situation of the work of the chancellery during the Thirteen Years’ War was determined by extraordinary conditions. Preparing the registers of documents in the chancellery of the Grand Master was stopped. Instead of this, the number of drafts of documents increased. In the cities and towns which were most affected by the war events, it was hard to maintain the continuity in the production of documents. After the Grand Master moved to Königsberg, the preparations to set up a new registry office of the territorial ruler commenced. The chancellery’s personnel organized the administration of the documentations according to old models of the Sambian chancellery. One of the characteristic features of the German writing used during the war was the introduction of double sounds „nn” in the initial syllable and sometimes in the final syllable. After the conclusion of the Peace Treaty the process of the gradual secularization of the Grand Master’s chancellery could be observed. In the times of Friedrich von Sachsen educated lawyers were responsible for chancelleries following the models taken over from the Meissen motherland of the Grand Master. Under the rule of the margrave Albrecht people from Francophonie became trustworthy cooperators. They led to the gradual francisation of the language of the chancellery. Writing registers again became part of chancellery production. A new administration was created. Similar phenomena took place in case of writing production of the city chancelleries and other lay and church chancelleries at the end of the Teutonic period, which requires further research.
Źródło:
Zapiski Historyczne; 2016, 81, 4; 101-116
0044-1791
2449-8637
Pojawia się w:
Zapiski Historyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Urządzenia akustyczne UOZ-1 sposobem na ograniczenie kolizji z udziałem zwierząt na liniach kolejowych
Sonic deterring devices UOZ-1 as a tool to limit collisions with animals along the railways
Autorzy:
Jasińska, K.
Werka, J.
Krauze-Gryz, D.
Wasilewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/990028.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zwierzeta dziko zyjace
wedrowki zwierzat
linie kolejowe
zagrozenia zwierzat
kolizje z pociagami
odstraszanie zwierzat
odstraszacze akustyczne
urzadzenie UOZ-1
skutecznosc
railways
natural sounds
density of tracks
animals mortality
Opis:
Modernization of railways in Poland should ensure not only safety of passengers, but also limit their negative impact on the environment, especially possibility of train collisions with animals. The aim of the study conducted in the years 2007−2013 on the E20 railway Mińsk Mazowiecki−Siedlce were (1) to record places where animals cross the railway most often, both on the stretches secured and unsecured with sonic deterring devices (UOZ−1), and (2) to specify the number and locations of collisions of trains with mammals. Winter tracking along the railways identified 12 mammal species that crossed the railways. These included four ungulates (moose, red deer, roe deer, wild boar) and eight smaller mammals (red fox, marten, domestic dog, domestic cat, polecat, stoat, brown hare, red squirrel). The average number of tracks of all mammals was higher on the stretches with UOZ−1 than on the stretches over 100 meters away from UOZ−1 (1.52 and 1.01/100 m, respectively, p<0.0001). For ungulates it was higher on the stretches with UOZ−1 (0.66 and 0.38/100 m respectively, p<0.0005) as well. During the study 26 cases of animals kills as result of collisions with trains were recorded: 9 mooses, 2 red deer, 7 roe deer, 15 wild boars, 1 fox, 1 stone marten, 4 dogs. Most of these collisions took place out of the range of UOZ−1.
Źródło:
Sylwan; 2014, 158, 02; 143-150
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Konceptualizacja zmysłów w twórczości Adama Mickiewicza
Conceptualization of senses in Mickiewicz’s output
Autorzy:
Kładoczny, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1400616.pdf
Data publikacji:
2016-12-19
Wydawca:
Uniwersytet Zielonogórski. Wydział Humanistyczny
Tematy:
Mickiewicz
senses
conceptualization
semantic frame
sounds names
zmysły
konceptualizacja
rama interpretacyjna
nazwy dźwięków
Opis:
Na podstawie słownika języka Adama Mickiewicza językoznawcy mogą dokonać rekonstrukcji konceptualizacji zmysłów w twórczości pisarza. Zebrane słownictwo właściwe dla każdego ze zmysłów ułożono w połączone ze sobą kategorie semantyczne, które tworzą ramę interpretacyjną. Pisarz był wrażliwy na każdy ze zmysłów, lecz najczęściej odwoływał się do wzroku i słuchu. Korzystał w pełni z bogactwa słownictwa właściwego dla swoich czasów. W badanym zakresie leksyki nie tworzył nowych słów.
Linguists can reconstruct a conceptualization of senses in Adam Mickiewicz’s writings on the basis of the writer’s language dictionary. Lexicon characterizing each sense were arranged in semantic categories connected with one another, which construct a frame semantic. The writer was susceptible to each of senses but most often he referred to sight and hearing. Mickiewicz used a complete variety of words specific to his epoch. Adam Mickiewicz didn’t form new words in the studied range of vocabulary.
Źródło:
Filologia Polska. Roczniki Naukowe Uniwersytetu Zielonogórskiego; 2016, 2; 263-306
2450-3584
Pojawia się w:
Filologia Polska. Roczniki Naukowe Uniwersytetu Zielonogórskiego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reproduction of Phantom Sources Improves with Separation of Direct and Reflected Sounds
Autorzy:
Kleczkowski, P.
Król, A.
Małecki, P.
Powiązania:
https://bibliotekanauki.pl/articles/177770.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
spatial audio
multichannel sound reproduction
phantom sources
auralization
ambisonics abbreviations
IR (impulse response)
SIR (spatial impulse response)
RT (reverberation time)
ANOVA (analysis of variance)
DS – direct sound
RSs – reflected sounds
Opis:
In virtual acoustics or artificial reverberation, impulse responses can be split so that direct and reflected components of the sound field are reproduced via separate loudspeakers. The authors had investigated the perceptual effect of angular separation of those components in commonly used 5.0 and 7.0 multichannel systems, with one and three sound sources respectively (Kleczkowski et al. (2015b). In that work, each of the front channels of the 7.0 system was fed with only one sound source. In this work a similar experiment is reported, but with phantom sound sources between the front loudspeakers. The perceptual advantage of separation was found to be more consistent than in the condition of discrete sound sources. The results were analysed both for pooled listeners and in three groups, according to experience. The advantage of separation was the highest in the group of experienced listeners.
Źródło:
Archives of Acoustics; 2015, 40, 4; 575-584
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Loudness Assessment of Musical Tones Equalized in A-weighted Level
Autorzy:
Klonari, D.
Pastiadis, K.
Papadelis, G.
Papanikolaou, G.
Powiązania:
https://bibliotekanauki.pl/articles/177354.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
loudness perception
A-weighted level equalization
wind instrument sounds
Opis:
The present study was carried out to determine whether recorded musical tones played at various pitches on a clarinet, a flute, an oboe, and a trumpet are perceived as being equal in loudness when presented to listeners at the same A-weighted level. This psychophysical investigation showed systematic effects of both instrument type and pitch that could be related to spectral properties of the sounds under consideration. Level adjustments that were needed to equalize loudness well exceeded typical values of JNDs for signal level, thus confirming the insufficiency of A-weighting as a loudness predictor for musical sounds. Consequently, the use of elaborate computational prediction is stressed, in view of the necessity for thorough investigation of factors affecting the perception of loudness of musical sounds.
Źródło:
Archives of Acoustics; 2011, 36, 2; 239-250
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
System wspierający diagnostykę rodzin pszczelich
A support system for the diagnosis of bee colonies
Autorzy:
Krzywoszyja, G.
Andrzejewski, G.
Powiązania:
https://bibliotekanauki.pl/articles/157623.pdf
Data publikacji:
2014
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
diagnostyka
dźwięki
pszczoły
stan
bees
condition
diagnostics
sounds
Opis:
W artykule opisano konstrukcję systemu diagnostycznego, przeznaczonego do obserwacji zachowań pszczół. Główna część artykułu zawiera ocenę możliwości wydobycia informacji z dźwięków wytwarzanych przez pszczoły. Celem badań jest rozpoznanie stanów rodziny pszczelej oraz ich klasyfikacja. Opisano proces tworzenia modeli dźwięków oraz redukcji ich wymiarów. Przedstawiono obrazy otrzymane w diagnostycznej przestrzeni obserwacji stanów. W części końcowej opisano proces badania wybranego strumienia dźwięków i podjęto próbę interpretacji otrzymanych wyników.
The design of a diagnostic system to observe the behavior of bees is described. The main part of the paper contains an assessment of the possibility of extracting information from sounds produced by bees. The aim of the study is to identify the states of colonies and their classification. It describes the processes modeling the sounds and reducing their size. Experimental images created in the diagnostic state space are shown. Finally, the process of testing a selected stream of sounds is outlined and an attempt to interpret the results is made.
Źródło:
Pomiary Automatyka Kontrola; 2014, R. 60, nr 11, 11; 978-981
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sounds in space: the potential uses for acoustics in the exploration of other worlds
Autorzy:
Leighton, T.
Petculescu, A.
Powiązania:
https://bibliotekanauki.pl/articles/331578.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Akustyczne
Tematy:
sounds in space
acoustics
acoustical models
Opis:
This paper examines the past and future uses for acoustics in space research. Whilst on the larger scales in some topic areas, acoustical models have proved to be useful in extraterrestrial research, in other areas there has been not so much use made of acoustical techniques. One particular area where greater use might be made of acoustical sensors is in the deployment of acoustical sensors on probes sent out to other moons and planets. This is surprising given that acoustical sensors deliver benefits that are particularly useful for planetary probes, in terms of weight, bandwidth, ruggedness and cost. Whilst geoacoustical data could be obtained from many bodies, those which contain a dense atmosphere or an ocean offer intriguing additional possibilities. Examples from Mars, Venus, Titan, Enceladus and Europa will be discussed.
Źródło:
Hydroacoustics; 2008, 11; 225-239
1642-1817
Pojawia się w:
Hydroacoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
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